activity
20112026
most citedCharacteristic classes of bundles of K3 manifolds and the Nielsen realization problem

8 citations · 31 across the 20 of their papers we have counts for

collaborators
Showing 2026Show all

3 papers · 1 filter

math.GT2026

Sphere decomposition for finite subgroups of 3-manifold mapping class groups

Corey Bregman, Bena Tshishiku

For a closed, oriented 3-manifold , we show that any finite subgroup of its mapping class group preserves an isotopy class of filling sphere system on . This is an isotopy ve…

math.GT2026

Finite group actions on nonpositively curved 3-manifolds

Bena Tshishiku, Zhengyu Zou

We show that every orientation-preserving action of a finite group on a closed nonpositively curved 3-manifold preserves a nonpositively curved metric.

math.GT2026

Morse complexity of homology classes

Fedor Manin, Bena Tshishiku, Shmuel Weinberger

The Morse complexity of a manifold is the minimal number of handles required to build it. We explore the Morse complexity of manifolds, bordisms, and homology classes, proving nont…