activity
20002025
most citedAn expansion of the Jones representation of genus 2 and the Torelli group

5 citations · 5 across the 8 of their papers we have counts for

collaborators

8 papers

math.GT2025

Global fixed point in low-dimensional surface group deformation space

Yasushi Kasahara

Under the natural action of the pure mapping class group of a surface of genus at least three, we show that any global fixed point in the low-dimensional deformation space of the s…

math.GT2022

Crossed homomorphisms and low dimensional representations of mapping class groups of surfaces

Yasushi Kasahara

We continue the study of low dimensional linear representations of mapping class groups of surfaces initiated by Franks--Handel and Korkmaz. We consider -dimensional comple…

math.GT2015

Geometric intersection in representations of mapping class groups of surfaces

Yasushi Kasahara

We show that the detection of geometric intersection in an arbitrary representation of the mapping class group of surface implies the injectivity of that representation up to cente…

math.GT2014

A uniqueness of periodic maps on surfaces

Susumu Hirose, Yasushi Kasahara

Kulkarni showed that, if g is greater than 3, a periodic map on an oriented surface S_g of genus g with order more than or equal to 4g is uniquely determined by its order, up to co…

math.GT2012

On visualization of the linearity problem for mapping class groups of surfaces

Yasushi Kasahara

We derive two types of linearity conditions for mapping class groups of orientable surfaces: one for once-punctured surface, and the other for closed surface, respectively. For the…

math.GT2010

Addendum to: "An expansion of the Jones representation of genus 2 and the Torelli group"

Yasushi Kasahara

We observe that the determinant of the representation provides a little restriction for the structure of the graded quotients introduced in both [Algebr. Geom.…

math.GT2008

Remarks on the faithfulness of the Jones representations

Yasushi Kasahara

We consider the linear representations of the mapping class group of an n-punctured 2-sphere constructed by V. F. R. Jones using Iwahori-Hecke algebras of type A. We show that thei…

math.GT2000★ 5 cited

An expansion of the Jones representation of genus 2 and the Torelli group

Yasushi Kasahara

We study the algebraic property of the representation of the mapping class group of a closed oriented surface of genus 2 constructed by VFR Jones [Annals of Math. 126 (1987) 335-38…