Results 41 to 50 of about 3,077,553 (314)
The Booleanization of an inverse semigroup
, 2019 We prove that the forgetful functor from the category of Boolean inverse semigroups to inverse semigroups with zero has a left adjoint. This left adjoint is what we term the `Booleanization'.
Lawson, Mark V.
core +1 more source
Squared distance matrices of trees with matrix weights
AKCE International Journal of Graphs and Combinatorics, 2023 Let T be a tree on n vertices whose edge weights are positive definite matrices of order s. The squared distance matrix of T, denoted by Δ, is the ns × ns block matrix with [Formula: see text], where d(i, j) is the sum of the weights of the edges in the ...
Iswar Mahato, M. Rajesh Kannan
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Monatshefte für Mathematik, 2016 Given a bounded domain $D \subset {\mathbb R}^n$ strictly starlike with respect to $0 \in D\,,$ we define a quasi-inversion w.r.t. the boundary $\partial D \,.$ We show that the quasi-inversion is bi-Lipschitz w.r.t. the chordal metric if and only if every "tangent line" of $\partial D$ is far away from the origin.
Gendi Wang, Matti Vuorinen, David Kalaj
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AIMS MathematicsStructural health in civil engineering involved maintaining a structure's integrity and performance over time, resisting loads and environmental effects.
A. Presno Vélez +2 more
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Linear Algebra and its Applications, 1995 An \(S\)-inverse matrix is an inverse-determined matrix having the property that every element in its inverse on or below the main diagonal is negative, whereas every element in the inverse above the main diagonal is positive. The motivation for the investigation of this class comes from recent work in metabolic control analysis.
Thomas J. Lundy +2 more
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Inverse Psoriasis: From Diagnosis to Current Treatment Options
Clinical, Cosmetic and Investigational Dermatology, 2020 Giuseppe Micali, Anna Elisa Verzì, Giorgia Giuffrida, Enrico Panebianco, Maria Letizia Musumeci, Francesco Lacarrubba Dermatology Clinic, University of Catania, Catania, ItalyCorrespondence: Giuseppe MicaliDermatology Clinic, University of Catania,
Micali G +5 more
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Geographic variation in walking activity in the red flour beetle Tribolium castaneum
Population Ecology, EarlyView.This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley +1 more source
The Division Ring Over Conjugate Product
IEEE Access, 2019 In this paper, we investigate the rational fractions in the framework of conjugate product and establish a division ring. Some conjugate properties on the proposed division ring are obtained, and the similarity and consimilarity properties are ...
Ai-Guo Wu, Hui-Zhen Wang, Yu Teng
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Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors
Population Ecology, EarlyView.Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley +1 more source
Mathematics, 2019 Foeplitz and Loeplitz matrices are Toeplitz matrices with entries being Fibonacci and Lucas numbers, respectively. In this paper, explicit expressions of determinants and inverse matrices of Foeplitz and Loeplitz matrices are studied.
Zhaolin Jiang +4 more
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