1 citations · 5 across the 13 of their papers we have counts for
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Dense subsets of boundaries of CAT(0) groups
Tetsuya Hosaka
In this paper, we study dense subsets of boundaries of CAT(0) groups. Suppose that a group acts geometrically on a CAT(0) space and suppose that there exists an element $g_…
On the center of a Coxeter group
Tetsuya Hosaka
In this paper, we show that the center of every Coxeter group is finite and isomorphic to for some . Moreover, for a Coxeter system , we prove that $Z(W)=…
On fixed-point sets in the boundary of a CAT(0) space
Tetsuya Hosaka
In this paper, we investigate the fixed-point set of an element of a CAT(0) group in its boundary. Suppose that a group acts geometrically on a CAT(0) space . Let a…
A new class of reconstructible graphs
Tetsuya Hosaka
In this paper, we give a new class of reconstructible graphs, which is an extension of my paper `A class of reconstructible graphs'.
A class of reconstructible graphs
Tetsuya Hosaka
In this paper, we give a class of reconstructible graphs.
On dense orbits in the boundary of a Coxeter system
Tetsuya Hosaka
In this paper, we study the minimality of the boundary of a Coxeter system. We show that for a Coxeter system if there exist a maximal spherical subset of and an el…