Results 21 to 30 of about 11,878,887 (322)
The Nullity, Rank, and Invertibility of Linear Combinations of k-Potent Matrices
Baksalary et al. (Linear Algebra Appl., doi:10.1016/j.laa.2004.02.025, 2004) investigated the invertibility of a linear combination of idempotent matrices. This result was improved by Koliha et al.
Marina Tošić +3 more
doaj +1 more source
Spatial analysis of Environmental Suitability of Shiraz City Using Environmental Suitability Analysis [PDF]
Urban Physical development has been the major concern of urban planners during recent years, therefore, better understanding of urban and its development is necessary for sustainable development.
Dr.Mohammadreza Rezaei +2 more
doaj +1 more source
Linearly combining multiple biomarkers is a common practice that can provide a better diagnostic performance. When the number of biomarkers is sufficiently high, a computational burden problem arises. Liu et al. proposed a distribution-free approach (min–
Rocío Aznar-Gimeno +4 more
doaj +1 more source
Compact linear combination of composition operators on Bergman spaces
Motivated by the question of Shapiro and Sundberg raised in 1990, study on linear combinations of composition operators has been a topic of growing interest.
B. Choe, H. Koo, Maofa Wang
semanticscholar +1 more source
The invariant measure of homogeneous Markov processes in the quarter-plane: Representation in geometric terms [PDF]
We consider the invariant measure of a homogeneous continuous-time Markov process in the quarter-plane. The basic solutions of the global balance equation are the geometric distributions.
Boucherie, Richard J. +2 more
core +10 more sources
With the development of cloud computing and internet of things technology, verifiable computing has been widely used as a new computing technology. While verifiable computing brings convenience to users, there are also security challenges: data privacy ...
Tianpeng ZHANG, Zhiyu REN, Xuehui DU, Haichao WANG
doaj +5 more sources
On the singular factor of a linear combination of holomorphic functions [PDF]
We prove that the linear combinations of functions $f_0,...,f_n$ in $H^\infty$ have "few" singular inner factors, provided that the $f_j$'s are suitably smooth up to the boundary, while in general this is no longer true.Comment: 4 ...
Dyakonov, Konstantin M.
core +3 more sources
Combining Linear and Nonlinear Diffusion [PDF]
Abstract In this paper we study a generalized porous medium equation where the diffusion rate, say m(x) -spatially heterogeneous- is assumed to be linear, m = 1, on a piece of the support domain, Ω1 and slow nonlinear, m(x) > 1, in its complement, Ωm := Ω \ Ω̄1.
Delgado Delgado, Manuel +2 more
openaire +3 more sources
Topological charge of a linear combination of optical vortices: topological competition.
We theoretically show that optical vortices conserve the integer topological charge (TC) when passing through an arbitrary aperture or shifted from the optical axis of an arbitrary axisymmetric carrier beam.
V. Kotlyar, A. Kovalev, A. Volyar
semanticscholar +1 more source
Partially Linear Models under Data Combination
Abstract We study partially linear models when the outcome of interest and some of the covariates are observed in two different datasets that cannot be linked. This type of data combination problem arises very frequently in empirical microeconomics.
D'Haultfoeuille, Xavier +2 more
openaire +4 more sources

