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Cowen-Douglas operators and dominating sets

- Joerg Eschmeier, Johannes Schmitt
- Mathematics
- 1 August 2014

Counting Induced Subgraphs: An Algebraic Approach to #W[1]-hardness

- Julian Dörfler, M. Roth, Johannes Schmitt, Philip Wellnitz
- Mathematics, Computer Science
- MFCS
- 1 April 2019

TLDR

Multiplicativity of the double ramification cycle

- David Holmes, A. Pixton, Johannes Schmitt
- Mathematics
- 1 November 2017

The double ramification cycle satisfies a basic multiplicative relation DRC(a).DRC(b) = DRC(a).DRC(a + b) over the locus of compact-type curves, but this relation fails in the Chow ring of the moduli… Expand

Intersections of loci of admissible covers with tautological classes

- Johannes Schmitt, J. V. Zelm
- Mathematics
- 17 August 2018

For a finite group $G$, let $\H_{g,G,\xi}$ be the stack of admissible $G$-covers $C\to D$ of stable curves with ramification data $\xi$, $g(C)=g$ and $g(D)=g'$. There are source and target morphisms… Expand

Tevelev degrees and Hurwitz moduli spaces

- Alessio Cela, R. Pandharipande, Johannes Schmitt
- Mathematics
- 25 March 2021

We interpret the degrees which arise in Tevelev’s study of scattering amplitudes in terms of moduli spaces of Hurwitz covers. Via excess intersection theory, the boundary geometry of the Hurwitz… Expand

admcycles -- a Sage package for calculations in the tautological ring of the moduli space of stable curves.

- V. Delecroix, Johannes Schmitt, J. V. Zelm
- Mathematics
- 5 February 2020

The tautological ring of the moduli space of stable curves has been studied extensively in the last decades. We present a SageMath implementation of many core features of this ring. This includes… Expand

Counting Induced Subgraphs: A Topological Approach to #W[1]-hardness

- M. Roth, Johannes Schmitt
- Computer Science, Mathematics
- IPEC
- 5 July 2018

TLDR

Counting Small Induced Subgraphs Satisfying Monotone Properties

- M. Roth, Johannes Schmitt, Philip Wellnitz
- Computer Science, Mathematics
- IEEE 61st Annual Symposium on Foundations of…
- 14 April 2020

TLDR

Dimension theory of the moduli space of twisted $k$-differentials

- Johannes Schmitt
- Mathematics
- 28 July 2016

In this note we extend the dimension theory for the spaces $\widetilde{\mathcal H}_g^k(\mu)$ of twisted $k$-differentials defined by Farkas and Pandharipande in [FP15] to the case $k>1$. In… Expand

Counting Induced Subgraphs: A Topological Approach to #W[1]-hardness

- M. Roth, Johannes Schmitt
- Medicine, Physics
- Algorithmica
- 22 January 2020

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