Johannes Hahn

activity

20102017

most citedW-graphs and Gyoja's W-graph algebra

1 citations · 1 across the 4 of their papers we have counts for

collaborators

4 papers

math.RT2017

A Reduction theorem for the $W$ -graph decomposition conjecture

Johannes Hahn

Let $W$ be a finite Coxeter group and $Ω$ be its $W$ -graph algebra as defined by Gyoja. The author's previous paper \cite{hahn2016wgraphs} considered this algebra in some detail, p…

math.RT2014

On canonical bases and induction of $W$ -graphs

Johannes Hahn

A canonical basis in the sense of Lusztig is a basis of a free module over a ring of Laurent polynomials that is invariant under a certain semilinear involution and is obtained fro…

math.RT2014★ 1 cited

W-graphs and Gyoja's W-graph algebra

Johannes Hahn

Let $(W, S)$ be a finite Coxeter group. Kazhdan and Lusztig introduced the concept of $W$ -graphs and Gyoja proved that every irreducible representation of the Iwahori-Hecke algebra…

math.GN2010

An interesting proof of the nonexistence continuous bijection between $R^{n}$ and $R^{2}$ for $n \neq = 2$ }

Freshteh Malek, Hamed Daneshpajouh, Hamidreza Daneshpajouh +1

In this article it is shown that there is no continuous bijection from $R^{n}$ onto $R^{2}$ for $n \neq = 2$ by an elementary method. This proof is based on showing that…

A Reduction theorem for the W-graph decomposition conjecture

On canonical bases and induction of W-graphs

W-graphs and Gyoja's W-graph algebra

An interesting proof of the nonexistence continuous bijection between Rn and R2 for n=2}

A Reduction theorem for the $W$ -graph decomposition conjecture

On canonical bases and induction of $W$ -graphs

An interesting proof of the nonexistence continuous bijection between $R^{n}$ and $R^{2}$ for $n \neq = 2$ }