3 papers
math.QA2026
An -action on the uri Lie algebra
Henrik Bachmann
We construct an -action by derivations on the Lie algebra of swap invariant alternil bimoulds with the uri bracket of Kühn and Schneps. This Lie alge…
math.NT2026
The -algebra structure of multiple Eisenstein series
Henrik Bachmann, Hayato Kanno
We prove that the algebra of multiple Eisenstein series is an -algebra. In particular, we show that it is graded by weight, which also holds after taking complex l…
math.NT2026
Relations and Derivatives of Multiple Eisenstein Series
Henrik Bachmann, Hayato Kanno, Takumi Maesaka
In this paper, we study multiple Eisenstein series, which build a natural bridge between the theory of multiple zeta values and modular forms. We prove a large family of relations…