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On nonsymmetric theorems for coincidence of multi-valued map
Journal of Fixed Point Theory and Applications ( IF 1.8 ) Pub Date : 2023-06-19 , DOI: 10.1007/s11784-023-01064-w
Allan Edley Ramos de Andrade , Northon Canevari Leme Penteado , Sergio Tsuyoshi Ura

Given a finite group G which acts freely on \(\mathbb {S}^{n}\), H a normal cyclic subgroup of prime order, in de Mattos and dos Santos (Topol. Methods Nonlinear Anal. 33:105–120, 2009) have defined and estimate the cohomological dimension of the set \(A_{\varphi }(f, H, G)\) of (HG)-coincidence points of a continuous map \(f: X \rightarrow Y\) relative to an essential map \(\varphi : X \rightarrow \mathbb {S}^{n}\), where X is a compact Hausdorff space and Y is a k-dimensional CW-complex. The first aim of this work is to extend this result to a multi-valued map \(F: X \multimap Y\). The second aim of this work is to estimate the cohomological dimension of the set

$$\begin{aligned} \displaystyle A(F, h)=\left\{ (x_{1},\ldots , x_p) \in X^{p} \ | \ h(x_{i+1})=T^{i}h(x_{1}), \cap _{i=1}^{p} F(x_{i})\ne \emptyset \right\} , \end{aligned}$$

where \(F: X \multimap M \) is an acyclic multi-valued map and \(h: X \rightarrow N\) is a continuous map such that \(h^{*}: H^{n}(N) \rightarrow H^{n}(X)\) is a non trivial homomorphism, where X is a Hausdorff compact space and N is a connected closed manifold homology \(n-\)sphere and equipped with a free action of the cyclic group \(\mathbb {Z}_{p}\) generated by a periodic homeomorphism \(T: N \rightarrow N\) of prime period p and M is a connected manifold( which M and N suppose orientable if \(p > 2\)).



中文翻译:

多值映射重合的非对称定理

给定一个自由作用于\(\mathbb {S}^{n}\) 的有限群GH是素数阶的正常循环子群,在 de Mattos 和 dos Santos 中(Topol.Methods Nonlinear Anal. 33:105–120) ,2009)定义并估计了连续映射\(f: X \rightarrow Y的 ( H , G ) 重合点的集合\(A_{\varphi }(f, H ,  G)\) 的上同调维数\)相对于基本映射\(\varphi : X \rightarrow \mathbb {S}^{n}\),其中X是紧致豪斯多夫空间,Yk维 CW 复合体。这项工作的第一个目标是将这个结果扩展到多值映射\(F: X \multimap Y\)。这项工作的第二个目标是估计集合的上同调维数

$$\begin{对齐} \displaystyle A(F, h)=\left\{ (x_{1},\ldots , x_p) \in X^{p} \ | \ h(x_{i+1})=T^{i}h(x_{1}), \cap _{i=1}^{p} F(x_{i})\ne \emptyset \right\ } , \end{对齐}$$

其中\(F: X \multimap M \)是非循环多值映射,而\(h: X \rightarrow N\)是连续映射,使得\(h^{*}: H^{n}(N ) \rightarrow H^{n}(X)\)是一个非平凡同态,其中X是豪斯多夫紧空间,N是连通闭流形同调\(n-\)球体,并配备循环的自由作用由素数周期p的周期同胚\(T: N \rightarrow N\) 生成的群 \ (\mathbb {Z}_{p}\) 且 M一个连通如果\ (p > 2\))。

更新日期:2023-06-21
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