Results 11 to 20 of about 179 (144)
Stability and Superstability of a Linear Functional Equation on Restricted Domains
Journal of Function SpacesThis paper investigates the Hyers–Ulam stability and superstability of the functional equation fx2+yfz=xfx+zfy for real-valued functions f:R⟶R on some restricted subsets of R.
Abbas Najati +2 more
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Superstability of micrometre jets surrounded by a polymeric shell. [PDF]
J Appl CrystallogrSuperstable 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
Thermal-Mechanical Coupling Performance of Heat-Resistant, High-Strength and Printable Al-Si Alloy Antisymmetric Lattice Structure. [PDF]
Adv 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
Chemistry of 3,5‐Dichloro‐4H‐1,2,6‐thiadiazine‐4‐thione
ChemistrySelect, Volume 8, Issue 45, December 5, 2023., 2023 3,5‐Dichloro‐4H‐1,2,6‐thiadiazine‐4‐thione was prepared by thionation of 3,5‐dichloro‐4H‐1,2,6‐thiadiazine‐4‐one. The chemistry of this thione was briefly investigated under thermal conditions and treatment with carbon nucleophiles, dienes and triphenylphosphine. The structures of several new products is supported by X‐ray crystallography.
Andreas S. Kalogirou +2 more
wiley +1 more source
Superstability of derivations on Banach ∗-algebras
Advances 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
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Approximately Ternary Homomorphisms on C*-Ternary Algebras
Abstract and Applied Analysis, 2013 Gordji et al. established the Hyers-Ulam stability and the superstability of C*-ternary homomorphisms and C*-ternary derivations on C*-ternary algebras, associated with the following functional equation: fx2-x1/3+fx1-3x3/3+f3x1+3x3-x2/3=fx1, by the ...
Eon Wha Shim +4 more
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Superstability of $m$-additive maps on complete non--Archimedean spaces [PDF]
Sahand Communications in Mathematical Analysis, 2015 The stability problem of the functional equation was conjectured by Ulam and was solved by Hyers in the case of additive mapping. Baker et al. investigated the superstability of the functional equation from a vector space to real numbers.In this paper ...
Ismail Nikoufar
doaj
Annals 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 $ $-superstability which is based on the local character characterization of superstability from first order logic.
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Superstability of functional equations related to spherical functions
Open Mathematics, 2017 In this paper we prove stability-type theorems for functional equations related to spherical functions. Our proofs are based on superstability-type methods and on the method of invariant means.
Székelyhidi László
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Annals of Pure and Applied Logic, 1986 This paper is an important contribution to the theory of stable groups. Powerful use is made of Lascar's U-rank, enabling new results as well as generalizations of the finite rank theory to be proved for arbitrary superstable groups. From now on let G denote a (saturated) superstable group (possibly with additional structure). A fundamental observation
Berline, Ch., Lascar, D.
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