Results 81 to 90 of about 12,683 (242)
Δ-convergence for proximal point algorithm and fixed point problem in CAT(0) spaces
Fixed Point Theory and Applications, 2019 In this paper, we prove the Δ-convergence of a modified proximal point algorithm for common fixed points in a CAT(0) space for different classes of generalized nonexpansive mappings including a total asymptotically nonexpansive mapping, a multivalued ...
Shamshad Husain, Nisha Singh
doaj +1 more source
Optimal Control Applications and Methods, Volume 46, Issue 6, Page 2708-2726, November/December 2025.The graphical abstract highlights our research on Sobolev Hilfer fractional Volterra‐Fredholm integro‐differential (SHFVFI) control problems for 1<ϱ<2$$ 1<\varrho <2 $$. We begin with the Hilfer fractional derivative (HFD) of order (1,2) in Sobolev type, which leads to Volterra‐Fredholm integro‐differential equations.
Marimuthu Mohan Raja +3 more
wiley +1 more source
Perfect Open and Distinguishable Multivalued Maps [PDF]
Transactions of the American Mathematical Society, 1973 It is shown that perfect open multivalued maps preserve Z \mathcal {Z} -analytic sets (which include compact zero sets) as well as other objects of descriptive set theory. The concept of “distinguishability", introduced by Frolík, is applied to multivalued maps, yielding a new class of such maps with similar preservation ...
openaire +1 more source
Journal of Applied Mathematics, 2012 An iterative sequence for quasi--asymptotically nonexpansive multivalued mapping for modifying Halpern's iterations is introduced. Under suitable conditions, some strong convergence theorems are proved.
Li Yi
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3D Point, Line, Edge and Wedge Diffraction Separation in Kirchhoff Imaging
Geophysical Prospecting, Volume 73, Issue 9, November 2025.ABSTRACT Three‐dimensional (3D) diffraction processing aims at superresolution by imaging small‐scale geological features of the subsurface localized as points and space curves. In analogy to the (anti‐) stationary phase filtering, we separate images of points from images of lines by weighting the Kirchhoff migration.
Pavel Znak, Dirk Gajewski
wiley +1 more source
Some Convergence Theorems of Modified Proximal Point Algorithms for Nonexpansive Mappings in CAT(0) Spaces [PDF]
Results in Nonlinear Analysis, 2018 In this paper, a new modified proximal point algorithm is proposed for finding a common element of the set of fixed points of a single-valued nonexpansive mapping, and the set of fixed points of a multivalued nonexpansive mapping, and the set of ...
Shengquan Weng , Dingping Wu
doaj
Abstract and Applied Analysis, 2014 We investigate the existence of a fixed point of certain contractive multivalued mappings of integral type by using the admissible mapping. Our results generalize the several results on the topic in the literature involving Branciari, and Feng and Liu ...
Muhammad Usman Ali +2 more
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Fixed Point of Almost Contraction in b-Metric Spaces
Journal of Mathematics, 2020 In this paper, we introduce a generalized multivalued (α, L)-almost contraction in the b-metric space. Furthermore, we prove the existence and uniqueness of the fixed point for a specific mapping.
Maryam Iqbal +3 more
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Fixed Point Theory and Applications, 2011 We introduce and study some new Ishikawa-type iterative algorithms with variable coefficients for multivalued generalized -hemicontractive mappings.
Ge Ci-Shui
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Convergence of a Viscosity Iterative Method for Multivalued Nonself-Mappings in Banach Spaces
Abstract and Applied Analysis, 2013 Let be a reflexive Banach space having a weakly sequentially continuous duality mapping with gauge function , a nonempty closed convex subset of , and a multivalued nonself-mapping such that is nonexpansive, where .
Jong Soo Jung
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