Results 11 to 20 of about 1,724,110 (280)
On the graph condition regarding the $F$-inverse cover problem [PDF]
, 2015 In their paper titled "On $F$-inverse covers of inverse monoids", Auinger and Szendrei have shown that every finite inverse monoid has an $F$-inverse cover if and only if each finite graph admits a locally finite group variety with a certain property. We
Szakács, Nóra
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Robust Prediction of Single and Multiple Point Protein Mutations Stability Changes
Biomolecules, 2019 Accurate prediction of protein stability changes resulting from amino acid substitutions is of utmost importance in medicine to better understand which mutations are deleterious, leading to diseases, and which are neutral.
Óscar Álvarez-Machancoses +3 more
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Characterizations of the group invertibility of a matrix revisited
Demonstratio Mathematica, 2022 A square complex matrix AA is said to be group invertible if there exists a matrix XX such that AXA=AAXA=A, XAX=XXAX=X, and AX=XAAX=XA hold, and such a matrix XX is called the group inverse of AA.
Tian Yongge
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Inverse semigroups with idempotent-fixing automorphisms [PDF]
, 2013 A celebrated result of J. Thompson says that if a finite group $G$ has a fixed-point-free automorphism of prime order, then $G$ is nilpotent. The main purpose of this note is to extend this result to finite inverse semigroups.
Araujo, Joao, Kinyon, Michael
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Integrable models for shallow water with energy dependent spectral problems [PDF]
, 2012 We study the inverse problem for the so-called operators with energy depending potentials. In particular, we study spectral operators with quadratic dependance on the spectral parameter.
Ivanov, Rossen I., Lyons, Tony
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A class of singular Ro-matrices and extensions to semidefinite linear complementarity problems [PDF]
Yugoslav Journal of Operations Research, 2013 For ARnxn and qRn, the linear complementarity problem LCP(A, q) is to determine if there is xRn such that x ≥ 0; y = Ax + q ≥ 0 and xT y = 0. Such an x is called a solution of LCP(A,q).
Sivakumar K.C.
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Linear Algebra and its Applications, 1991 The main result in this paper is a very technical theorem which characterizes those nonnegative block lower triangular matrices which have a nonnegative group inverse. A consequence (Theorem 2) is that if \(A\) is a real square matrix such that (i) some positive power of \(A\) is a nonnegative matrix, and (ii) the Drazin inverse of \(A\) is nonnegative,
Neumann, M., Werner, H.J.
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Gait Event Prediction Using Surface Electromyography in Parkinsonian Patients
Bioengineering, 2023 Gait disturbances are common manifestations of Parkinson’s disease (PD), with unmet therapeutic needs. Inertial measurement units (IMUs) are capable of monitoring gait, but they lack neurophysiological information that may be crucial for studying gait ...
Stefan Haufe +3 more
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M-matrix and inverse M-matrix extensions
Special Matrices, 2020 A class of matrices that simultaneously generalizes the M-matrices and the inverse M-matrices is brought forward and its properties are reviewed. It is interesting to see how this class bridges the properties of the matrices it generalizes and provides a
McDonald J.J. +6 more
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The group inverse of circulant matrices depending on four parameters
Special Matrices, 2021 Explicit expressions for the coefficients of the group inverse of a circulant matrix depending on four complex parameters are analytically derived. The computation of the entries of the group inverse are now reduced to the evaluation of a polynomial ...
Carmona A. +3 more
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