Celebratio Mathematica

Joan S. Birman

Correspondence with Dennis Johnson

Works connected to Dennis Lee Johnson

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D. John­son: Let­ter to J. Birman, un­dated. About sim­pli­fic­a­tions to proofs (based on phone call with Joan). misc

D. John­son: Let­ter to J. Birman, un­dated. About pa­per identi­fy­ing the ker­nel of one of “Joan’s” ho­mo­morph­isms. misc

D. John­son: Let­ter to J. Birman, un­dated. About pa­per enu­mer­at­ing \( \mathbb{Z}_2 \) maps, proof that all the 4-in­ter­sec­tion cases re­duce, and ma­ter­i­al on in­ter­sec­tion the­ory. misc

D. John­son: Let­ter to J. Birman, un­dated. About us­ing re­la­tions in \( \mathcal{I} \) to get sym­met­ric ho­mo­logy spheres and new pa­per with de­scrip­tion of \( \mathcal{I}/\mathcal{C} \). misc

D. John­son: Let­ter to J. Birman of 10 March 1977. Short de­scrip­tion of ma­chinery to be used in forth­com­ing pa­per. misc

D. John­son: Let­ter to J. Birman, un­dated. About pa­per on tor­sion of maps in \( \mathcal{I} \). misc

D. John­son: Notes for J. Birman, un­dated. About the space of Cas­son ho­mo­morph­isms for a sur­face \( K_{g,1} \). misc