CAT(k) space

In mathematics, a space, where is a real number, is a specific type of metric space. Intuitively, triangles in a space are "slimmer" than corresponding "model triangles" in a standard space of constant curvature . In a space, the curvature is bounded from above by . A notable special case is complete spaces are known as Hadamard spaces after the French mathematician Jacques Hadamard. Originally, Alexandrov called these spaces “ domain”.The terminology

CAT(k) space

In mathematics, a space, where is a real number, is a specific type of metric space. Intuitively, triangles in a space are "slimmer" than corresponding "model triangles" in a standard space of constant curvature . In a space, the curvature is bounded from above by . A notable special case is complete spaces are known as Hadamard spaces after the French mathematician Jacques Hadamard. Originally, Alexandrov called these spaces “ domain”.The terminology