Noncompact mappings and cones in Banach spaces

  • 23 Pages
  • 2.80 MB
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  • English
by
Statementby John David Hamilton.
Classifications
LC ClassificationsMicrofilm 40235 (Q)
The Physical Object
FormatMicroform
Paginationiii, 23 leaves.
ID Numbers
Open LibraryOL2162328M
LC Control Number88893585

Noncompact mappings and cones in Banach spaces John David Hamilton 1 Archive for Rational Mechanics and Analysis vol pages – () Cite this articleCited by:   adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86ACited by: In Context 4, a strong Banach-Stone map T: Cu b (X,E) → Cu b (Y,F) is said to be uniform if both φ and φ−1 are uniformly continuous.

Multipliers and centralizer. For a Banach space B, we denote by Ext B the set of extreme points of the closed unit ball of its dual B0. Definition Given a Banach space B, a continuous linear operator T. L-S Theorem: Let G be an open subset of the Banach space X, C a mapping of \(\overline G \times [0,1] \) into X whose image is precompact and such that if C t (x) = C(x, t), each mapping C t of \(\overline G \) into X has no fixed points on the boundary of G.

Then if I — C 0 is a homeomorphism of G on an open set of X containing 0, the equation (I — C 1) u = 0 has a solution u in G (i.e Cited by: This book offers an elementary and self-contained introduction to many fundamental issues concerning approximate solutions of operator equations formulated in an Noncompact mappings and cones in Banach spaces book Banach space setting.

Recall that a Banach space X is said to satisfy Opials property if the following inequality holds for any distinct elements x and y in X and for each sequence fxngweakly convergent to x: limsup n!¥ jjxn xjjBanach space X, the mappings Ti(i = 1,2) on.

Semi-numerical Approximation Structures for Nonlinear Noncompact Operators in Banach Spaces Article in Numerical Functional Analysis and Optimization Nos. 7 & 8(). In this paper, we introduce certain conditions for multivalued nonexpansive mappings in uniformly convex Banach spaces which assure convergence of Mann iterates to a fixed point.

Download full text in PDF Download. Advanced. In this paper, we define a generalized relative degree for A-proper mappings from a relative open subset of a Banach space into another Banach space and introduce the concepts of generalized P-compact and P1-compact mappings.

Next, we show several existence theorems of positive solutions for the equations involving these mappings. Our theorems improve and extend some recent results.

Vol () Brouwer’s Fixed Point Theorem Fails 2. Preliminaries Let Xbe a Banach space of finite or infinite Bstays for the unit ball and S for the unit sphere.

If the dimension X is finite dimX = nwe use B= Bn and S= Sn−1. The Brouwer’s Theorem has a. In this paper, we study a class of nonlinear operator equations with more extensive conditions in ordered Banach spaces. By using the cone theory and Banach contraction mapping principle, the existence and uniqueness of solutions for such equations are investigated without demanding the existence of upper and lower solutions and compactness and continuity conditions.

We note that if is a Hilbert space, then is equal to the identity mapping, is -uniformly convex and -uniformly smooth Banach space. Therefore, our technique allows discussing some sweeping process problems with noncompact perturbation in Hilbert spaces or in Banach spaces, whether the moving set depends on time or on time and state.

We have proven an existence theorem concerning the existence of solutions for a functional evolution inclusion governed by sweeping process with closed convex sets depending on time and state and with a noncompact nonconvex perturbation in Banach spaces.

This work extends some recent existence theorems concerning sweeping processes from Hilbert spaces setting to Banach spaces setting.

This article is concerned with the existence of fixed points of compact operators mapping a cone in a Banach space into itself.

Applications to two-point boundary value problems in ordinary. We consider a new type of monotone nonexpansive mappings in an ordered Banach space X with partial order ⪯.

This new class of nonlinear mappings properly contains nonexpansive, firmly-nonexpansive and Suzuki-type generalized nonexpansive mappings and partially extends α-nonexpansive mappings.

We obtain some existence theorems and weak and strong convergence.

Description Noncompact mappings and cones in Banach spaces EPUB

In C*-Algebras and their Automorphism Groups (Second Edition), Recall that a partially ordered Banach space E over the reals satisfies the Riesz decomposition property if for any three positive elements a, b, and c in E with a ⩽ b + c, there is a decomposition a = d + e in E with d ⩽ b and e ⩽ E is a vector lattice, it has the Riesz decomposition, and if E satisfies.

In [15], Zhang investigated the existence and uniqueness of solutions for a class of nonlinear operator equations = in ordered Banach space, by using the cone theory and Banach contraction mapping.

Hence, by Remarkwe obtain that every Banach contraction (3) satisfies the contraction condition (4).

On the other side in Examplewe present a metric space and a mapping T which is not F 1-contraction (Banach contraction), but still is an F 2-contraction. Consequently, Theorem gives the family of contractions which in general are.

subset in a normal vector space!, a Banach space, and a continuous set-valued mapping dened on S and with nonempty compact convex values () be a sequence of thatconvergesweaklyto in and ()asequencein thatconvergesstronglyto in suchthat () asequencein S thatconvergesto R (),then R ().

Lemma (see [,Lemma. The normed space X is called reflexive when the natural map {: → ″ () = ∀ ∈, ∀ ∈ ′is surjective. Reflexive normed spaces are Banach spaces. Theorem. If X is a reflexive Banach space, every closed subspace of X and every quotient space of X are reflexive.

This is a consequence of the Hahn–Banach theorem. Further, by the open mapping theorem, if there is a bounded linear. Geometry of Banach Spaces, Duality Mappings and Nonlinear Problems (Mathematics and Its Applications (62)) th Edition by I. Cioranescu (Author) ISBN   Ordered Banach spaces.

Normal cones. Decreasing operators. Noncompact operators. Monotone approximations. Sublinear and superlinear mappings (perturbed) Hammerstein integral equations. Discretization methods. Recommended articles Citing articles (0). JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATI () On the Indices of Fixed Points of Mappings in Cones and Applications E.

DANCER Department of Mathematics, University of New England, Armidale, New South Wales, Australia Submitted by C. Dotph Assume that A' is a cone in a Banach space and A.K-^K is completely continuous. Smooth Banach spaces.- 4.

Duality mappings on Banach spaces.- 5. Positive duality mappings.- Exercises.- Bibliographical comments.- II Characterizations of Some Classes of Banach Spaces by Duality Mappings.- 1.

Strictly convex Banach spaces.- 2. Uniformly convex Banach spaces.- 3. Duality mappings in reflexive Banach spaces.- 4.

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Duality. Browder FE. FIXED-POINT THEOREMS FOR NONCOMPACT MAPPINGS IN HILBERT SPACE. Proc Natl Acad Sci U S A. Jun; 53 (6)– [PMC free article] Minty GJ. ON A "MONOTONICITY" METHOD FOR THE SOLUTION OF NONLINEAR EQUATIONS IN BANACH SPACES. Proc Natl Acad Sci U S A. Dec; 50 (6)– [PMC free article].

Smooth Banach spaces.- § 4. Duality mappings on Banach spaces.- § 5. Positive duality mappings.- Exercises.- Bibliographical comments.- II Characterizations of Some Classes of Banach Spaces by Duality Mappings.- § 1.

Strictly convex Banach spaces.- § 2. Uniformly convex Banach spaces.- § 3. Duality mappings in reflexive Banach spaces.- § 4. Banach space to another, especially from a Banach space to itself. Some of surjective, and Xis a Banach space so by the open mapping theorem T: X. T(X) is an open map. Let Tx2T(X).

As T is an open map, T(B 1(x)) is open, and hence T(B 1(x)) is a neighborhood of Tx. But because Tis compact. This is definitely a book that anyone interested in Banach space theory (or functional analysis) should have on his/her desk.” (Sophocles Mercourakis, Mathematical Reviews, Issue h) “This book is a German-style introduction to Banach Spaces.

The authors have tried to include everything that might be useful in applications in Reviews: 1. They tend to be more significant than results obtained by directly appealing to the completeness.

Note that not every normed space that is a Baire space is a Banach space.

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2 Theorem (open mapping theorem) Let, be Banach spaces. CHAPTER 3. BANACH SPACES 5 Thus fn!f. Exercise Let ffngn2N be a Cauchy sequence in a normed space X.

Show that there exists a subsequence ffn k gk2N such that 8k2 N; kfn k+1 kfn k k n1 such that m;n n2 =) kfm fnk. Let \(L_\rho \) be a modular function space where \(\rho \) is a function modular satisfying the \(\Delta _2\)-type condition and is of s-convex type for \(s\in (0,1]\) (see Definition 2 and Remark ).

Under this framework, the existence of fixed points for asymptotically regular mappings defined on some classes of subsets of \(L_\rho \) is proved. As a consequence, some previous fixed point.uniformly smooth Banach space. er efore, our technique allows discussing some sweeping process problems with noncompact perturbation in Hilbert spaces or in Banach spaces, whether the moving set depends on time or on time and state.

e paper is organized as follows. Section is devoted to somede ion, we.