Schatten-$p$ Quasi-Norm Regularized Matrix Optimization via Iterative Reweighted Singular Value Minimization [PDF]
In this paper we study general Schatten-$p$ quasi-norm (SPQN) regularized matrix minimization problems. In particular, we first introduce a class of first-order stationary points for them, and show that the first-order stationary points introduced in [11]
Lu, Zhaosong, Zhang, Yong
core
Ultimate approximations in nonmonotonic knowledge representation systems
We study fixpoints of operators on lattices. To this end we introduce the notion of an approximation of an operator. We order approximations by means of a precision ordering. We show that each lattice operator O has a unique most precise or ultimate approximation. We demonstrate that fixpoints of this ultimate approximation provide useful insights into
Denecker, Marc +2 more
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Correction: An SIRS model with nonmonotone incidence and saturated treatment in a changing environment. [PDF]
Pan Q, Huang J, Wang H.
europepmc +1 more source
Nonmonotone invasion landscape by noise-aware control of metastasis activator levels. [PDF]
Wan Y +16 more
europepmc +1 more source
Convergence of Rothe scheme for hemivariational inequalities of parabolic type
This article presents the convergence analysis of a sequence of piecewise constant and piecewise linear functions obtained by the Rothe method to the solution of the first order evolution partial differential inclusion $u'(t)+Au(t)+\iota^*\partial J ...
Kalita, Piotr
core
Accelerated gradient methods for total-variation-based CT image reconstruction [PDF]
Total-variation (TV)-based Computed Tomography (CT) image reconstruction has shown experimentally to be capable of producing accurate reconstructions from sparse-view data.
Hansen, Per Christian +5 more
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Global dynamics of a network-based SIQS epidemic model with nonmonotone incidence rate. [PDF]
Cheng X, Wang Y, Huang G.
europepmc +1 more source
An SIRS model with nonmonotone incidence and saturated treatment in a changing environment. [PDF]
Pan Q, Huang J, Wang H.
europepmc +1 more source
Connections Between Numerical Algorithms for PDEs and Neural Networks. [PDF]
Alt T +4 more
europepmc +1 more source
Instability of nonsymmetric nonmonotone equilibria of the Vlasov-Maxwell system [PDF]
We consider the \documentclass[12pt]{minimal}\begin{document}$1\frac{1}{2}$\end{document}112-dimensional relativistic Vlasov-Maxwell system that describes the time-evolution of a plasma. We find a relatively simple criterion for spectral instability of a wide class of equilibria.
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