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  2. Adjoint functors - Wikipedia

    en.wikipedia.org/wiki/Adjoint_functors

    For example, an elementary problem in ring theory is how to turn a rng ... For each group X, the group FGX is the free group generated freely by GX, the elements of X.

  3. List of NP-complete problems - Wikipedia

    en.wikipedia.org/wiki/List_of_NP-complete_problems

    The problem for graphs is NP-complete if the edge lengths are assumed integers. The problem for points on the plane is NP-complete with the discretized Euclidean metric and rectilinear metric. The problem is known to be NP-hard with the (non-discretized) Euclidean metric. [3]: ND22, ND23

  4. FGX - Wikipedia

    en.wikipedia.org/wiki/FGX

    FGX can refer to: , a free group generated by GX, the generators of some group X; see Adjoint functors#Free groups; FGX International, an American company acquired by ...

  5. Maximum cut - Wikipedia

    en.wikipedia.org/wiki/Maximum_cut

    The canonical optimization variant of the above decision problem is usually known as the Maximum-Cut Problem or Max-Cut and is defined as: Given a graph G, find a maximum cut. The optimization variant is known to be NP-Hard. The opposite problem, that of finding a minimum cut is known to be efficiently solvable via the Ford–Fulkerson algorithm.

  6. Daihatsu Terios - Wikipedia

    en.wikipedia.org/wiki/Daihatsu_Terios

    The Taruna received facelifts in August 2001, July 2003, March 2004 and March 2005. It was available with CL and FL, CX and FX, and CSX and FGX grades. There were also CSR and FGZ special grades, which were similar to CSX and FGX, with a 1589 cc HD-E petrol engine with electronic fuel injection. [11]

  7. Force-directed graph drawing - Wikipedia

    en.wikipedia.org/wiki/Force-directed_graph_drawing

    Force-directed graph drawing algorithms assign forces among the set of edges and the set of nodes of a graph drawing.Typically, spring-like attractive forces based on Hooke's law are used to attract pairs of endpoints of the graph's edges towards each other, while simultaneously repulsive forces like those of electrically charged particles based on Coulomb's law are used to separate all pairs ...

  8. List of undecidable problems - Wikipedia

    en.wikipedia.org/wiki/List_of_undecidable_problems

    Hilbert's tenth problem: the problem of deciding whether a Diophantine equation (multivariable polynomial equation) has a solution in integers. Determining whether a given initial point with rational coordinates is periodic, or whether it lies in the basin of attraction of a given open set, in a piecewise-linear iterated map in two dimensions ...

  9. Fragile X syndrome - Wikipedia

    en.wikipedia.org/wiki/Fragile_X_syndrome

    About a third of those affected have features of autism such as problems with social interactions and delayed speech. [1] Hyperactivity is common, and seizures occur in about 10%. [1] Males are usually more affected than females. [1] This disorder and finding of fragile X syndrome has an X-linked recessive inheritance.