Celebratio Mathematica

Thomas “Tom” Lig­gett, a world-renowned prob­ab­il­ist, passed away on May 12, 2020. Read­ers may click on the PDF link at top (right) to read the trib­ute to his life and work that ap­peared in the Janu­ary 2021 is­sue of No­tices of the Amer­ic­an Math­em­at­ic­al So­ci­ety. Tom was be­loved by stu­dents and col­leagues for his im­mense math­em­at­ic­al gifts and for the ex­cep­tion­al grace, pre­ci­sion and good judge­ment he brought to his many aca­dem­ic ob­lig­a­tions.

We are grate­ful to the AMS and to the in­di­vidu­al con­trib­ut­ors for their per­mis­sion to in­clude that trib­ute in this volume.

Sheila New­bery
Man­aging Ed­it­or