An SL₂(ℝ) -Casson invariant and Reidemeister torsions

2020/05/13 by Nosaka, Takefumi
#FOS: Mathematics #Geometric Topology (math.GT)

paper · doi:10.48550/arxiv.2005.06132

Abstract

We define an SL₂(ℝ)-Casson invariant of closed 3-manifolds. We also observe procedures of computing the invariants in terms of Reidemeister torsions. We discuss some approach of giving the Casson invariant some gradings.

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