- graph toughness
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(mathematics) a measure, expressed by a positive integer (with the exception of complete graphs) of the connectivity of a graph
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graph toughness
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Graph toughness — In graph theory, toughness is a measure of the connectivity of a graph. A graph G is said to be t tough if, for every k > 1, G cannot be split into k different connected components by the removal of fewer than tk vertices. For instance, a graph… … Wikipedia
Toughness — Toughness, in materials science and metallurgy, is the resistance to fracture of a material when stressed. It is defined as the amount of energy per volume that a material can absorb before rupturing.Mathematical definitionToughness can be found… … Wikipedia
Connected component (graph theory) — A graph with three connected components. In graph theory, a connected component of an undirected graph is a subgraph in which any two vertices are connected to each other by paths, and which is connected to no additional vertices. For example,… … Wikipedia
Václav Chvátal — Václav (Vašek) Chvátal (born 1946 [http://www.ece.tufts.edu/colloquia/archives/fall00/perfectGraphs.html Biography included with abstract for talk by Chvátal at Tufts Univ., 2000] .] ) (pronounced|ˈvaːt͡slaf ˈxvaːtal) is a professor in the… … Wikipedia
List of mathematics articles (G) — NOTOC G G₂ G delta space G networks Gδ set G structure G test G127 G2 manifold G2 structure Gabor atom Gabor filter Gabor transform Gabor Wigner transform Gabow s algorithm Gabriel graph Gabriel s Horn Gain graph Gain group Galerkin method… … Wikipedia
Discrete Mathematics (journal) — For the area of mathematics, see Discrete mathematics. Discrete Mathematics Abbreviated title ( … Wikipedia
Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… … Universalium
Corrosion fatigue — is fatigue in a corrosive environment. It is the mechanical degradation of a material under the joint action of corrosion and cyclic loading. Nearly all engineering structures experience some form of alternating stress, and are exposed to harmful … Wikipedia
Iron — Fe redirects here. For other uses, see Fe (disambiguation). This article is about the chemical element. For other uses, see Iron (disambiguation). manganese … Wikipedia
Tensile strength — sigma {UTS}, or S U is the stress at which a material breaks or permanently deforms. Tensile strength is an intensive property and, consequently, does not depend on the size of the test specimen. However, it is dependent on the preparation of the … Wikipedia
