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E Gyfiri Strongly connected digraphs with few cycles 251
Bardny System of representatives for sets whose convex hull
Bose R Miskimins Partial geometric spaces
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3-connected graph adjacency matrix ALGEBRAIC METHODS algorithm assume automorphism group binary bipartite graph Budapest Cayley graphs chain chromatic number COLLOQUIA MATHEMATICA SOCIETATIS combed Combinatorial complete graph conjecture connected constructed contradiction Corollary cubic graphs D.M. Cvetkovic define denote disjoint eigenvalues elements exists f.s.a. of degree Figure following theorem function fundamental matroid geometry graph G graph spectra graph theory Hence homeomorph Hungary hypergraph implies integer intersecting isomorphic JANOS BOLYAI JANOS BOLYAI 25 lattice Lemma Let G Let H Math MATHEMATICA SOCIETATIS JANOS matroid METHODS IN GRAPH natural number non-separating cycles obtain odd-generated output tournament path permutation group planar planar graph polynomial prime problem Proposition prove regular graph rotational tournament S-rings satisfying sequence set system SOCIETATIS JANOS BOLYAI solvable spectrum strongly regular graph subgraph subgroup submodular supermatroid subset Suppose that G SZEGED SZEGED HUNGARY tree v-critical vectors vertex vertices