Ossona — Comune Comune di Ossona … Wikipedia
Ossona — Ossona … Wikipedia Español
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Ossona — Administration Pays Italie Région … Wikipédia en Français
Marquesado de Aitona — Corona marquesal Primer titular Francisco de Montcada y Cardona Concesión Felipe II … Wikipedia Español
Scheinerman's conjecture — In mathematics, Scheinerman s conjecture states that every planar graph is the intersection graph of a set of line segments in the plane. This conjecture was formulated by E. R. Scheinerman in his Ph.D. thesis (1984), following earlier results… … Wikipedia
Mario Mereghetti — Personal information Date of birth May 3, 1938 (1938 05 03) (age 73) Place of birth … Wikipedia
Dense graph — In mathematics, a dense graph is a graph in which the number of edges is close to the maximal number of edges. The opposite, a graph with only a few edges, is a sparse graph. The distinction between sparse and dense graphs is rather vague, and… … Wikipedia
Schnyder's theorem — In mathematics, Schnyder s theorem in graph theory is a planarity characterization for graphs in termsof the order dimension of their incidence posets.The incidence poset P(G) of a graph G with vertex set V and edge set E is the partially ordered … Wikipedia
Marcallo con Casone — Comune Comune di Marcallo con Casone … Wikipedia