Results 81 to 90 of about 2,183 (141)
On the Yang-Baxter-like matrix equation for rank-two matrices
Open Mathematics, 2017 Let A = PQT, where P and Q are two n × 2 complex matrices of full column rank such that QTP is singular. We solve the quadratic matrix equation AXA = XAX.
Zhou Duanmei, Chen Guoliang, Ding Jiu
doaj +1 more source
Esophageal Stenting: How I Do It. [PDF]
GE Port J Gastroenterol, 2023 Silva R.
europepmc +1 more source
Forecasting the action of CAR-T cells against SARS-corona virus-II infection with branching process. [PDF]
Model Earth Syst Environ, 2022 Al-Utaibi KA +5 more
europepmc +1 more source
Construction of 4 x 4 symmetric stochastic matrices with given spectra
Open MathematicsThe symmetric stochastic inverse eigenvalue problem (SSIEP) asks which lists of real numbers occur as the spectra of symmetric stochastic matrices. When the cardinality of a list is 4, Kaddoura and Mourad provided a sufficient condition for SSIEP by a ...
Jung Jaewon, Kim Donggyun
doaj +1 more source
conditions for Turing and wave instabilities in reaction-diffusion systems. [PDF]
J Math Biol, 2023 Villar-Sepúlveda E, Champneys AR.
europepmc +1 more source
On the Laplacian index of tadpole graphs
Special MatricesIn this article, we study the Laplacian index of tadpole graphs, which are unicyclic graphs formed by adding an edge between a cycle Ck{C}_{k} and a path Pn{P}_{n}.
Braga Rodrigo O., Veloso Bruno S.
doaj +1 more source
The hyperbolic CS decomposition of tensors based on the C-product
Open MathematicsThis paper studies the issues about the hyperbolic CS decomposition of tensors under the C-product. The aim of this paper is fourfold. Firstly, we establish the CS decomposition of a complex unitary tensor, including the thin version and the standard ...
Jin Hongwei, Chen Siran, Benítez Julio
doaj +1 more source
Block diagonalization of (p, q)-tridiagonal matrices
Special MatricesIn this article, we study the block diagonalization of (p,q)\left(p,q)-tridiagonal matrices and derive closed-form expressions for the number and structure of diagonal blocks as functions of the parameters pp, qq, and nn. This reduction enables efficient
Manjunath Hariprasad
doaj +1 more source
On the spectrum of tridiagonal matrices with two-periodic main diagonal
Special MatricesWe find the spectrum and eigenvectors of an arbitrary irreducible complex tridiagonal matrix with two-periodic main diagonal. This is expressed in terms of the spectrum and eigenvectors of the matrix with the same sub- and superdiagonals and zero main ...
Dyachenko Alexander, Tyaglov Mikhail
doaj +1 more source
Spectral neighbor joining for reconstruction of latent tree Models. [PDF]
SIAM J Math Data Sci, 2021 Jaffe A +5 more
europepmc +1 more source