Results 111 to 120 of about 142,886 (250)
Generalized Hyers-Ulam Stability of Quadratic Functional Inequality
Abstract and Applied Analysis, 2013 We establish the general solution of the functional inequality and then investigate the generalized Hyers-Ulam stability of this inequality in Banach spaces and in non-Archimedean Banach spaces.
Hark-Mahn Kim +2 more
doaj +1 more source
Lorentz type spaces of ultrasmooth vectors of closed operators
Karpatsʹkì Matematičnì Publìkacìï, 2012 Lorentz type spaces of ultrasmooth vectors of closed operators in Banach spaces are defined. Interpolation properties of such spaces are established and their application to the decision of problem of approaching of elements of Banach space is shown ...
M. I. Dmytryshyn, O. V. Lopushansky
doaj +1 more source
Representations of a semisimple Lie group on a Banach space. I [PDF]
, 1953 Harish-chandra Harish-Chandra
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The three‐dimensional Seiberg–Witten equations for 3/2$3/2$‐spinors: A compactness theorem
Mathematische Nachrichten, Volume 298, Issue 10, Page 3331-3375, October 2025.Abstract The Rarita‐Schwinger–Seiberg‐Witten (RS–SW) equations are defined similarly to the classical Seiberg–Witten equations, where a geometric non–Dirac‐type operator replaces the Dirac operator called the Rarita–Schwinger operator. In dimension 4, the RS–SW equation was first considered by the second author (Nguyen [J. Geom. Anal. 33(2023), no. 10,
Ahmad Reza Haj Saeedi Sadegh +1 more
wiley +1 more source
Banach-Saks Type and Gurariǐ Modulus of Convexity of Some Banach Sequence Spaces
Abstract and Applied Analysis, 2014 Banach-Saks type is calculated for two types of Banach sequence spaces and Gurariǐ modulus of convexity is estimated from above for the spaces of one type among them.
Henryk Hudzik +3 more
doaj +1 more source
Reflexive Banach spaces not isomorphic to uniformly convex spaces [PDF]
, 1941 Mahlon M. Day
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Criteria for Banach spaces [PDF]
Pacific Journal of Mathematics, 1972 Valentine, J. E., Wayment, S. G.
openaire +3 more sources
Existence of Weak Solutions for a Degenerate Goursat‐Type Linear Problem
Mathematical Methods in the Applied Sciences, Volume 48, Issue 15, Page 14334-14341, October 2025.ABSTRACT For a generalization of the Gellerstedt operator with mixed‐type Dirichlet boundary conditions to a suitable Tricomi domain, we prove the existence and uniqueness of weak solutions of the linear problem and for a generalization of this problem.
Olimpio Hiroshi Miyagaki +2 more
wiley +1 more source
On extreme contractions between real Banach spaces
, 2018 We completely characterize extreme contractions between two-dimensional strictly convex and smooth real Banach spaces, perhaps for the very first time. In order to obtain the desired characterization, we introduce the notions of (weakly) compatible point
Mal, Arpita +2 more
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