Geometrical Theory on Combinatorial Manifolds

Details Geometrical Theory on Combinatorial Manifolds Geometrical Theory on Combinatorial Manifolds

2006-12-26

arxiv.org/abs/math/0612760v1

Mathematics

General Mathematics

37 pages with 2 figures

Scientific paper

For an integer $m\geq 1$, a combinatorial manifold $\widetilde{M}$ is defined to be a geometrical object $\widetilde{M}$ such that for $\forall p\in\widetilde{M}$, there is a local chart $(U_p,\phi_p)$ enable $\phi_p:U_p\to B^{n_{i_1}}\bigcup B^{n_{i_2}}\bigcup...\bigcup B^{n_{i_{s(p)}}}$ with $B^{n_{i_1}}\bigcap B^{n_{i_2}}\bigcap...\bigcap B^{n_{i_{s(p)}}}\not=\emptyset$, where $B^{n_{i_j}}$ is an $n_{i_j}$-ball for integers $1\leq j\leq s(p)\leq m$. Topological and differential structures such as those of $d$-pathwise connected, homotopy classes, fundamental $d$-groups in topology and tangent vector fields, tensor fields, connections, {\it Minkowski} norms in differential geometry on these finitely combinatorial manifolds are introduced. Some classical results are generalized to finitely combinatorial manifolds. Euler-Poincare characteristic is discussed and geometrical inclusions in Smarandache geometries for various geometries are also presented by the geometrical theory on finitely combinatorial manifolds in this paper.

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