Results 31 to 40 of about 4,312,015 (293)
Direct imaging of ultrafast electron dynamics by X-ray sum frequency generation [PDF]
EPJ Web of Conferences, 2019 We present a nonlinear X-ray technique which provides a spatial electron density image of valence electron excitations. The technique combines a visible pump and an X-ray pulse and yields snapshots of the transition charge densities.
Rouxel Jérémy R. +3 more
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ϵ-Condition Pseudospectra of the Direct Sum Operators
, 2022 In this paper, the relationships between e-condition pseudospectrum and e-condition pseudospectral radius of the direct sum of bounded operators in the direct sum of Banach spaces and its coordinate operators are researched. In general case, it is proved
İpek Al, Pembe, İsmailov, Zameddin
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Intuitionistic fuzzy G-modules with respect to norms (T and S) [PDF]
Notes on IFS, 2023 In this paper, we introduced intuitionistic fuzzy G-modules on M under norms (t-norm T and s-conorm S) and some related results like intersection, sum and direct sum of them has also been discussed.
Rasul Rasuli
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On Some Results of a Torsion-Free Abelian Kernel Group
Recoletos Multidisciplinary Research Journal, 2014 In [6], for any torsion-free abelian groups Gand H, the kernel of Hin GisfHGGHHomfker, ker,. The kernel of Hin Gis a pure fully invariant subgroup of G.
Ricky B. Villeta
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Generalization of equitable efficiency in multiobjective optimization problems by the direct sum of matrices [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2023 We suggest an a priori method by introducing the concept of AP - equitable efficiency. The preferences matrix AP , which is based on the partition P of the index set of the objective functions, is given by the decision-maker.
F. Ahmadi +2 more
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Proximinality in generalized direct sums [PDF]
International Journal of Mathematics and Mathematical Sciences, 2004 We consider proximinality and transitivity of proximinality for subspaces of finite codimension in generalized direct sums of Banach spaces. We give several examples of Banach spaces where proximinality is transitive among subspaces of finite codimension.
Darapaneni Narayana, T. S. S. R. K. Rao
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Notes about Quasi-Mixing Operators [PDF]
Sahand Communications in Mathematical AnalysisIn this article, we introduce quasi-mixing operators and construct various examples. We prove that quasi-mixing operators exist on all finite-dimensional and infinite-dimensional Banach spaces.
Mansooreh Moosapoor, Ismail Nikoufar
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BEST APPROXIMATION IN QUASI TENSOR PRODUCT SPACE AND DIRECT SUM OF LATTICE NORMED SPACES [PDF]
Journal of Algebraic Systems, 2014 We study the theory of best approximation in tensor product and the direct sum of some lattice normed spacesX_{i}. We introduce quasi tensor product space anddiscuss about the relation between tensor product space and thisnew space which we denote it by ...
Mahdi Iranmanesh, Fateme Solimani
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The direct sum order in regular modules
, 2020 In this paper, we define the direct sum relation on a module and prove that this is a partial order when the module is regular. We also focus on a regular support and a strong regular support of an element in a module, which are extensions of a ...
Harmanci, Abdullah +2 more
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The direct sum of $q$-matroids [PDF]
, 2022 For classical matroids, the direct sum is one of the most straightforward methods to make a new matroid out of existing ones. This paper defines a direct sum for $q$-matroids, the $q$-analogue of matroids.
Jurrius, Relinde, Ceria, Michela
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