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Image Image A. Tian, Y. Wu,Stability of large rainbow intersecting family with product measure …

The study of hyperbolic graphs is an interesting topic since the hyperbolicity of a geodesic
metric space is equivalent to the hyperbolicity of a graph related to it. The main result in this …

In [7] the following conjecture is stated: every tessellation of the Euclidean plane with convex
tiles induces a non-hyperbolic graph. It is natural to think that this statement holds since the …

Gromov hyperbolicity grasps the essence of both negatively curved spaces and discrete
spaces. The hyperbolicity of a geodesic metric space is equivalent to the hyperbolicity of a …

Sea X un espacio métrico geodésico yx 1, x2, x3∈ X. Un triángulo geodésico T={x1, x2, x3}
es la unión de tres geodésicas [x1x2],[x2x3] y [x3x1] de X. El espacio X es δhiperbólico (en …