simplicial complex wikipedia - EAS

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  1. En la matemática, un complejo simplicial es un tipo particular de espacio topológico construido mediante el pegado de puntos, segmentos de línea, triángulos, tetraedros y demás análogos de dimensiones superiores.
    es.wikipedia.org/wiki/Complejo_simplicial
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    Simplicial complex - Wikipedia

    https://en.wikipedia.org/wiki/Simplicial_complex

    In mathematics, a simplicial complex is a set composed of points, line segments, triangles, and their n-dimensional counterparts (see illustration). Simplicial complexes should not be confused with the more abstract notion of a simplicial set appearing in modern simplicial homotopy theory.

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    A simplicial complex is a set of simplices that satisfies the following conditions:
    1. Every face of a simplex from is also in . 2. The non-empty intersection of any two simplices is a face of both and .
    See also the definition of a

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    In algebraic topology, simplicial complexes are often useful for concrete calculations. For the definition of homology groups of a simplicial complex, one can read the corresponding chain complexdirectly, provided that consistent orientations are made of all simplices. The

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    Combinatorialists often study the f-vector of a simplicial d-complex Δ, which is the integer sequence , where fi is the number of (i−1)-dimensional faces of

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  3. Abstract simplicial complex - Wikipedia

    https://en.wikipedia.org/wiki/Abstract_simplicial_complex

    In combinatorics, an abstract simplicial complex (ASC) is a family of sets that is closed under taking subsets, i.e., every subset of a set in the family is also in the family. It is a purely combinatorial description of the geometric notion of a simplicial complex. For example, in a 2-dimensional simplicial complex, the sets in the family are the triangles (sets of size 3), their edges (sets of size 2), and t…

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  4. Complexe simplicial — Wikipédia

    https://fr.wikipedia.org/wiki/Complexe_simplicial
    • Définition
      La définition de complexe simplicial géométrique[1] fait appel à celle de simplexe affine. Dans un espace affine réel de dimension n, un simplexe est défini comme l'enveloppe convexe d'un ensemble de n+1 points dont aucun ne peut être obtenu comme barycentre des autres. Ces poin…
    • Polyèdre et triangulation
      Le polyèdre associé à un complexe simplicial géométrique K est simplement la réunion de tous les simplexes qu'il contient. Il est noté |K|. La donnée d'un complexe simplicial et d'un homéomorphisme entre son polyèdre et un espace topologique X constitue une triangulation de …
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    • Complex simplicial - Wikipedia

      https://ro.wikipedia.org/wiki/Complex_simplicial
      • Un complex simplicial K {\displaystyle {\mathcal {K}}\,} este o mulțime de simplexuricare îndeplinește următoarele condiții: 1. 1. Orice față din simplexurile care fromează K {\displaystyle {\mathcal {K}}} este, de asemenea, în K {\displaystyle {\mathcal {K}}} . 2. 2. Intersecția nevidă a oricăror două simplexuri σ 1 , σ 2 ∈ K {\displaystyle \sigma _{1},\sigma _{2}\in {\mathcal {K}}} es…
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    • Complexo simplicial – Wikipédia, a enciclopédia livre

      https://pt.wikipedia.org/wiki/Complexo_simplicial

      Em topologia, um complexo simplicial S é uma colecção finita de simplexos tais que cada face de um simplexo de S é um simplexo de S e a intersecção de dois simplexos de S é vazia ou uma face de ambos.. À dimensão máxima dos simplexos de S chama-se a dimensão de S.. A expressão de um espaço topológico como complexo simplicial permite a definição de invariantes …

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      • Complejo simplicial - Wikipedia, la enciclopedia libre

        https://es.wikipedia.org/wiki/Complejo_simplicial

        Este consiste en 17 puntos (0-simplejos), 22 aristas (1-simplejos), 8 triángulos (2-simplejos) y 1 tetraedro (3-simplejo). En la matemática, un complejo simplicial es un tipo particular de espacio topológico construido mediante el pegado de puntos, segmentos de línea, triángulos, tetraedros y demás análogos de dimensiones superiores.

      • Simplicial complex - HandWiki

        https://handwiki.org/wiki/Simplicial_complex

        A simplicial complex K is a set of simplices that satisfies the following conditions: 1. Every face of a simplex from K is also in K. 2. The non-empty intersection of any two simplices σ 1, σ 2 ∈ K is a face of both σ 1 and σ 2. See also the definition of an abstract simplicial complex, which loosely speaking is a simplicial complex ...

      • Simplicial complex - Encyclopedia of Mathematics

        https://encyclopediaofmath.org/wiki/Simplicial_complex

        20/01/2018 · simplicial scheme, abstract simplicial complex. A set, whose elements are called vertices, in which a family of finite non-empty subsets, called simplexes or simplices, is distinguished, such that every non-empty subset of a simplex is a simplex, called a face of , and every one-element subset is a simplex.. A simplex is called -dimensional if it consists of vertices.

      • Simplicial complex - GIS Wiki | The GIS Encyclopedia

        wiki.gis.com/wiki/index.php/Simplicial_complex

        Definitions. A simplicial complex is a set of simplices that satisfies the following conditions: . 1. Any face of a simplex from is also in . 2. The intersection of any two simplices is a face of both and .. Note that the empty set is a face of every simplex. See also the definition of an abstract simplicial complex, which loosely speaking is a simplicial complex without an associated …



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