Results 31 to 40 of about 2,396 (56)

Fixed Point Technique: Stability Analysis of Quadratic Functional Equation in Various Quasi‐Banach Spaces

Journal of Mathematics, Volume 2025, Issue 1, 2025.
In this present work, we derive the solution of a quadratic functional equation and investigate the Ulam stability of this equation in Banach spaces using fixed point and direct techniques. Mainly, we examine the stability results in quasi‐β‐Banach spaces and quasi‐fuzzy β‐Banach spaces by means of direct method as well as quasi‐Banach spaces by means ...
Kandhasamy Tamilvanan, Faruk Özger, S. A. Mohiuddine, Naeem Ahmad, Masho Jima Kabeto, Valerii Obukhovskii   +5 more
wiley   +1 more source

Postquantum Br\`{e}gman relative entropies and nonlinear resource theories

, 2019
We introduce the family of postquantum Br\`{e}gman relative entropies, based on nonlinear embeddings into reflexive Banach spaces (with examples given by reflexive noncommutative Orlicz spaces over semi-finite W*-algebras, nonassociative L$_p$ spaces ...
Kostecki, Ryszard Paweł
core  

Projective completions of Jordan pairs Part II. Manifold structures and symmetric spaces

, 2004
We define symmetric spaces in arbitrary dimension and over arbitrary non-discrete topological fields $\K$, and we construct manifolds and symmetric spaces associated to topological continuous quasi-inverse Jordan pairs and -triple systems.
Bertram, Wolfgang, Neeb, Karl-Hermann
core   +1 more source

Factorization of operators on $C^*$-algebras

, 1997
Let $A$ be a $C^*$-algebra. It is shown that every absolutely summing operator from $A$ into $\ell_2$ factors through a Hilbert space operator that belongs to the 4-Schatten- von Neumann class.
Randrianantoanina, Narcisse
core   +1 more source

The Role of the Mizar Mathematical Library for Interactive Proof Development in Mizar. [PDF]

J Autom Reason, 2018
Bancerek G, Byliński C, Grabowski A, Korniłowicz A, Matuszewski R, Naumowicz A, Pąk K.   +6 more
europepmc   +1 more source

Orientation in operator algebras. [PDF]

Proc Natl Acad Sci U S A, 1998
Alfsen EM, Shultz FW.
europepmc   +1 more source

Modular geodesics and wedge domains in non-compactly causal symmetric spaces. [PDF]

Ann Glob Anal Geom (Dordr)
Morinelli V, Neeb KH, Ólafsson G.
europepmc   +1 more source

Compact operators on the Jordan totient sequence spaces

Mathematical Methods in the Applied Sciences, 2021
Merve İlkhan Kara, Emrah Evren Kara, Fuat Usta   +2 more
exaly  

On James and Jordan–von Neumann constants and the normal structure coefficient of Banach spaces

Studia Mathematica, 2001
Lech Maligranda
exaly  

On some modifications of n-th von Neumann–Jordan constant for Banach spaces

Banach Journal of Mathematical Analysis, 2020
Ryszard Płuciennik
exaly