**Organization**

- Together with Nils Matthes I organized the
**Japan Europe Number Theory Exchange Seminar**. - I was co-organizer of the
**Computing Multiple Zeta Seminar**in Spring & Fall 2022. - I organized the
**Lecture series: An algebraic approach to multiple q-zeta values**in February 2023. - I organized the
**Lecture series: Formalization of multiple Eisenstein series**in June 2023 (Kyushu University).

**Seminars, Conferences & Workshops**

**2023**

Lecture series given together with Annika Burmester (University of Bielefeld).

**2022**

Talk given: Formal quasimodular forms and formal multiple Eisenstein series

Talk given: The zoo of multiple Eisenstein series.

Lecture series given.

Talk given: Connecting modular forms and multiple zeta values via combinatorial multiple Eisenstein series.

**2021**

Talk given: Finite multiple zeta values.

Lectures given: Polya's four step problem solving method & Mathematics in daily life and the wonderful(?) world of artificial intelligence

Talk given: 多重ゼータ値のq類似および形式的な二重アイゼンシュタイン空間の実現.

Talk given: Formal multiple Eisenstein series and formal multiple zeta values.

Talk given: Formal multiple Eisenstein series.

Talk given: Formal quasi-modular forms.

**2020**

Talk given: A variant of the double shuffle relations and quasi modular forms.

Talk given: 多重ゼータ値とそのモジュラー形式との関係 (Multiple zeta values and their relationship to modular forms).

Talk given: Multiple Eisenstein series and their Fourier coefficients.

Talk given: Combinatorial multiple Eisenstein series

Talk given: q-double zeta values and modular forms

2 Talks given: Generalized double shuffle equations for (q-)multiple zeta values

**2019**

Talk given: Generalized double shuffle equations in depth two and quasi modular forms.

Talk given: 有限多重調和q級数の1のベキ根での値と有限および対称多重ゼータ値.

Talk given: Multiple harmonic q-series at roots of unity and their connection to finite & symmetric multiple zeta values.

Talk given: Sum/Some formulas for Schur multiple zeta values.

Talk given: Multiple harmonic q-series at roots of unity and their connection to finite & symmetric multiple zeta values.

Talk given: Modular forms and multiple zeta values.

**2018**

Talk given: Numbers, infinite sums and multiple zeta values

Talk given: Numbers, infinite sums and their appearences in daily life

Talk given: Modular forms and q-analogues of modified double zeta values.

Talk given: Modular forms and q-analogues of modified double zeta values.

Talk given: Modular forms and q-analogues of modified double zeta values.

Talk given: Multiple harmonic q-series at roots of unity and their connection to finite & symmetrized multiple zeta values.

Talk given: Checkerboard style Schur multiple zeta values.

Talk given: Multiple harmonic q-series at roots of unity and finite & symmetrized multiple zeta values.

**2017**

Talk given: Multiple harmonic q-series at primitive roots of unity and finite multiple zeta values

Talk given: A simultaneous q-analogue of finite and symmetrized multiple zeta values.

Talk given: Cyclotomic analogues of finite multiple zeta values.

Talk given: Derivatives of q-analogues of multiple zeta values.

Talk given: Interpolated Schur multiple zeta values.

**2016**

Talk given: Interpolated Schur multiple zeta values.

Talk given: Interpolated Schur multiple zeta values.

Talk given: The double shuffle structure of certain q-analogues of multiple zeta values and the connection to modular forms.

**2015**

Talk given: A combinatorial approach to classical modular forms inspired by multiple zeta values.

Talk given: Multiple zeta values and regularized multiple Eisenstein series.

Talk given: Multiple zeta values and regularized multiple Eisenstein series.

Talk given: Multiple zeta values and multiple Eisenstein series.

**2014**

Talk given: Shuffle regularized multiple Eisenstein series and the Goncharov coproduct.

Talk given: Shuffle regularized multiple Eisenstein series and the Goncharov coproduct.

Talk given: Generating series of multiple divisor sums and other interesting q-series.

Talk given: Generating series of multiple divisor sums and other interesting q-series.

**2013**

Talk given: Multiple divisor functions, their algebraic structure and the relation to multiple zeta values.

Talk given: Multiple Eisenstein series, their Fourier expansions and multiple divisor functions.

Talk given: The algebra of multiple divisor functions and applications to multiple zeta values.

**2012**

Talk given: Multiple Eisenstein series.

Talk given: Multiple Eisenstein series.

Talk given: Multiple Eisenstein series.

**2011**

**2008-2016**