reducible graph
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Graph property — In graph theory a graph property is any inherently graph theoretical property of graphs (formal definitions follow), distinguished from properties of graphs described in terms of various graph representations: graph drawings, data structures for… … Wikipedia
Connectivity (graph theory) — In mathematics and computer science, connectivity is one of the basic concepts of graph theory: it asks for the minimum number of elements (nodes or edges) which need to be removed to disconnect the remaining nodes from each other[1]. It is… … Wikipedia
Constraint Composite Graph — The constraint composite graph is a node weighted undirected graph associated with a given combinatorial optimization problem posed as a weighted constraint satisfaction problem. Developed and introduced by Satish Kumar Thittamaranahalli (T. K.… … Wikipedia
Cograph — The Turán graph T(13,4), an example of a cograph In graph theory, a cograph, or complement reducible graph, or P4 free graph, is a graph that can be generated from the single vertex graph K1 by complementation and disjoint union. That is, the… … Wikipedia
Four color theorem — Example of a four colored map A four colori … Wikipedia
Cycle double cover — Unsolved problems in mathematics Does every bridgeless graph have a multiset of cycles covering every edge exactly twice? … Wikipedia
Perron–Frobenius theorem — In linear algebra, the Perron–Frobenius theorem, proved by Oskar Perron (1907) and Georg Frobenius (1912), asserts that a real square matrix with positive entries has a unique largest real eigenvalue and that the corresponding… … Wikipedia
NP-complete — Euler diagram for P, NP, NP complete, and NP hard set of problems In computational complexity theory, the complexity class NP complete (abbreviated NP C or NPC) is a class of decision problems. A decision problem L is NP complete if it is in the… … Wikipedia
SL (complexity) — In computational complexity theory, SL (Symmetric Logspace or Sym L) is the complexity class of problems log space reducible to USTCON ( undirected s t connectivity ), which is the problem of determining whether there exists a path between two… … Wikipedia
P versus NP problem — Unsolved problems in computer science Is P = NP ? … Wikipedia
Circuits over sets of natural numbers — Circuits over natural numbers is a mathematical model used in studying computational complexity theory. It is a special case of circuit, the object is a labeled directed acyclic graph the nodes of which evaluate to sets of natural numbers, the… … Wikipedia
