Results 71 to 80 of about 127,524 (304)
Materials & DesignA novel approach of Metal Additive Manufacturing using Powder Sheet (MAPS) is developed and demonstrated. A flexible metal particle-polymeric binder composite sheet is employed as innovative feedstock in this new method and this approach offers enhanced ...
Wenyou Zhang +13 more
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New Pexiderizations of Drygas’ Functional Equation on Abelian Semigroups
Annales Mathematicae Silesianae, 2023 Let (S, +) be an abelian semigroup, let (H, +) be an abelian group which is uniquely 2-divisible, and let ϕ be an endomorphism of S. We find the solutions f, h : S → H of each of the functional equations f(x+y)+f(x+ϕ(y))=h(x)+f(y)+f∘ϕ(y), x,y∈S,f(x+y)+f ...
Aissi Youssef, Zeglami Driss
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FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Математичні СтудіїLet $\mathcal{R}$ be a prime ring and $L$ a nonzero square closed Lie ideal of $\mathcal{R}$. Suppose $F,G,H\colon \mathcal{R}\to \mathcal{R}$\break are three multiplicative (generalized)-derivations associated with the maps $\delta,g, h\colon \mathcal{R}
B. Dhara
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A Generalized Mazur-Ulam Theorem for Fuzzy Normed Spaces
Abstract and Applied Analysis, 2014 We introduce fuzzy norm-preserving maps, which generalize the concept of fuzzy isometry. Based on the ideas from Vogt, 1973, and Väisälä, 2003, we provide the following generalized version of the Mazur-Ulam theorem in the fuzzy context: let X, Y be fuzzy
J. J. Font +3 more
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On orthogonally additive functions with orthogonally additive second iterate [PDF]
, 2013 Let E be a real inner product space of dimension at least 2.
Baron, Karol
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On the homogeneity of additive mappings
Aequationes Mathematicae, 1976 LetK be a ring with an identity 1 ≠ 0 andM, L two unitaryK-modules. Then, for any additive mappingf:M →L, the setH f :={α ∈ K ∣ f(αx)=αf(x) for allx ∈ M} forms a subring ofK, the ‘homogeneity ring’ off. It is shown that, forM ≠ {0},L ≠ {0} and any subringS ofK for whichM is a freeS-module, there exists an additive mappingf:M→L such thatH f =S.
openaire +2 more sources
A note on commutativity of rings with additive mappings
Arab Journal of Mathematical Sciences, 2013 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ali, Shakir +2 more
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Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
On some equations related to derivations in rings
International Journal of Mathematics and Mathematical Sciences, 2005 Let m and n be positive integers with m+n≠0, and let R be an (m+n+2)!-torsion free semiprime ring with identity element. Suppose there exists an additive mapping D:R→R, such that D(xm+n+1)=(m+n+1)xmD(x)xn is fulfilled for all x∈R, then D is a derivation ...
Joso Vukman, Irena Kosi-Ulbl
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