collaborators

8 papers

math.AT2026

Topological symmetric and braid homologies

Gabriel Angelini-Knoll, David Chan, Teena Gerhardt +2

We identify topological symmetric homology as the free -algebra on an -algebra and topological braid homology as the free -algebra on…

math.AT2026

Parametrized scissors congruence -theory of manifolds and cobordism categories

Mona Merling, George Raptis, Julia Semikina

We introduce a parametrized version of scissors congruence -theory of manifolds with tangential structure, which includes a topologized version of the scissors congruence -th…

math.AT2026

Topological homology of rings with twisted -action

Gabriel Angelini-Knoll, Mona Merling, Maximilien Péroux

We construct topological -homology for rings with twisted -action. Here a ring with twisted -action is a common generalization of a ring with anti-involution and a ring…

math.KT2025

Algebraic -theory for squares categories

Jonathan Campbell, Josefien Kuijper, Mona Merling +1

In this paper we introduce a new formalism for -theory, called squares -theory. This formalism allows us to simultaneously generalize the usual three-term relation $[B] = [A]…

math.AT2025

Scissors congruence K-theory for equivariant manifolds

Mona Merling, Ming Ng, Julia Semikina +2

We introduce a scissors congruence -theory spectrum which lifts the equivariant scissors congruence groups for compact -manifolds with boundary, and we show that on th…

math.GT2025

Homotopy Type of the Space of Fibrations of the Three-sphere by Simple Closed Curves

Dennis Deturck, Ziqi Fang, Herman Gluck +4

We show that the moduli space of all smooth fibrations of a three-sphere by simple closed curves has the homotopy type of a disjoint union of a pair of two-spheres if the fibers ar…