Topological equivalence

Xem 1-7 trên 7 kết quả Topological equivalence
  • In the two parts of this paper we prove that the Reidemeister torsion invariants determine topological equivalence of G-representations, for G a finite cyclic group. 1. Introduction Let G be a finite group and V , V finite dimensional real orthogonal representations of G. Then V is said to be topologically equivalent to V (denoted V ∼t V ) if there exists a homeomorphism h : V → V which is G-equivariant. If V , V are topologically equivalent, but not linearly isomorphic, then such a homeomorphism is called a nonlinear similarity. ...

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  • Although they can be topologically different, two distinct transducers may actually recognize the same rational relation. Being able to test the equivalence of transducers allows to implement such operations as incremental minimization and iterative composition.

    pdf4p bunbo_1 17-04-2013 12 2   Download

  • In contrast with other VPN technologies, MPLS VPN supports optimum any-toany connectivity between customer sites (equivalent to the full mesh of overlay VPN networks) without the end customer having to manually configure anything. The provider only needs to configure the VPN in the Provider Edge (PE) routers. The so-called “hub-and-spoke” topology, which was primarily used to reduce the cost of the network, is no longer needed. The interconnection of CE sites is done automatically by using BGP and an IGP to find the shortest path....

    pdf1p trungha 28-08-2009 206 70   Download

  • Among the branches of classical physics, electromagnetism is the domain which experiences the most spectacular development, both in its fundamental and practical aspects. The quantum corrections which generate non-linear terms of the standard Maxwell equations, their specific form in curved spaces, whose predictions can be confronted with the cosmic polarization rotation, or the topological model of electromagnetism, constructed with electromagnetic knots, are significant examples of recent theoretical developments. ...

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Equivalent Solutions of Nonlinear Equations in a Topological Vector Space with a Wedge

    pdf25p sting10 07-03-2012 19 2   Download

  • A long-standing conjecture due to Michael Freedman asserts that the 4-dimensional topological surgery conjecture fails for non-abelian free groups, or equivalently that a family of canonical examples of links (the generalized Borromean rings) are not A − B slice. A stronger version of the conjecture, that the Borromean rings are not even weakly A − B slice, where one drops the equivariant aspect of the problem, has been the main focus in the search for an obstruction to surgery.

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  • The purpose of this paper is to prove that the stable homotopy category of algebraic topology is ‘rigid’ in the sense that it admits essentially only one model: Rigidity Theorem. Let C be a stable model category. If the homotopy category of C and the homotopy category of spectra are equivalent as triangulated categories, then there exists a Quillen equivalence between C and the model category of spectra. Our reference model is the category of spectra in the sense of Bousfield and Friedlander [BF, §2] with the stable model structure. The point of the rigidity theorem is that its...

    pdf28p noel_noel 17-01-2013 24 5   Download


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