Results 21 to 30 of about 15,121,811 (367)
Matrix Analysis for Continuous-Time Markov Chains
Special Matrices, 2021 Continuous-time Markov chains have transition matrices that vary continuously in time. Classical theory of nonnegative matrices, M-matrices and matrix exponentials is used in the literature to study their dynamics, probability distributions and other ...
Le Hung V., Tsatsomeros M. J.
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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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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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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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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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Factoring Formal Maps into Reversible or Involutive Factors [PDF]
, 2013 An element $g$ of a group is called reversible if it is conjugate in the group to its inverse. An element is an involution if it is equal to its inverse.
O'Farrell, Anthony G., Zaitsev, Dmitri
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Canadian Medical Association Journal, 2009 Lee and colleagues (Improving the quality of care for infants: a cluster randomized controlled trial, Aug. 10 online) have presented an intriguing evaluation of 2 QI interventions in their NICUs.
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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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