WebAug 1, 2024 · Vuong in [ 10] established a fixed point theorem for nonexpansive mappings in a locally convex space with normal structure and the compactness of the domain. In this paper, we define the concept of nonself - contraction mappings in locally convex spaces endowed with a digraph . WebApr 17, 2009 · In this paper a new fixed point theorem for upper semicontinuous set-valued mappings with closed acyclic values is established in the setting of an abstract convex structure – called a locally G -convex space, which generalises usual convexity such as locally convex H -spaces, locally convex spaces (locally H -convex spaces), …
Fixed points of upper semicontinuous mappings in locally G -convex spaces
WebIn Chapter 8 we present fixed point results for maps defined on Hausdorff locally convex linear topological spaces. The extension of Schauder’s fixed point theorem to such spaces is known as the Schauder– Tychonoff theorem and this is the first main result of the chapter. WebTools. In mathematics — specifically, in measure theory and functional analysis — the cylindrical σ-algebra [1] or product σ-algebra [2] [3] is a type of σ-algebra which is often used when studying product measures or probability measures of random variables on Banach spaces . For a product space, the cylinder σ-algebra is the one that ... dundarach pitlochry
Fixed point theorems in locally convex spaces and a nonlinear …
WebThe Schauder fixed-point theorem is an extension of the Brouwer fixed-point theorem to topological vector spaces, which may be of infinite dimension.It asserts that if is a nonempty convex closed subset of a Hausdorff topological vector space and is a continuous mapping of into itself such that () is contained in a compact subset of , then has a fixed point. WebThe fixed point index for local condensing maps. To appear. Opial, Z.: Weak convergence of the sequence of successive approximations for nonexpansive mappings. Bull. Amer. Math. Soc.73, 591–597 (1967). Google Scholar Petryshyn, W.V.: On nonlinearP … WebJul 22, 2024 · In this paper we prove some new fixed point theorems in r-normed and locally r-convex spaces. Our conclusions generalize many well-known results and provide a partial affirmative answer... dundarave property management