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1.
The A-like matrices for a Hypercubes
Štefko Miklavič, Paul Terwilliger, 2011, original scientific article

Found in: ključnih besedah
Keywords: A-like matrices, distance-regular graphs, Hypercubes
Published: 15.10.2013; Views: 1653; Downloads: 26
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2.
General preservers of quasi-commutativity on hermitian matrices
Bojan Kuzma, Gregor Dolinar, 2008, original scientific article

Abstract: Let ▫$H_n$▫ be the set of all ▫$n \times n$▫ hermitian matrices over ▫$\mathbb{C}$▫, ▫$n \ge 3$▫. It is said that ▫$A,B \in H_n$▫ quasi-commute if there exists a nonzero ▫$\xi \in \mathbb{C}$▫ such that ▫$AB = \xi BA$▫ Bijective not necessarily linear maps on hermitian matrices which preserve quasi-commutativity in both directions are classified.
Found in: ključnih besedah
Keywords: mathematics, linear algebra, general preserver, hermitian matrices, quasi-commutativity
Published: 03.04.2017; Views: 748; Downloads: 109
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3.
Additive rank-one nonincreasing maps on Hermitian matrices over the field GF(2[sup]2)
Marko Orel, Bojan Kuzma, 2009, original scientific article

Abstract: A complete classification of additive rank-one nonincreasing maps on hermitian matrices over Galois field ▫$GF(2^2)$▫ is obtained. This field is special and was not covered in a previous paper. As a consequence, some known applications, like the classification of additive rank-additivity preserving maps, are extended to arbitrary fields. An application concerning the preservers of hermitian varieties is also presented.
Found in: ključnih besedah
Keywords: mathematics, linear algebra, additive preserver, hermitian matrices, rank, Galois field, weak homomorphism of a graph
Published: 03.04.2017; Views: 852; Downloads: 28
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4.
Nonstandard rank-one nonincreasing maps on symmetric matrices
Marko Orel, 2018, original scientific article

Found in: ključnih besedah
Keywords: quadratic forms, symmetric matrices, preserver problems, finite fields, symmetric tensors, homogeneous polynomials
Published: 17.04.2018; Views: 871; Downloads: 99
URL Full text (0,00 KB)

5.
Rank-one nonincreasing maps on symmetric matrices over a field with two or three elements
Marko Orel, 2018, published scientific conference contribution abstract

Found in: ključnih besedah
Keywords: quadratic forms, symmetric matrices, preserver problems, finite fields, symmetric tensors, homogeneous polynomials
Published: 17.09.2018; Views: 231; Downloads: 6
URL Full text (0,00 KB)

6.
O ekstremnih grafih z dano stopnjo in premerom/ožino
Slobodan Filipovski, 2018, doctoral dissertation

Found in: ključnih besedah
Summary of found: ...problem, spectrum, Moore graphs, asymptotic density, distance matrices, Bermond and Bollobas problem...
Keywords: adjacency matrix, antipodal graphs, cages, excess, defect, Ramanujan graphs, selfrepeats, degree/diameter problem, spectrum, Moore graphs, asymptotic density, distance matrices, Bermond and Bollobas problem
Published: 21.01.2019; Views: 515; Downloads: 0

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