Yuki Kojima

collaborators

2 papers

math.RT2025

On homomorphisms from finite subgroups of $S U (2)$ to Langlands dual pairs of groups

Yuki Kojima, Yuji Tachikawa

Let $N (I^, G)$ be the number of homomorphisms from $I^$ to $G$ up to conjugation by $G$ . Physics of four-dimensional $N = 4$ supersymmetric gauge theories predicts that $N(Î…

math.GT2025

A closed manifold is a fat CW complex

Norio Iwase, Yuki Kojima

The main purpose of this paper is to introduce a new smooth version of a CW complex named a fat CW complex, and to show that it includes all closed manifolds, because existing smoo…

On homomorphisms from finite subgroups of SU(2) to Langlands dual pairs of groups

A closed manifold is a fat CW complex

On homomorphisms from finite subgroups of $S U (2)$ to Langlands dual pairs of groups