Celebratio Mathematica

Walter D. Neumann

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W. D. Neu­mann: “3-di­men­sion­al \( G \)-man­i­folds with 2-di­men­sion­al or­bits,” pp. 220–​222 in Pro­ceed­ings of a con­fer­ence on trans­form­a­tion groups (New Or­leans, LA, 8 May–2 June 1967). Edi­ted by P. S. Mostert. Spring­er (New York), 1968. MR 245043 Zbl 0177.​52101 incollection

W. D. Neu­mann: “On car­din­al­it­ies of free al­geb­ras and ranks of op­er­a­tions,” Arch. Math. (Basel) 20 (1969), pp. 132–​133. MR 248068 Zbl 0177.​02601 article

W. D. Neu­mann: “Rep­res­ent­ing vari­et­ies of al­geb­ras by al­geb­ras,” J. Aust. Math. Soc. 11 : 1 (1970), pp. 1–​8. Ded­ic­ated to my fath­er on his 60th birth­day. MR 277465 Zbl 0199.​32702 article

W. D. Neu­mann: “On the qua­s­ivari­ety of con­vex sub­sets of af­fine spaces,” Arch. Math. (Basel) 21 (1970), pp. 11–​16. MR 262911 Zbl 0194.​01502 article

W. D. Neu­mann: \( S^1 \)-ac­tions and the \( \alpha \)-in­vari­ant of their in­vol­u­tions. Bonn Math­em­at­ic­al Texts 44. Uni­versität Bonn, Math­em­at­isches In­sti­tut, 1970. MR 317346 Zbl 0219.​57030 book

F. Hirzebruch, W. D. Neu­mann, and S. S. Koh: Dif­fer­en­ti­able man­i­folds and quad­rat­ic forms. Lec­ture Notes in Pure and Ap­plied Math­em­at­ics 4. Mar­cel Dek­ker (New York), 1971. With an ap­pendix by W. Schar­lau. MR 341499 Zbl 0226.​57001 book

W. D. Neu­mann: “Fiber­ing over the circle with­in a bor­d­ism class,” Math. Ann. 192 (1971), pp. 191–​192. MR 287554 Zbl 0211.​55602 article

U. Kar­ras, M. Kreck, W. D. Neu­mann, and E. Ossa: Cut­ting and past­ing of man­i­folds; \( \mathrm{SK} \)-groups. Math­em­at­ics Lec­ture Series 1. Pub­lish or Per­ish (Bo­ston), 1973. MR 362360 Zbl 0258.​57010 book

W. D. Neu­mann: “On Mal­cev con­di­tions,” J. Aust. Math. Soc. 17 : 3 (1974), pp. 376–​384. Ded­ic­ated to my moth­er, in lov­ing memory. MR 371781 Zbl 0294.​08004 article

W. D. Neu­mann: “Cyc­lic sus­pen­sion of knots and peri­od­icity of sig­na­ture for sin­gu­lar­it­ies,” Bull. Am. Math. Soc. 80 : 5 (September 1974), pp. 977–​981. MR 358797 Zbl 0292.​57013 article

U. Hirsch and W. D. Neu­mann: “On cyc­lic branched cov­er­ings of spheres,” Math. Ann. 215 (October 1975), pp. 289–​291. MR 375321 Zbl 0289.​57003 article

W. D. Neu­mann: “Man­i­fold cut­ting and past­ing groups,” To­po­logy 14 : 3 (August 1975), pp. 237–​244. MR 380837 Zbl 0311.​57007 article

M. Brown and W. D. Neu­mann: “Proof of the Poin­caré–Birk­hoff fixed point the­or­em,” Mich. Math. J. 24 : 1 (1977), pp. 21–​31. MR 448339 Zbl 0402.​55001 article

W. D. Neu­mann: “Brieskorn com­plete in­ter­sec­tions and auto­morph­ic forms,” In­vent. Math. 42 : 1 (1977), pp. 285–​293. Grate­fully ded­ic­ated to my teach­er F. E. Hirzebruch. MR 463493 Zbl 0366.​32015 article

L. H. Kauff­man and W. D. Neu­mann: “Products of knots, branched fibra­tions and sums of sin­gu­lar­it­ies,” To­po­logy 16 : 4 (1977), pp. 369–​393. MR 488073 Zbl 0447.​57012 article

W. D. Neu­mann: Equivari­ant Witt rings. Bon­ner Math­em­at­ische Schriften 100. Uni­versität Bonn, Math­em­at­isches In­sti­tut, 1977. MR 494248 Zbl 0368.​10020 book

W. D. Neu­mann: “Gen­er­al­iz­a­tions of the Poin­caré Birk­hoff fixed point the­or­em,” Bull. Aust. Math. Soc. 17 : 3 (1977), pp. 375–​389. MR 584597 Zbl 0372.​54041 article

W. D. Neu­mann: “Mal’cev con­di­tions, spec­tra and Kro­neck­er product,” J. Aust. Math. Soc. Ser. A 25 : 1 (1978), pp. 103–​117. Er­rata for this art­icle were pub­lished in J. Aust. Math. Soc. 28:4 (1970). MR 480271 Zbl 0387.​08004 article

W. D. Neu­mann: “Mul­ti­plic­ativ­ity of sig­na­ture,” J. Pure Ap­pl. Al­gebra 13 : 1 (1978), pp. 19–​31. Ded­ic­ated to the memory of George Cooke. MR 508726 Zbl 0404.​55008 article

W. D. Neu­mann and S. H. Wein­traub: “Four-man­i­folds con­struc­ted via plumb­ing,” Math. Ann. 238 : 1 (1978), pp. 71–​78. MR 510309 Zbl 0372.​57004 article

W. D. Neu­mann and F. Ray­mond: “Seifert man­i­folds, plumb­ing, \( \mu \)-in­vari­ant and ori­ent­a­tion re­vers­ing maps,” pp. 163–​196 in Al­geb­ra­ic and geo­met­ric to­po­logy: Pro­ceed­ings of a sym­posi­um held at Santa Bar­bara in hon­or of Ray­mond L. Wilder (Santa Bar­bara, CA, 25–29 Ju­ly 1977). Edi­ted by K. C. Mil­lett. Lec­ture Notes in Math­em­at­ics 664. Spring­er, 1978. MR 518415 Zbl 0401.​57018 incollection

W. D. Neu­mann: “Ho­mo­topy in­vari­ance of Atiyah in­vari­ants,” pp. 181–​188 in Al­geb­ra­ic and geo­met­ric to­po­logy (Stan­ford, CA, 2–21 Au­gust 1976), part 2. Edi­ted by R. J. Mil­gram. Pro­ceed­ings of Sym­po­sia in Pure Math­em­at­ics 32. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1978. MR 520534 Zbl 0399.​55013 incollection

W. D. Neu­mann: “Sig­na­ture re­lated in­vari­ants of man­i­folds, I: Mono­dromy and \( \gamma \)-in­vari­ants,” To­po­logy 18 : 2 (1979), pp. 147–​172. MR 544156 Zbl 0416.​57013 article

W. D. Neu­mann: “Nor­mal sub­groups with in­fin­ite cyc­lic quo­tient,” Math. Sci. 4 : 2 (1979), pp. 143–​148. MR 562003 Zbl 0414.​20030 article

W. D. Neu­mann: “Er­rata: ‘Mal’cev con­di­tions, spec­tra and Kro­neck­er product’,” J. Aus­tral. Math. Soc. Ser. A 28 : 4 (1979), pp. 510. Er­rata for an art­icle pub­lished in J. Aust. Math. Soc. 25:1 (1978). MR 562882 Zbl 0419.​08009 article

W. D. Neu­mann: “An in­vari­ant of plumbed ho­mo­logy spheres,” pp. 125–​144 in To­po­logy sym­posi­um (Sie­gen, Ger­many, 14–19 June 1979). Edi­ted by U. Kos­chorke and W. D. Neu­mann. Lec­ture Notes in Math­em­at­ics 788. Spring­er (Ber­lin), 1980. MR 585657 Zbl 0436.​57002 incollection

W. D. Neu­mann: “A cal­cu­lus for plumb­ing ap­plied to the to­po­logy of com­plex sur­face sin­gu­lar­it­ies and de­gen­er­at­ing com­plex curves,” Trans. Am. Math. Soc. 268 : 2 (1981), pp. 299–​344. MR 632532 Zbl 0546.​57002 article

D. Eis­en­bud, U. Hirsch, and W. Neu­mann: “Trans­verse fo­li­ations of Seifert bundles and self-homeo­morph­ism of the circle,” Com­ment. Math. Helv. 56 : 4 (1981), pp. 638–​660. MR 656217 Zbl 0516.​57015 article

W. D. Neu­mann: “Abeli­an cov­ers of quasi­ho­mo­gen­eous sur­face sin­gu­lar­it­ies,” pp. 233–​243 in Sin­gu­lar­it­ies (Ar­cata, CA, 20 Ju­ly–7 Au­gust 1981), part 2. Edi­ted by P. Or­lik. Pro­ceed­ings of Sym­po­sia in Pure Math­em­at­ics 40. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1983. MR 713252 Zbl 0519.​32010 incollection

W. D. Neu­mann: “Geo­metry of quasi­ho­mo­gen­eous sur­face sin­gu­lar­it­ies,” pp. 245–​258 in Sin­gu­lar­it­ies (Ar­cata, CA, 20 Ju­ly–7 Au­gust 1981), part 2. Edi­ted by P. Or­lik. Pro­ceed­ings of Sym­po­sia in Pure Math­em­at­ics 40. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1983. MR 713253 Zbl 0519.​32011 incollection

W. D. Neu­mann: “In­vari­ants of plane curve sin­gu­lar­it­ies,” pp. 223–​232 in Nœuds, tresses et sin­gu­lar­ités [Knots, braids and sin­gu­lar­it­ies] (Plans-sur-Bex, Switzer­land, 27 March–2 April 1982). Edi­ted by C. Weber. Mono­graph­ie de l’En­sei­gne­ment Mathématique 31. Uni­versity of Geneva, 1983. MR 728588 Zbl 0586.​14023 incollection

M. Jankins and W. D. Neu­mann: Lec­tures on Seifert man­i­folds. Bran­de­is Lec­ture Notes 2. Bran­de­is Uni­versity (Waltham, MA), 1983. MR 741334 book

M. Jankins and W. D. Neu­mann: “Ro­ta­tion num­bers of products of circle homeo­morph­isms,” Math. Ann. 271 : 3 (1985), pp. 381–​400. MR 787188 Zbl 0543.​57019 article

M. Jankins and W. Neu­mann: “Ho­mo­morph­isms of Fuch­sian groups to \( \textrm{PSL}(2,\textrm{R}) \),” Com­ment. Math. Helv. 60 : 3 (1985), pp. 480–​495. MR 814153 Zbl 0598.​57007 article

W. D. Neu­mann and D. Za­gi­er: “Volumes of hy­per­bol­ic three-man­i­folds,” To­po­logy 24 : 3 (1985), pp. 307–​332. MR 815482 Zbl 0589.​57015 article

D. Eis­en­bud and W. Neu­mann: Three-di­men­sion­al link the­ory and in­vari­ants of plane curve sin­gu­lar­it­ies. An­nals of Math­em­at­ics Stud­ies 110. Prin­ceton Uni­versity Press, 1985. MR 817982 Zbl 0628.​57002 book

W. D. Neu­mann and D. Za­gi­er: “A note on an in­vari­ant of Fin­tushel and Stern,” pp. 241–​244 in Geo­metry and to­po­logy (Col­lege Park, MD, 1983–1984). Edi­ted by J. C. Al­ex­an­der and J. L. Harer. Lec­ture Notes in Math­em­at­ics 1167. Spring­er, 1985. MR 827273 Zbl 0589.​57016 incollection

W. D. Neu­mann: “Spli­cing al­geb­ra­ic links,” pp. 349–​361 in Com­plex ana­lyt­ic sin­gu­lar­it­ies (Ibaraki, Ja­pan, 16–20 Ju­ly 1984). Edi­ted by T. Suwa and P. Wagreich. Ad­vanced Stud­ies in Pure Math­em­at­ics 8. North-Hol­land (Am­s­ter­dam), 1987. MR 894301 Zbl 0652.​32011 incollection

F. Ehlers, W. D. Neu­mann, and J. Scherk: “Links of sur­face sin­gu­lar­it­ies and CR space forms,” Com­ment. Math. Helv. 62 : 2 (1987), pp. 240–​264. In memory of Peter Scherk. MR 896096 Zbl 0626.​32032 article

W. Neu­mann and L. Rudolph: “Un­fold­ings in knot the­ory,” Math. Ann. 278 : 1–​4 (1987), pp. 409–​439. Ded­ic­ated to Friedrich Hirzebruch. A cor­ri­gendum to this art­icle was pub­lished in Math. Ann. 282:2 (1989). MR 909235 Zbl 0675.​57010 article

R. Bieri, W. D. Neu­mann, and R. Strebel: “A geo­met­ric in­vari­ant of dis­crete groups,” In­vent. Math. 90 : 3 (1987), pp. 451–​477. MR 914846 Zbl 0642.​57002 article

W. Neu­mann and L. Rudolph: “Cor­ri­gendum: ‘Un­fold­ings in knot the­ory’,” Math. Ann. 282 : 2 (1988), pp. 349–​351. Cor­ri­gendum to art­icle pub­lished in Math. Ann. 278:1–4 (1987). MR 963022 Zbl 0675.​57011 article

W. D. Neu­mann and L. Rudolph: “The en­hanced Mil­nor num­ber in high­er di­men­sions,” pp. 109–​121 in Dif­fer­en­tial to­po­logy (Sie­gen, Ger­many, 27 Ju­ly–1 Au­gust 1987). Lec­ture Notes in Math­em­at­ics 1350. Spring­er (Ber­lin), 1988. MR 979336 Zbl 0655.​57015 incollection

W. D. Neu­mann: “On bi­lin­ear forms rep­res­en­ted by trees,” Bull. Aust. Math. Soc. 40 : 2 (1989), pp. 303–​321. MR 1012837 Zbl 0686.​05018 article

W. D. Neu­mann: “Com­plex al­geb­ra­ic plane curves via their links at in­fin­ity,” In­vent. Math. 98 : 3 (1989), pp. 445–​489. MR 1022302 Zbl 0734.​57011 article

W. D. Neu­mann: “On the to­po­logy of curves in com­plex sur­faces,” pp. 117–​133 in To­po­lo­gic­al meth­ods in al­geb­ra­ic trans­form­a­tion groups (New Brun­swick, NJ, 4–8 April 1988). Edi­ted by H. Kraft, T. Pet­rie, and G. W. Schwarz. Pro­gress in Math­em­at­ics 80. Birkhäuser (Bo­ston), 1989. MR 1040860 Zbl 0715.​14025 incollection

W. Neu­mann and J. Wahl: “Cas­son in­vari­ant of links of sin­gu­lar­it­ies,” Com­ment. Math. Helv. 65 : 1 (1990), pp. 58–​78. MR 1036128 Zbl 0704.​57007 article

W. D. Neu­mann and L. Rudolph: “Dif­fer­ence in­dex of vec­tor­fields and the en­hanced Mil­nor num­ber,” To­po­logy 29 : 1 (1990), pp. 83–​100. MR 1046626 Zbl 0760.​57003 article

W. D. Neu­mann: “On in­ter­sec­tions of fi­nitely gen­er­ated sub­groups of free groups,” pp. 161–​170 in Groups: Can­berra 1989 (Can­berra, 25–29 Septem­ber 1989). Edi­ted by L. G. Ko­vacs. Lec­ture Notes in Math­em­at­ics 1456. Spring­er (Ber­lin), 1990. MR 1092229 Zbl 0722.​20016 incollection

W. D. Neu­mann and A. W. Re­id: “Am­al­gam­a­tion and the in­vari­ant trace field of a Klein­i­an group,” Math. Proc. Cam­bridge Philos. Soc. 109 : 3 (1991), pp. 509–​515. MR 1094749 Zbl 0728.​57009 article

R. Mey­er­hoff and W. D. Neu­mann: “An asymp­tot­ic for­mula for the eta in­vari­ants of hy­per­bol­ic 3-man­i­folds,” Com­ment. Math. Helv. 67 : 1 (1992), pp. 28–​46. MR 1144612 Zbl 0791.​57009 article

W. D. Neu­mann: “Asyn­chron­ous comb­ings of groups,” In­ter­nat. J. Al­gebra Com­put. 2 : 2 (1992), pp. 179–​185. MR 1176383 Zbl 0777.​20013 article

W. D. Neu­mann: “The fixed group of an auto­morph­ism of a word hy­per­bol­ic group is ra­tion­al,” In­vent. Math. 110 : 1 (1992), pp. 147–​150. MR 1181820 Zbl 0793.​20033 article

To­po­logy ’90: Pa­pers from the re­search semester in low-di­men­sion­al to­po­logy held at Ohio State Uni­versity (Colum­bus, OH, Feb­ru­ary–June 1990). Edi­ted by B. Apanasov, W. D. Neu­mann, A. W. Re­id, and L. Sieben­mann. Ohio State Uni­versity Math­em­at­ic­al Re­search In­sti­tute Pub­lic­a­tions 1. de Gruyter (Ber­lin), 1992. MR 1184397 Zbl 0747.​00024 book

W. D. Neu­mann: “Com­bin­at­or­ics of tri­an­gu­la­tions and the Chern–Si­mons in­vari­ant for hy­per­bol­ic 3-man­i­folds,” pp. 243–​271 in To­po­logy ’90: Pa­pers from the re­search semester in low-di­men­sion­al to­po­logy held at Ohio State Uni­versity (Colum­bus, OH, Feb­ru­ary–June 1990). Edi­ted by B. Apanasov, W. D. Neu­mann, A. W. Re­id, and L. Sieben­mann. Ohio State Uni­versity Math­em­at­ics Re­search In­sti­tute Pub­lic­a­tions 1. de Gruyter (Ber­lin), 1992. MR 1184415 Zbl 0768.​57006 incollection

W. D. Neu­mann and A. W. Re­id: “Arith­met­ic of hy­per­bol­ic man­i­folds,” pp. 273–​310 in To­po­logy ’90: Pa­pers from the re­search semester in low-di­men­sion­al to­po­logy held at Ohio State Uni­versity (Colum­bus, OH, Feb­ru­ary–June 1990). Edi­ted by B. Apanasov, W. D. Neu­mann, A. W. Re­id, and L. Sieben­mann. Ohio State Uni­versity Math­em­at­ics Re­search In­sti­tute Pub­lic­a­tions 1. de Gruyter (Ber­lin), 1992. MR 1184416 Zbl 0777.​57007 incollection

W. D. Neu­mann and A. W. Re­id: “Notes on Adams’ small volume or­bi­folds,” pp. 311–​314 in To­po­logy ’90: Pa­pers from the re­search semester in low-di­men­sion­al to­po­logy held at Ohio State Uni­versity (Colum­bus, OH, Feb­ru­ary–June 1990). Edi­ted by B. Apanasov, W. D. Neu­mann, A. W. Re­id, and L. Sieben­mann. Ohio State Uni­versity Math­em­at­ics Re­search In­sti­tute Pub­lic­a­tions 1. de Gruyter (Ber­lin), 1992. MR 1184417 Zbl 0773.​57009 incollection

W. D. Neu­mann and M. Sha­piro: “Equi­val­ent auto­mat­ic struc­tures and their bound­ar­ies,” Int. J. Al­gebra Com­put. 2 : 4 (1992), pp. 443–​469. MR 1189673 Zbl 0767.​20013 article

W. D. Neu­mann and A. W. Re­id: “Ri­gid­ity of cusps in de­form­a­tions of hy­per­bol­ic 3-or­bi­folds,” Math. Ann. 295 : 2 (1993), pp. 223–​237. MR 1202390 Zbl 0813.​57013 article

W. D. Neu­mann and L. V. Thanh: “On ir­reg­u­lar links at in­fin­ity of al­geb­ra­ic plane curves,” Math. Ann. 295 : 2 (1993), pp. 239–​244. MR 1202391 Zbl 0789.​14031 ArXiv alg-​geom/​9202008 article

W. D. Neu­mann and M. Sha­piro: “Auto­mat­ic struc­tures and bound­ar­ies for graphs of groups,” Int. J. Al­gebra Com­put. 4 : 4 (1994), pp. 591–​616. MR 1313129 Zbl 0832.​20051 ArXiv math/​9306205 article

W. D. Neu­mann and M. Sha­piro: “Auto­mat­ic struc­tures, ra­tion­al growth, and geo­met­ric­ally fi­nite hy­per­bol­ic groups,” In­vent. Math. 120 : 2 (1995), pp. 259–​287. MR 1329042 Zbl 0831.​20041 ArXiv math/​9401201 article

W. D. Neu­mann and J. Yang: “In­vari­ants from tri­an­gu­la­tions of hy­per­bol­ic 3-man­i­folds,” Elec­tron. Res. An­nounc. Am. Math. Soc. 1 : 2 (1995), pp. 72–​79. MR 1350682 Zbl 0851.​57013 article

W. D. Neu­mann and J. Yang: “Ra­tion­al­ity prob­lems for \( K \)-the­ory and Chern–Si­mons in­vari­ants of hy­per­bol­ic 3-man­i­folds,” En­sei­gn. Math. (2) 41 : 3–​4 (1995), pp. 281–​296. MR 1365848 Zbl 0861.​57022 article

W. D. Neu­mann: “Klein­i­an groups gen­er­ated by ro­ta­tions,” pp. 251–​256 in Groups (Pusan, Korea, 18–25 Au­gust 1994). Edi­ted by A. C. Kim and D. L. John­son. de Gruyter (Ber­lin), 1995. MR 1476967 Zbl 0872.​20045 ArXiv math/​9712228 incollection

W. D. Neu­mann and L. Reeves: “Reg­u­lar cocycles and bi­auto­mat­ic struc­tures,” Int. J. Al­gebra Com­put. 6 : 3 (1996), pp. 313–​324. MR 1404809 Zbl 0928.​20028 ArXiv math/​9411203 article

W. D. Neu­mann and M. Sha­piro: A short course in geo­met­ric group the­ory, 1996. on­line notes. Notes for the ANU Work­shop Janu­ary/Feb­ru­ary 1996. misc

W. D. Neu­mann: “Com­men­sur­ab­il­ity and vir­tu­al fibra­tion for graph man­i­folds,” To­po­logy 36 : 2 (1997), pp. 355–​378. MR 1415593 Zbl 0872.​57021 article

W. D. Neu­mann and L. Reeves: “Cent­ral ex­ten­sions of word hy­per­bol­ic groups,” Ann. Math. (2) 145 : 1 (January 1997), pp. 183–​192. MR 1432040 Zbl 0871.​20032 ArXiv math/​9507201 article

W. D. Neu­mann and M. Sha­piro: “Reg­u­lar geodes­ic nor­mal forms in vir­tu­ally abeli­an groups,” Bull. Aust. Math. Soc. 55 : 3 (1997), pp. 517–​519. MR 1456281 Zbl 0887.​20015 ArXiv math/​9702203 article

W. D. Neu­mann and G. A. Swarup: “Ca­non­ic­al de­com­pos­i­tions of 3-man­i­folds,” Geom. To­pol. 1 (1997), pp. 21–​40. MR 1469066 Zbl 0886.​57009 ArXiv math/​9712227 article

W. D. Neu­mann and J. Yang: Ra­tion­al­ity prob­lems for Chern–Si­mons in­vari­ants. Pre­print, December 1997. ArXiv math/​9712225 techreport

W. D. Neu­mann and P. Nor­bury: “Non­trivi­al ra­tion­al poly­no­mi­als in two vari­ables have re­du­cible fibres,” Bull. Aust. Math. Soc. 58 : 3 (1998), pp. 501–​503. MR 1662136 Zbl 0946.​14038 ArXiv math/​9805093 article

W. D. Neu­mann: “Hil­bert’s 3rd prob­lem and in­vari­ants of 3-man­i­folds,” pp. 383–​411 in The Ep­stein birth­day schrift. Edi­ted by I. Riv­in, C. Rourke, and C. Series. Geo­metry and To­po­logy Mono­graphs 1. Geo­metry and To­po­logy Pub­lish­ers (Cov­entry, UK), 1998. Ded­ic­ated to Dav­id Ep­stein on the oc­ca­sion of his 60th birth­day. MR 1668316 Zbl 0902.​57013 ArXiv math/​9712226 incollection

W. D. Neu­mann and J. Yang: “Bloch in­vari­ants of hy­per­bol­ic 3-man­i­folds,” Duke Math. J. 96 : 1 (1999), pp. 29–​59. MR 1663915 Zbl 0943.​57008 ArXiv math/​9712224 article

W. D. Neu­mann: “Con­way poly­no­mi­al of a fibered solv­able link,” J. Knot The­or. Ramif. 8 : 4 (1999), pp. 505–​509. MR 1697386 Zbl 0941.​57017 article

W. D. Neu­mann: “Ir­reg­u­lar links at in­fin­ity of com­plex af­fine plane curves,” Quart. J. Math. Ox­ford Ser. (2) 50 : 199 (1999), pp. 301–​320. MR 1706321 Zbl 0958.​32030 article

Geo­met­ric group the­ory down un­der (Can­berra, 14–19 Ju­ly 1996). Edi­ted by J. Cos­sey, C. F. Miller, III, W. D. Neu­mann, and M. Sha­piro. de Gruyter (Ber­lin), 1999. MR 1714835 Zbl 0910.​00040 book

C. F. Miller, III, W. D. Neu­mann, and G. A. Swarup: “Some ex­amples of hy­per­bol­ic groups,” pp. 195–​202 in Geo­met­ric group the­ory down un­der (Can­berra, 14–19 Ju­ly 1996). Edi­ted by J. Cos­sey, C. F. Miller, III, W. D. Neu­mann, and M. Sha­piro. de Gruyter (Ber­lin), 1999. MR 1714846 Zbl 0955.​20027 incollection

W. D. Neu­mann and M. Sha­piro: “Auto­mat­ic struc­tures on cent­ral ex­ten­sions,” pp. 261–​280 in Geo­met­ric group the­ory down un­der (Can­berra, 14–19 Ju­ly 1996). Edi­ted by J. Cos­sey, C. F. Miller, III, W. D. Neu­mann, and M. Sha­piro. de Gruyter (Ber­lin), 1999. MR 1714849 Zbl 1114.​20305 incollection

Low di­men­sion­al to­po­logy (Eger, Hun­gary, 29 Ju­ly–2 Au­gust 1996 and Bud­apest, 3–14 Au­gust 1998). Edi­ted by K. Böröczky, Jr., W. Neu­mann, and A. Stip­sicz. Bolyai So­ci­ety Math­em­at­ic­al Stud­ies 8. János Bolyai Math­em­at­ic­al So­ci­ety (Bud­apest), 1999. MR 1747267 Zbl 0938.​57002 book

W. D. Neu­mann: “Notes on geo­metry and 3-man­i­folds,” pp. 191–​267 in Low di­men­sion­al to­po­logy (Eger, Hun­gary, 29 Ju­ly–2 Au­gust 1996 and Bud­apest, 3–14 Au­gust 1998). Edi­ted by K. Böröczky, Jr., W. Neu­mann, and A. Stip­sicz. Bolyai So­ci­ety Math­em­at­ic­al Stud­ies 8. János Bolyai Math­em­at­ic­al So­ci­ety (Bud­apest), 1999. With ap­pen­dices by Paul Nor­bury. MR 1747270 Zbl 0944.​57012 incollection

W. D. Neu­mann and P. Nor­bury: “Van­ish­ing cycles and mono­dromy of com­plex poly­no­mi­als,” Duke Math. J. 101 : 3 (2000), pp. 487–​497. MR 1740685 Zbl 0978.​32030 article

D. Coulson, O. A. Good­man, C. D. Hodg­son, and W. D. Neu­mann: “Com­put­ing arith­met­ic in­vari­ants of 3-man­i­folds,” Ex­per­i­ment. Math. 9 : 1 (2000), pp. 127–​152. MR 1758805 Zbl 1002.​57044 article

W. D. Neu­mann and P. Nor­bury: “Un­fold­ing poly­no­mi­al maps at in­fin­ity,” Math. Ann. 318 : 1 (2000), pp. 149–​180. MR 1785580 Zbl 1005.​32021 ArXiv math/​9910054 article

W. D. Neu­mann and P. G. Wightwick: “Al­gorithms for poly­no­mi­als in two vari­ables,” pp. 219–​235 in Com­bin­at­or­i­al and com­pu­ta­tion­al al­gebra (Hong Kong, 24–29 May 1999). Edi­ted by K. Y. Chan, A. A. Mikhalev, M.-K. Siu, J.-T. Yu, and E. I. Zel­man­ov. Con­tem­por­ary Math­em­at­ics 264. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 2000. MR 1800698 Zbl 1022.​14019 ArXiv math/​9911104 incollection

W. D. Neu­mann: “Im­mersed and vir­tu­ally em­bed­ded \( \pi_1 \)-in­ject­ive sur­faces in graph man­i­folds,” Al­gebr. Geom. To­pol. 1 : 1 (2001), pp. 411–​426. MR 1852764 Zbl 0979.​57007 ArXiv math/​9901085 article

W. D. Neu­mann and J. Wahl: “Uni­ver­sal Abeli­an cov­ers of sur­face sin­gu­lar­it­ies,” pp. 181–​190 in Trends in sin­gu­lar­it­ies. Edi­ted by A. Libgober and M. Tibăr. Trends in Math­em­at­ics. Birkhäuser (Basel), 2002. MR 1900786 Zbl 1072.​14502 ArXiv math/​0110167 incollection

W. D. Neu­mann and P. Nor­bury: “Ra­tion­al poly­no­mi­als of simple type,” Pac. J. Math. 204 : 1 (2002), pp. 177–​207. MR 1905197 Zbl 1055.​14062 ArXiv math/​0008080 article

N. Brady, J. P. Mc­Cam­mond, B. Mühl­herr, and W. D. Neu­mann: “Ri­gid­ity of Coxeter groups and Artin groups,” pp. 91–​109 in Pro­ceed­ings of the con­fer­ence on geo­met­ric and com­bin­at­or­i­al group the­ory, part 1 (Haifa, Is­rael, 13–21 June 2000), published as Geom. Ded­icata 94 : 1. Issue edi­ted by L. Mosh­er and M. Sageev. Spring­er Neth­er­lands (Dordrecht), 2002. MR 1950875 Zbl 1031.​20035 incollection

W. D. Neu­mann and P. Nor­bury: “The Orevkov in­vari­ant of an af­fine plane curve,” Trans. Am. Math. Soc. 355 : 2 (2003), pp. 519–​538. MR 1932711 Zbl 1056.​14084 ArXiv math/​0110286 article

W. D. Neu­mann and J. Wahl: “Uni­ver­sal abeli­an cov­ers of quo­tient-cusps,” Math. Ann. 326 : 1 (2003), pp. 75–​93. MR 1981612 Zbl 1032.​14010 ArXiv math/​0101251 article

J. H. Man­ton and W. D. Neu­mann: “Totally blind chan­nel iden­ti­fic­a­tion by ex­ploit­ing guard in­ter­vals,” Sys­tems Con­trol Lett. 48 : 2 (2003), pp. 113–​119. MR 2011871 Zbl 1134.​94303 article

W. D. Neu­mann: “To­po­logy of hy­per­sur­face sin­gu­lar­it­ies,” pp. 727–​736 in E. Kähler: Math­em­at­ische werke [Math­em­at­ic­al works]. Edi­ted by R. Berndt and O. Riemenschneider. Wal­ter de Gruyter (Ber­lin), 2003. Zbl 1365.​14053 ArXiv 1706.​04386 incollection

W. D. Neu­mann: “Ex­ten­ded Bloch group and the Chee­ger–Chern–Si­mons class,” Geom. To­pol. 8 : 1 (2004), pp. 413–​474. MR 2033484 Zbl 1053.​57010 ArXiv math/​0307092 article

J. H. Man­ton, W. D. Neu­mann, and P. T. Nor­bury: “On the al­geb­ra­ic iden­ti­fi­ab­il­ity of fi­nite im­pulse re­sponse chan­nels driv­en by lin­early pre­coded sig­nals,” Sys­tems Con­trol Lett. 54 : 2 (2005), pp. 125–​134. MR 2109579 Zbl 1129.​93358 article

W. D. Neu­mann and J. Wahl: “Com­plete in­ter­sec­tion sin­gu­lar­it­ies of splice type as uni­ver­sal abeli­an cov­ers,” Geom. To­pol. 9 : 2 (2005), pp. 699–​755. MR 2140991 Zbl 1087.​32017 ArXiv math/​0407287 article

W. D. Neu­mann and J. Wahl: “Com­plex sur­face sin­gu­lar­it­ies with in­teg­ral ho­mo­logy sphere links,” Geom. To­pol. 9 : 2 (2005), pp. 757–​811. MR 2140992 Zbl 1087.​32018 ArXiv math/​0301165 article

W. M. Gold­man and W. D. Neu­mann: “Ho­mo­lo­gic­al ac­tion of the mod­u­lar group on some cu­bic mod­uli spaces,” Math. Res. Lett. 12 : 4 (2005), pp. 575–​591. MR 2155233 Zbl 1087.​57001 ArXiv math/​0402039 article

W. D. Neu­mann: “Graph 3-man­i­folds, splice dia­grams, sin­gu­lar­it­ies,” pp. 787–​817 in Sin­gu­lar­ity the­ory (Mar­seille, France, 24 Janu­ary–25 Feb­ru­ary 2005). Edi­ted by D. Chéni­ot, N. Dutertre, C. Mur­olo, D. Trot­man, and A. Pichon. World Sci­entif­ic (Hack­en­sack, NJ), 2007. Con­fer­ence ded­ic­ated to Jean-Paul Brasse­let on his 60th birth­day. MR 2342940 Zbl 1155.​32019 incollection

W. D. Neu­mann and A. Pichon: “Com­plex ana­lyt­ic real­iz­a­tion of links,” pp. 231–​238 in In­tel­li­gence of low di­men­sion­al to­po­logy 2006 (Hiroshi­ma, Ja­pan, 22–26 Ju­ly 2006). Edi­ted by J. S. Carter, S. Ka­mada, L. H. Kauff­man, A. Kawau­chi, and T. Kohno. Series on Knots and Everything 40. World Sci­entif­ic (Hack­en­sack, NJ), 2007. MR 2371730 Zbl 1146.​32013 ArXiv math/​0610348 incollection

C. J. Lein­inger, D. B. McReyn­olds, W. D. Neu­mann, and A. W. Re­id: “Length and ei­gen­value equi­val­ence,” Int. Math. Res. Not. 2007 : 24 (2007). Art­icle no. rn­m135, 24 pp. MR 2377017 Zbl 1158.​53032 ArXiv math/​0606343 article

W. D. Neu­mann: A short proof that pos­it­ive gen­er­a­tion im­plies the Hanna Neu­mann Con­jec­ture. Pre­print, February 2007. ArXiv math/​0702395 techreport

J. A. Behr­stock and W. D. Neu­mann: “Quasi-iso­met­ric clas­si­fic­a­tion of graph man­i­fold groups,” Duke Math. J. 141 : 2 (February 2008), pp. 217–​240. MR 2376814 Zbl 1194.​20045 ArXiv math/​0604042 article

L. Birbrair, A. Fernandes, and W. D. Neu­mann: “Bi-Lipschitz geo­metry of weighted ho­mo­gen­eous sur­face sin­gu­lar­it­ies,” Math. Ann. 342 : 1 (2008), pp. 139–​144. MR 2415318 Zbl 1153.​14003 ArXiv 0704.​2041 article

S. Nel­son and W. D. Neu­mann: “The 2-gen­er­al­ized knot group de­term­ines the knot,” Com­mun. Con­temp. Math. 10 : supp01 (2008), pp. 843–​847. To the memory of Xiao-Song Lin. MR 2468367 Zbl 1176.​57012 ArXiv 0804.​0807 article

W. D. Neu­mann and J. Yang: \( \mu \)-con­stancy does not im­ply con­stant bi-Lipschitz type. Pre­print, September 2008. ArXiv 0809.​0845 techreport

J. A. Behr­stock, T. Januszkiewicz, and W. D. Neu­mann: “Com­men­sur­ab­il­ity and QI clas­si­fic­a­tion of free products of fi­nitely gen­er­ated abeli­an groups,” Proc. Am. Math. Soc. 137 : 3 (2009), pp. 811–​813. MR 2457418 Zbl 1183.​20025 ArXiv 0712.​0569 article

L. Birbrair, A. Fernandes, and W. D. Neu­mann: “Bi-Lipschitz geo­metry of com­plex sur­face sin­gu­lar­it­ies,” Geom. Ded­icata 139 (2009), pp. 259–​267. MR 2481850 Zbl 1164.​32005 ArXiv 0804.​0194 article

W. D. Neu­mann and J. Wahl: “The end curve the­or­em for nor­mal com­plex sur­face sin­gu­lar­it­ies,” J. Eur. Math. Soc. 12 : 2 (2010), pp. 471–​503. MR 2608949 Zbl 1204.​32019 ArXiv 0804.​4644 article

J. A. Behr­stock, T. Januszkiewicz, and W. D. Neu­mann: “Quasi-iso­met­ric clas­si­fic­a­tion of some high di­men­sion­al right-angled Artin groups,” Groups Geom. Dyn. 4 : 4 (2010), pp. 681–​692. MR 2727658 Zbl 1226.​20033 ArXiv 0906.​4519 article

W. D. Neu­mann: “On Leighton’s graph cov­er­ing the­or­em,” Groups Geom. Dyn. 4 : 4 (2010), pp. 863–​872. MR 2727669 Zbl 1210.​05113 ArXiv 0906.​2496 article

L. Birbrair, A. Fernandes, and W. D. Neu­mann: “Sep­ar­at­ing sets, met­ric tan­gent cone and ap­plic­a­tions for com­plex al­geb­ra­ic germs,” Se­lecta Math. (N.S.) 16 : 3 (2010), pp. 377–​391. MR 2734336 Zbl 1200.​14010 ArXiv 0905.​4312 article

L. Birbrair, A. Fernandes, and W. D. Neu­mann: “On nor­mal em­bed­ding of com­plex al­geb­ra­ic sur­faces,” pp. 17–​22 in Real and com­plex sin­gu­lar­it­ies (São Car­los, Brazil, 27 Ju­ly–2 Au­gust 2008). Edi­ted by M. Manoel, M. C. Romero Fuster, and C. T. C. Wall. Lon­don Math­em­at­ic­al So­ci­ety Lec­ture Note Series 380. Cam­bridge Uni­versity Press, 2010. Ded­ic­ated to our friends Maria (Cid­inha) Ru­as and Terry Gaffney in con­nec­tion to their 60th birth­days. MR 2759086 Zbl 1215.​14057 ArXiv 0901.​0030 incollection

Low-di­men­sion­al to­po­logy and num­ber the­ory (Ober­wolfach, Ger­many, 15–21 Au­gust 2012), published as Ober­wolfach Rep. 7 : 3. Issue edi­ted by P. E. Gun­nells, W. D. Neu­mann, A. S. Sikora, and D. B. Za­gi­er. EMS Press (Ber­lin), 2010. MR 3156734 Zbl 1209.​00056 book

A. Né­methi, W. D. Neu­mann, and A. Pichon: “Prin­cip­al ana­lyt­ic link the­ory in ho­mo­logy sphere links,” pp. 377–​387 in To­po­logy of al­geb­ra­ic vari­et­ies and sin­gu­lar­it­ies: In­vited pa­pers of the con­fer­ence in hon­or of Anato­ly Libgober’s 60th birth­day (Jaca, Spain, 22–26 June 2009). Edi­ted by J. I. Cogol­ludo-Agustín and E. Hironaka. Con­tem­por­ary Math­em­at­ics 538. Amer­ic­an Math­em­at­ic­al So­ci­ety, 2011. MR 2777831 Zbl 1272.​32029 ArXiv 0909.​1348 incollection

W. D. Neu­mann: “Real­iz­ing arith­met­ic in­vari­ants of hy­per­bol­ic 3-man­i­folds,” pp. 233–​246 in In­ter­ac­tions between hy­per­bol­ic geo­metry, quantum to­po­logy and num­ber the­ory (New York, 3–13 and 15–19 June 2009). Edi­ted by A. Cham­pan­erkar, O. Das­bach, E. Kalf­a­gi­anni, I. Kof­man, W. Neu­mann, and N. Stoltz­fus. Con­tem­por­ary Math­em­at­ics 541. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 2011. MR 2796636 Zbl 1237.​57013 ArXiv 1108.​0062 incollection

In­ter­ac­tions between hy­per­bol­ic geo­metry, quantum to­po­logy and num­ber the­ory (New York, 3–13 and 15–19 June 2009). Edi­ted by A. Cham­pan­erkar, O. Das­bach, E. Kalf­a­gi­anni, I. Kof­man, W. Neu­mann, and N. Stoltz­fus. Con­tem­por­ary Math­em­at­ics 541. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 2011. MR 2797089 Zbl 1214.​00022 book

A. Cham­pan­erkar, D. Futer, I. Kof­man, W. Neu­mann, and J. S. Pur­cell: “Volume bounds for gen­er­al­ized twis­ted tor­us links,” Math. Res. Lett. 18 : 6 (2011), pp. 1097–​1120. MR 2915470 Zbl 1271.​57008 ArXiv 1007.​2932 article

J. A. Behr­stock and W. D. Neu­mann: “Quasi-iso­met­ric clas­si­fic­a­tion of non-geo­met­ric 3-man­i­fold groups,” J. Reine An­gew. Math. 2012 : 669 (2012), pp. 101–​120. MR 2980453 Zbl 1252.​57001 ArXiv 1001.​0212 article

W. D. Neu­mann and A. Pichon: Lipschitz geo­metry of com­plex sur­faces: Ana­lyt­ic in­vari­ants and equisin­gu­lar­ity. Technical report, November 2012. ArXiv 1211.​4897 techreport

L. Birbrair, W. D. Neu­mann, and A. Pichon: “The thick-thin de­com­pos­i­tion and the bilipschitz clas­si­fic­a­tion of nor­mal sur­face sin­gu­lar­it­ies,” Acta Math. 212 : 2 (2014), pp. 199–​256. MR 3207758 Zbl 1303.​14016 ArXiv 1105.​3327 article

L. Birbrair, A. Fernandes, V. Grand­jean, and D. O’Shea: “Chok­ing horns in Lipschitz geo­metry of com­plex al­geb­ra­ic vari­et­ies,” J. Geom. Anal. 24 : 4 (2014), pp. 1971–​1981. Ap­pendix by Wal­ter D. Neu­mann. MR 3261728 Zbl 1307.​14003 article

W. D. Neu­mann and A. Pichon: “Lipschitz geo­metry of com­plex curves,” J. Sin­gul. 10 (2014), pp. 225–​234. MR 3300297 Zbl 1323.​14003 ArXiv 1302.​1138 article

Low-di­men­sion­al to­po­logy and num­ber the­ory (Ober­wolfach, Ger­many, 17–23 Au­gust 2014), published as Ober­wolfach Rep. 11 : 3. Issue edi­ted by P. E. Gun­nells, W. D. Neu­mann, A. S. Sikora, and D. B. Za­gi­er. EMS Press (Ber­lin), 2014. MR 3444214 Zbl 1349.​00178 book

W. D. Neu­mann and A. Ts­vi­etkova: “In­ter­cusp geodesics and the in­vari­ant trace field of hy­per­bol­ic 3-man­i­folds,” Proc. Am. Math. Soc. 144 : 2 (2016), pp. 887–​896. MR 3430862 Zbl 1360.​57020 ArXiv 1402.​5582 article

W. D. Neu­mann and A. Pichon: “Lipschitz geo­metry does not de­term­ine em­bed­ded to­po­lo­gic­al type,” pp. 183–​195 in Sin­gu­lar­it­ies in geo­metry, to­po­logy, fo­li­ations and dy­nam­ics: A cel­eb­ra­tion of the 60th birth­day of José Seade (Mérida, Mex­ico, 8–19 Decem­ber 2014). Edi­ted by J. L. Cis­ner­os-Mo­lina, D. Tráng Lê, M. Oka, and J. Snoussi. Trends in Math­em­at­ics. Birkhäuser (Cham, Switzer­land), 2017. Ded­ic­ated to José Seade for a great oc­ca­sion. Happy birth­day, Pepe. MR 3706220 Zbl 1426.​14003 ArXiv 1506.​03841 incollection

Low-di­men­sion­al to­po­logy and num­ber the­ory (Ober­wolfach, Ger­many, 20–26 Au­gust 2017), published as Ober­wolfach Rep. 14 : 3. Issue edi­ted by P. E. Gun­nells, W. D. Neu­mann, A. S. Sikora, and D. B. Za­gi­er. EMS Press (Ber­lin), 2017. MR 3826628 Zbl 1394.​00015 book

W. D. Neu­mann: Non-iso­morph­ism of cat­egor­ies of al­geb­ras. Pre­print, August 2018. ArXiv 1808.​06242 techreport

A. Fernandes and J. E. Sam­paio: “Tan­gent cones of Lipschitz nor­mally em­bed­ded sets are Lipschitz nor­mally em­bed­ded,” Int. Math. Res. Not. 2019 : 15 (August 2019), pp. 4880–​4897. Ap­pendix by Anne Pichon and Wal­ter D. Neu­mann. MR 3988673 Zbl 1457.​32014 ArXiv 1705.​00038 article

W. D. Neu­mann, H. M. Ped­er­sen, and A. Pichon: “A char­ac­ter­iz­a­tion of Lipschitz nor­mally em­bed­ded sur­face sin­gu­lar­it­ies,” J. Lond. Math. Soc. (2) 101 : 2 (2020), pp. 612–​640. MR 4093968 Zbl 1441.​14015 ArXiv 1806.​11240 article

W. D. Neu­mann, H. M. Ped­er­sen, and A. Pichon: “Min­im­al sur­face sin­gu­lar­it­ies are Lipschitz nor­mally em­bed­ded,” J. Lond. Math. Soc. (2) 101 : 2 (2020), pp. 641–​658. MR 4093969 Zbl 1441.​14016 ArXiv 1503.​03301 article

In­tro­duc­tion to Lipschitz geo­metry of sin­gu­lar­it­ies (Cuerna­vaca, Mex­ico, 11–22 June 2018). Edi­ted by W. Neu­mann and A. Pichon. Lec­ture Notes in Math­em­at­ics 2280. Spring­er (Cham, Switzer­land), 2020. MR 4200092 Zbl 1456.​58002 book

W. D. Neu­mann: “3-man­i­folds and links of sin­gu­lar­it­ies,” pp. 73–​86 in In­tro­duc­tion to Lipschitz geo­metry of sin­gu­lar­it­ies (Cuerna­vaca, Mex­ico, 11–22 June 2018). Edi­ted by W. Neu­mann and A. Pichon. Lec­ture Notes in Math­em­at­ics 2280. Spring­er (Cham, Switzer­land), 2020. MR 4200095 Zbl 1457.​32071 incollection

W. D. Neu­mann and J. Wahl: “Or­bi­fold splice quo­tients and log cov­ers of sur­face pairs,” J. Sin­gul. 23 (2021), pp. 151–​169. MR 4304520 Zbl 07407803 ArXiv 2011.​09077 article