Results 21 to 30 of about 2,897,129 (311)
Spectrum-preserving additive maps
Linear Algebra and its Applications, 1991 Let \(X,Y\) be Banach spaces over the complex field, and \(B(X),B(Y)\) denote the algebra of bounded linear operators on \(X,Y\) respectively. A map \(\Phi: B(X)\to B(Y)\) is said to be spectrum preserving if \(\sigma(\Phi(T))=\sigma(T)\), for every \(T\in B(X)\). The authors prove the following main result.
Omladič, Matjaž, Šemrl, Peter
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Sum of the spaces on ordered setting
Moroccan Journal of Pure and Applied Analysis, 2020 One of the divergences between topology and ordered topology is that some topological concepts such as separation axioms and continuous maps are defined using open neighborhoods or neighborhoods without any difference, however, they are distinct on the ...
Al-shami T. M.
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Orthogonally additive mappings on Hilbert modules [PDF]
Studia Mathematica, 2014 22 ...
Ilišević, Dijana +2 more
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Journal of Manufacturing and Materials ProcessingAdditively manufactured fibre-reinforced polymers are gaining traction. After the development and optimisation of a novel fibre-deposition system in a laser sintering (LS) setup, polyamide 12 specimens were produced with and without glass fibres. In this
Hellen De Coninck +4 more
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Frontiers in Plant Science, 2021 Genomic prediction of complex traits across environments, breeding cycles, and populations remains a challenge for plant breeding. A potential explanation for this is that underlying non-additive genetic (GxG) and genotype-by-environment (GxE ...
Owen M. Powell +8 more
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Journal of Mathematical Analysis and Applications, 2004 A map \(f\) between Abelian topological groups is called quasi-additive if the function of two variables \(f(x+y)-f(x)-f(y)\) is continuous at the origin. Obvious examples are additive maps, maps which are continuous at the origin, and sums of such maps.
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Rank-permutable additive mappings
Linear Algebra and its Applications, 2006 Additive bijective transformations \(T\) which preserve the matrix relation \[ \text{rk}(A_1 \cdots A_k)= \text{rk}(A_{\sigma(1)} \cdots A_{\sigma(k)}) \] for a fixed integer \(k \geq 2\) and an arbitrary fixed permutation \(\sigma \in S_k\) are classified.
Alieva, Anna A. +2 more
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Orthogonally additive holomorphic maps between C$^{*}$-algebras [PDF]
Studia Mathematica, 2016 Let $A,B$ be C*-algebras, $B_A(0;r)$ the open ball in $A$ centered at $0$ with radius $r>0$, and $H:B_A(0;r)\to B$ an orthogonally additive holomorphic map. If $H$ is zero product preserving on positive elements in $B_A(0;r)$, we show, in the commutative case when $A=C_0(X)$ and $B=C_0(Y)$, that there exist weight functions $h_n$'s and a symbol map $
Bu, Qingying +2 more
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Defect structure process maps for laser powder bed fusion additive manufacturing
, 2020 Accurate detection, characterization, and prediction of defects has great potential for immediate impact in the production of fully-dense and defect free metal additive manufacturing (AM) builds.
J. Gordon +7 more
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Preserving a Comprehensive Vegetation Knowledge Base--An Evaluation of Four Historical Soviet Vegetation Maps of the Western Pamirs (Tajikistan). [PDF]
PLoS ONE, 2016 We edited, redrew, and evaluated four unpublished historical vegetation maps of the Western Pamirs (Tajikistan) by the Soviet geobotanist Okmir E. Agakhanjanz. These maps cover an area of 5,188 km2 and date from 1958 to 1960.
Kim André Vanselow +2 more
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