Winter Braids XII

Table of contents

Participants & Programme
p. 1-6
An invitation to big mapping class groups
Federica Fanoni
Talk no. 1, 18 p.
Positive braids and concordance
Peter Feller
Talk no. 2, 20 p.
The K(π,1) conjecture for Artin groups of spherical type
Giovanni Paolini
Talk no. 3, 11 p.