Isospectral matrix flow maintaining staircase structure and total positivity of an initial matrix
Linear Algebra and its Applications, 2017 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Moghaddam, Mahsa R. +2 more
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Totally positive completions for monotonically labeled block clique graphs [PDF]
, 2009 It is shown that if the connected graph of the specified entries of a combinatorially symmetric, partial totally positive matrix is monotonically labeled block clique, then there is a totally positive completion.
Johnson, Charles R. +2 more
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Square matrices with the inverse diagonal property
Kuwait Journal of ScienceWe identify the class of real square invertible matrices A for which the signs of the diagonal entries of A−1 match those of A, and begin their study. We say such matrices have the inverse diagonal property (IDP).
Susana Furtado +3 more
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Total positivity, spherical series, and hypergeometric functions of matrix argument
Journal of Approximation Theory, 1989 The paper is concerned with establishing the total positivity of a real function \(K(x,y)=f(xy)\), where f is analytic. With f there is, for each positive integer n, associated a certain spherical series \(\psi_{n,f}\) on a subset of \(S_ n\), the space of Hermitian \(n\times n\) matrices.
Gross, Kenneth I, Richards, Donald St.P
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Source Apportionment of One-Hour Semi-Continuous Data Using Positive Matrix Factorization with Total Mass (Nonvolatile plus Semi-Volatile) Measured by the R&P FDMS Monitor [PDF]
Aerosol Science and Technology, 2008 Positive matrix factorization (PMF) was used to elucidate sources of fine particulate material (PM 2.5 ) for a study conducted during July 2003 in Rubidoux, CA. One-h averaged semi-continuous measurements were made with a suite of instruments to provide PM 2.5 mass and chemical composition data.
Brett D. Grover, Delbert J. Eatough
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The totally nonnegative completion problem [PDF]
, 1998 An n-by-n real matrix is said to be totally positive (nonnegative) if every minor (principal and non-principal) is positive (nonnegative). The totally nonnegative completion problem asks which partially totally nonnegative matrices have a completion to a
Johnson, Charles R +5 more
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AxiomsThe approach to solving linear systems with structured matrices by means of the bidiagonal factorization of the inverse of the coefficient matrix is first considered in this review article, the starting point being the classical Björck–Pereyra algorithms
José-Javier Martínez
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PLoS ONE, 2014 BackgroundPeriostin was proved to play an important role in extra-cellular matrix remodeling after acute myocardial infarction (AMI). Myocardial periostin was markedly up-regulated after AMI and participated in the maladaptive process of cardiac ...
Lin Ling +3 more
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The Investigation of the Impact of the Social Capital Aspects on the Performance of Agricultural and Industrial Cooperatives in Boyer-Ahmad County [PDF]
جامعه شناسی کاربردی, 2017 Introduction Making over tenets and assessments of cooperation and its functions,the mutual relationship between development of cooperativesand various forms of assetsis understood.
Asghar Mirfardi +2 more
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Factorization of totally positive, symmetric, periodic, banded matrices with applications [PDF]
, 1993 We show that a totally positive, symmetric, periodic, banded matrix A can be factored in a symmetric manner into positive one-banded periodic factors and deduce from this that A has positive eigenvalues with certain restrictions on their coincidence and ...
Goodman, T.N.T., Sharma, A.
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