50 citations · 108 across the 18 of their papers we have counts for
5 papers · 1 filter
Chow rings of stacks of prestable curves I
Younghan Bae, Johannes Schmitt
We study the Chow ring of the moduli stack of prestable curves and define the notion of tautological classes on this stack. We extend formulas for intersection…
Detecting and Counting Small Subgraphs, and Evaluating a Parameterized Tutte Polynomial: Lower Bounds via Toroidal Grids and Cayley Graph Expanders
Marc Roth, Johannes Schmitt, Philip Wellnitz
Given a graph property , we consider the problem , where the input is a pair of a graph and a positive integer , and the task is to decide whether $G…
Counting Small Induced Subgraphs Satisfying Monotone Properties
Marc Roth, Johannes Schmitt, Philip Wellnitz
Given a graph property , the problem asks, on input a graph and a positive integer , to compute the number of induced subgraphs of size in …
Pixton's formula and Abel-Jacobi theory on the Picard stack
Younghan Bae, David Holmes, Rahul Pandharipande +2
Let be a vector of integers with . By partial resolution of the classical Abel-Jacobi map, we construct a universal twisted double ramifica…
admcycles -- a Sage package for calculations in the tautological ring of the moduli space of stable curves
Vincent Delecroix, Johannes Schmitt, Jason van Zelm
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…