Publicado 2006-10-24
Palabras clave
- nudos,
- entrelazados,
- suavizaciones de cruces,
- cohomología de nudos,
- característica de Euler
- invariantes de nudos ...Más
Cómo citar
Resumen
El funtor TQFT (Topological Quantum Field Theory) relaciona la categoría de uno-variedades suaves cerradas con la categoría de módulos sobre un anillo R. Los objetos de la primera categoría son clases de isotopía de curvas suaves cerradas en el plano, y los morfismos son cobordismos entre ellas (superficies suaves confrontera en esas curvas suaves cerradas). En la segunda categoría los morfismos son productos y coproductos definidos sobre un R-módulo A. A través de esta relación se obtienen la cohomología de Khovanov y el polinomio de Kovanov, los cuales son invariantes topológicos de nudos.
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Referencias
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