Results 51 to 60 of about 62,602 (186)
Robust Preconditioners for Incompressible MHD Models
, 2015 In this paper, we develop two classes of robust preconditioners for the structure-preserving discretization of the incompressible magnetohydrodynamics (MHD) system.
Hu, Kaibo +3 more
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Currents and finite elements as tools for shape space
, 2018 The nonlinear spaces of shapes (unparameterized immersed curves or submanifolds) are of interest for many applications in image analysis, such as the identification of shapes that are similar modulo the action of some group.
Benn, James +4 more
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A note on families of generalized Nörlund matrices as bounded operators on lp; pp. 137–145 [PDF]
Proceedings of the Estonian Academy of Sciences, 2009 We deal with generalized Nörlund matrices A = (N, pn, qn) defined by means of two non-negative sequences (pn) and (qn) with p0, q0, gt; 0. We are interested in simple conditions such that the associated non-negative triangular matrix A = (ank) is a ...
Ulrich Stadtmüller, Anne Tali
doaj +1 more source
The compositional rule of inference with several relations [PDF]
, 1992 The compositional rule of inference with several relations, which is the mainly used inference rule in approximate reasoning, is considered in this paper.
Fullér, Róbert, Werners, Brigitte
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Numerical range for random matrices
, 2014 We analyze the numerical range of high-dimensional random matrices, obtaining limit results and corresponding quantitative estimates in the non-limit case. For a large class of random matrices their numerical range is shown to converge to a disc.
Collins, Benoît +3 more
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Advances in Difference Equations, 2020 In this article, a finite volume element method with the second-order weighted and shifted Grünwald difference (WSGD) formula is proposed and studied for nonlinear time fractional mobile/immobile transport equations on triangular grids. By using the WSGD
Jie Zhao +3 more
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Operator Lipschitz functions on Banach spaces
, 2016 Let $X$, $Y$ be Banach spaces and let $\mathcal{L}(X,Y)$ be the space of bounded linear operators from $X$ to $Y$. We develop the theory of double operator integrals on $\mathcal{L}(X,Y)$ and apply this theory to obtain commutator estimates of the form $\
Rozendaal, Jan +2 more
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Triangular Norms for Gravitational Wave Data Fusion
IEEE Transactions on Fuzzy Systems, 2020 The first direct observation of gravitational waves of cosmic origin was a milestone in fundamental research, paving the way to gravitational wave and multimessenger astronomy. In this paper, we discuss the application of t-norms as a possible natural tool for implementing consistency tests between the data gathered by different noncolocated ...
Elena Mejuto Villa +2 more
openaire +2 more sources
A fast and well-conditioned spectral method [PDF]
, 2012 A novel spectral method is developed for the direct solution of linear ordinary differential equations with variable coefficients. The method leads to matrices which are almost banded, and a numerical solver is presented that takes $O(m^{2}n)$ operations,
Olver, Sheehan, Townsend, Alex
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IEEE Access, 2014 A new regularization technique for graph Laplacians arising from triangular meshes of closed and open structures is presented. The new technique is based on the analysis of graph Laplacian spectrally equivalent operators in terms of Sobolev norms and on ...
Rajendra Mitharwal +1 more
doaj +1 more source