54 citations · 237 across the 33 of their papers we have counts for
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cs.CG2013★ 4 cited
Isometric embedding of Busemann surfaces into
Jérémie Chalopin, Victor Chepoi, Guyslain Naves
In this paper, we prove that any non-positively curved 2-dimensional surface (alias, Busemann surface) is isometrically embeddable into . As a corollary, we obtain that all pl…
math.CO2013★ 26 cited
Cop and robber game and hyperbolicity
Jérémie Chalopin, Victor Chepoi, Panos Papasoglu +1
In this note, we prove that all cop-win graphs G in the game in which the robber and the cop move at different speeds s and s' with s'<s, are δ-hyperbolic with δ=O(s^2). We also sh…