AbstractSplitting algorithms for finding a zero of sum of operators often
involve multiple steps which are referred to as forward or backward steps.
Forward steps are the explicit use of the operators and backward steps involve
the operators implicitly via their resolvents. In this paper, we study an
adaptive splitting algorithm for finding a zero of the sum of three operators.
We assume that two ... hiện toàn bộ
AbstractThis paper studies uniqueness of solutions for a nonlinear Hadamard-type
integro-differential equation in the Banach space of absolutely continuous
functions based on Babenko’s approach and Banach’s contraction principle. We
also include two illustrative examples to demonstrate the use of main theorems.
AbstractIn the setting of$\operatorname{CAT}(\kappa)$CAT(κ)spaces, common fixed
point iterations built from prox mappings (e.g. prox-prox, Krasnoselsky–Mann
relaxations, nonlinear projected-gradients) converge locally linearly under the
assumption of linear metric subregularity. Linear metric subregularity is in any
case necessary for linearly convergent fixed point sequences, so the result is
tig... hiện toàn bộ
AbstractString-averaging is an algorithmic structure used when handling a family
of operators in situations where the algorithm in hand requires to employ the
operators in a specific order. Sequential orderings are well known, and a
simultaneous order means that all operators are used simultaneously (in
parallel). String-averaging allows to use strings of indices, constructed by
subsets of the ind... hiện toàn bộ
AbstractThis paper provides a well-posedness analysis for a hemivariational
inequality of the stationary Navier-Stokes equations by arguments of convex
minimization and the Banach fixed point. The hemivariational inequality
describes a stationary incompressible fluid flow subject to a nonslip boundary
condition and a Clarke subdifferential relation between the total pressure and
the normal compone... hiện toàn bộ
Tóm tắtTrong bài báo này, chúng tôi giới thiệu một phương pháp phân tách
tiến-lùi lặp mới với sai số để giải quyết vấn đề bao gồm biến phân của tổng hai
toán tử đơn điệu trong không gian Hilbert thực. Chúng tôi đề xuất và phân tích
phương pháp này dưới một số điều kiện nhẹ nhàng thích hợp áp dụng cho các tham
số, sao cho một định lý hội tụ mạnh khác cho những vấn đề này được thiết lập.
Chúng tôi c... hiện toàn bộ
AbstractWe consider an abstract inclusion in a real Hilbert space, governed by
an almost history-dependent operator and a time-dependent multimapping with
prox-regular values. We establish the unique solvability of the inclusion under
appropriate assumptions on the data. The proof is based on the arguments of
monotonicity, fixed point, and prox-regularity. We then use our result in order
to deduce... hiện toàn bộ
AbstractLet A and B be two nonempty subsets of a normed space X, and let $T: A
\cup B \to A \cup B$ T : A ∪ B → A ∪ B be a cyclic (resp., noncyclic) mapping.
The objective of this paper is to establish weak conditions on T that ensure its
relative nonexpansiveness.The idea is to recover the results mentioned in two
papers by Matkowski (Banach J. Math. Anal. 2:237–244, 2007; J. Fixed Point
Theory A... hiện toàn bộ
AbstractIn this article, we present an approach to solve a wide range of
nonlinear equations formulated in extended b-metric spaces based on a new
fixed-point theorem on these spaces. This research effort was motivated by
challenges arising in solving pattern problems efficiently that can not be
addressed by using standard metric spaces. Our approach relies on a novel common
fixed-point theorem fo... hiện toàn bộ
AbstractLet E be a strictly convex real Banach space and let $D\subseteq E$ D ⊆
E be a nonempty closed convex subset of E. Let $T_{i}: {D}\longrightarrow
\mathcal{P}({D})$ T i : D ⟶ P ( D ) , $i=1,2,3,\ldots $ i = 1 , 2 , 3 , … be a
countable family of quasinonexpansive multivalued maps that are continuous with
respect to the Hausdorff metric, $\mathcal{P}(D)$ P ( D ) is the family of
proximinal a... hiện toàn bộ