Results 21 to 30 of about 11,694 (136)
Supporting weakly Pareto optimal allocations in infinite dimensional nonconvex economies [PDF]
, 2006 International audienceIn this paper, we prove a new version of the Second Welfare Theorem for economies with a finite number of agents and an infinite number of commodities, when the preference correspondences are not convex-valued and/or when the total ...
Florenzano, Monique +2 more
core +3 more sources
Discrete Dynamics in Nature and Society, 2017 The existence and uniqueness results of two fractional Hahn difference boundary value problems are studied. The first problem is a Riemann-Liouville fractional Hahn difference boundary value problem for fractional Hahn integrodifference equations.
Nichaphat Patanarapeelert +1 more
doaj +1 more source
Advances in Difference Equations, 2017 In this paper, we study a boundary value problem for second-order nonlinear Hahn integro-difference equations with nonlocal integral boundary conditions. Our problem contains two Hahn difference operators and a Hahn integral. The existence and uniqueness
Umaphon Sriphanomwan +4 more
doaj +1 more source
A characterization of random approximations
International Journal of Mathematics and Mathematical Sciences, 1999 By using Hahn-Banach theorem, a characterization of random approximations is obtained.
Ismat Beg
doaj +1 more source
Mathematics, 2022 As is well-known, unlike the one-dimensional case, there exist nonnegative polynomials in several real variables that are not sums of squares. First, we briefly review a method of approximating any real-valued nonnegative continuous compactly supported ...
Octav Olteanu
doaj +1 more source
Support theorems in abstract settings [PDF]
, 2017 In this paper we establish a general framework in which the verification of support theorems for generalized convex functions acting between an algebraic structure and an ordered algebraic structure is still possible.
Olbryś, Andrzej, Páles, Zsolt
core +2 more sources
Note on the Hahn-Banach Theorem in a Partially Ordered Vector Space
Journal of Applied Mathematics, 2013 Using a fixed point theorem in a partially ordered set, we give a new proof of the Hahn-Banach theorem in the case where the range space is a partially ordered vector space.
Toshiharu Kawasaki +2 more
doaj +1 more source
The Tracial Hahn-Banach Theorem, Polar Duals, Matrix Convex Sets, and Projections of Free Spectrahedra [PDF]
, 2016 This article investigates matrix convex sets and introduces their tracial analogs which we call contractively tracial convex sets. In both contexts completely positive (cp) maps play a central role: unital cp maps in the case of matrix convex sets and ...
Helton, J. William +2 more
core +1 more source
Very smooth points of spaces of operators [PDF]
, 2003 In this paper we study very smooth points of Banach spaces with special emphasis on spaces of operators. We show that when the space of compact operators is an $M$-ideal in the space of bounded operators, a very smooth operator $T$ attains its norm at a ...
Rao, T. S. S. R. K.
core +2 more sources
The Hahn-Banach Extension Theorem for Fuzzy Normed Spaces Revisited
Abstract and Applied Analysis, 2014 This paper deals with fuzzy normed spaces in the sense of Cheng and Mordeson. We characterize fuzzy norms in terms of ascending and separating families of seminorms and prove an extension theorem for continuous linear functionals on a fuzzy normed space.
Carmen Alegre, Salvador Romaguera
doaj +1 more source