Results 21 to 30 of about 419 (187)

Nearly Ternary Quadratic Higher Derivations on Non-Archimedean Ternary Banach Algebras: A Fixed Point Approach [PDF]

open access: yesAbstract and Applied Analysis, 2011
We investigate the stability and superstability of ternary quadratic higher derivations in non-Archimedean ternary algebras by using a version of fixed point theorem via quadratic functional equation.
M. Eshaghi Gordji   +3 more
doaj   +2 more sources

Superstability of micrometre jets surrounded by a polymeric shell. [PDF]

open access: yesJ Appl Crystallogr
Superstable micrometre compound jets have been produced for serial femtosecond X‐ray crystallography.We have produced superstable compound liquid microjets with a 3D‐printed coaxial flow‐focusing injector. The aqueous jet core is surrounded by a shell, a few hundred nanometres in thickness, of a low‐concentration aqueous solution of a low‐molecular ...
Rubio A   +6 more
europepmc   +2 more sources

Superstability of generalized cauchy functional equations

open access: yesAdvances in Difference Equations, 2011
In this paper, we consider the stability of generalized Cauchy functional equations such as Especially interesting is that such equations have the Hyers-Ulam stability or superstability whether g is identically one or not.
Chung Soon-Yeong, Lee Young-Su
doaj   +2 more sources

Approximate *-derivations and approximate quadratic *-derivations on C*-algebras

open access: yesJournal of Inequalities and Applications, 2011
In this paper, we prove the stability of *-derivations and of quadratic *-derivations on Banach *-algebras. We moreover prove the superstability of *-derivations and of quadratic *-derivations on C*-algebras.
Park Choonkil, Jang Sun
doaj   +1 more source

Thermal-Mechanical Coupling Performance of Heat-Resistant, High-Strength and Printable Al-Si Alloy Antisymmetric Lattice Structure. [PDF]

open access: yesAdv Sci (Weinh)
A newly developed antisymmetric pyramid lattice cell is fabricated by SLM (Selective Laser Melting), and microscopic characterization is conducted using Micro‐CT (Computed Tomography) and SEM (Scanning Electron Microscope). The newAlSi12Fe2.5Ni3Mn4 alloy exhibits excellent properties in high‐temperature environments.
Yan J   +6 more
europepmc   +2 more sources

Superstability of Some Pexider-Type Functional Equation [PDF]

open access: yesJournal of Inequalities and Applications, 2010
We will investigate the superstability of the sine functional equation from the following Pexider-type functional equation ( ), which can be considered the mixed functional equation of the sine and cosine functions, the mixed functional equation of the
Gwang Hui Kim
doaj   +2 more sources

Superstable Theories and Representation

open access: yesSarajevo Journal of Mathematics, 2022
In this paper we give an additional characterizations of the first order complete superstable theories, in terms of an external property called representation. In the sense of the representation property, the mentioned class of first-order theories can be regarded as "not very complicated".
openaire   +2 more sources

Superstability of derivations on Banach ∗-algebras

open access: yesAdvances in Difference Equations, 2017
In this paper, we show that approximate derivations on Banach ∗-algebras are exactly derivations and also show that approximate quadratic ∗-derivations on Banach ∗-algebras are exactly quadratic ∗-derivations by the fixed point theorem.
Sun Young Jang
doaj   +1 more source

Isogeny in superstable groups [PDF]

open access: yesArchive for Mathematical Logic, 2014
We study and develop a notion of isogeny for superstable groups. We prove several fundamental properties of the notion and then use it to formulate and prove uniqueness results. Connections to existing model theoretic notions are explained.
openaire   +3 more sources

Superstability and symmetry

open access: yesAnnals of Pure and Applied Logic, 2016
This paper continues the study of superstability in abstract elementary classes (AECs) satisfying the amalgamation property. In particular, we consider the definition of $μ$-superstability which is based on the local character characterization of superstability from first order logic.
openaire   +3 more sources

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