Results 21 to 30 of about 349,839 (123)
Coincidence points of principal bundles
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Nonstabilized Nielsen coincidence invariants and Hopf--Ganea homomorphisms
In classical fixed point and coincidence theory the notion of Nielsen numbers has proved to be extremely fruitful. We extend it to pairs (f_1,f_2) of maps between manifolds of arbitrary dimensions, using nonstabilized normal bordism theory as our main ...
Bogatyĭ +13 more
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Maps on graphs can be deformed to be coincidence-free [PDF]
We give a construction to remove coincidence points of continuous maps on graphs (1-complexes) by changing the maps by homotopies. When the codomain is not homeomorphic to the circle, we show that any pair of maps can be changed by homotopies to be ...
Staecker, P. Christopher
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On coincidence problem and attractor solutions in ELKO dark energy model
We study the critical points of a universe dominated by ELKO spinor field dark energy and a barotropic matter without considering a specific potential or interaction.
Sadjadi, H. Mohseni
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Coincidence of magnetic and valence quantum critical points in CeRhIn5 under pressure
We present accurate electrical resistivity measurements along the two principle crystallographic axes of the pressure-induced heavy-fermion superconductor CeRhIn5 up to 5.63 GPa.
Aoki, D. +5 more
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FIXED POINTS AND COINCIDENCES IN TORUS BUNDLES [PDF]
Minimum numbers of fixed points or of coincidence components (realized by maps in given homotopy classes) are the principal objects of study in topological fixed point and coincidence theory. In this paper, we investigate fiberwise analoga and present a general approach e.g. to the question when two maps can be deformed until they are coincidence free.
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NONLINEAR CONDITIONS FOR COINCIDENCE POINT AND FIXED POINT THEOREMS [PDF]
In this paper, we first establish some new types of fixed point theorem which generalize and improve Berinde-Berinde's fixed point theorem, Mizoguchi-Takahashi's fixed point theorem and many results in [W.-S. Du, Some new results and generalizations in metric fixed point theory, Nonlinear Anal. 73 (2010), 1439-1446] and references therein.
Wei-Shih Du, Shao-Xuan Zheng
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Nothing but coincidences: the point-coincidence and Einstein’s struggle with the meaning of coordinates in physics [PDF]
AbstractIn his 1916 review paper on general relativity, Einstein made the often-quoted oracular remark that all physical measurements amount to a determination of coincidences, like the coincidence of a pointer with a mark on a scale. This argument, which was meant to express the requirement of general covariance, immediately gained great resonance ...
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Minimizing coincidence numbers of maps into projective spaces
In this paper we continue to study (`strong') Nielsen coincidence numbers (which were introduced recently for pairs of maps between manifolds of arbitrary dimensions) and the corresponding minimum numbers of coincidence points and pathcomponents.
Koschorke, Ulrich
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Coincidence and fixed point theorems with applications
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Ansari, Qamrul H. +2 more
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