Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Andelić, Milica"'
We explicitly construct families of simple modules for Lie algebras of rank $2$, on which certain commutative subalgebra acts diagonally and has a simple spectrum. In type $A$ these modules are well known generic Gelfand-Tsetlin modules and they can
Externí odkaz:
http://arxiv.org/abs/2402.00483
The Laplacian matrix $L$ of a signed graph $G$ may or may not be invertible. We present a combinatorial formula of the Moore-Penrose inverse of $L$. This is achieved by finding a combinatorial formula for the Moore-Penrose inverse of an incidence mat
Externí odkaz:
http://arxiv.org/abs/2311.02792
Publikováno v:
In Linear Algebra and Its Applications 1 August 2024 694:78-100
Publikováno v:
In Linear Algebra and Its Applications 1 May 2024 688:179-194
Publikováno v:
In Journal of Computational and Applied Mathematics 1 May 2024 442
A vertex $v \in V(G)$ is called $\lambda$-main if it belongs to a star set $X \subset V(G)$ of the eigenvalue $\lambda$ of a graph $G$ and this eigenvalue is main for the graph obtained from $G$ by deleting all the vertices in $X \setminus \{v\}$; ot
Externí odkaz:
http://arxiv.org/abs/2012.10969
We revisit results obtained in [F. Harary, U. Peled, Hamiltonian threshold graphs, Discrete Appl.~Math., 16 (1987), 11--15], where several necessary and necessary and sufficient conditions for a connected threshold graph to be Hamiltonian were obtain
Externí odkaz:
http://arxiv.org/abs/2005.09566
Publikováno v:
Linear Algebra Appl. 573 (2019) 26-36
Let G be a graph with undirected and directed edges. Its representation is given by assigning a vector space to each vertex, a bilinear form on the corresponding vector spaces to each directed edge, and a linear map to each directed edge. Two represe
Externí odkaz:
http://arxiv.org/abs/1903.10386
Publikováno v:
Applicable Analysis and Discrete Mathematics, 2021 Oct 01. 15(2), 444-459.
Externí odkaz:
https://www.jstor.org/stable/27090839
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