分野別セミナー

The linearised double shuffle Lie algebra, whose elements are polynomials satisfying some functional equations, conjecturally describes the algebraic structure of multiple zeta values. The relations in depth two for this Lie algebra are given by period polynomials associated with modular forms for SL_2(Z). We show that tensor products of period polynomials describe the relations in depth two in a Lie algebra related to multiple q-zeta values.