Johan Alm: The Grothendieck-Teichmueller Lie algebra and Brown's dihedral moduli spaces
Time: Mon 2018-05-28 13.15 - 15.00
Location: Room 16, House 5, Kräftriket, Department of Mathematics, Stockholm University
Participating: Johan Alm (SU)
ABSTRACT : We shall present our recently announced preprint, proving that the degree zero operadic Hochschild cohomology of the homology operad of Francis Brown's dihedral moduli spaces is the Grothendieck-Teichmueller Lie algebra plus two classes, and discuss how the result relates to multiple zeta values and the relative non-formality of the framed little-disks operad.