Results 31 to 40 of about 5,889,360 (355)
Strictly Positive Definite Kernels on a Product of Spheres II [PDF]
, 2016 We present, among other things, a necessary and sufficient condition for the strict positive definiteness of an isotropic and positive definite kernel on the cartesian product of a circle and a higher dimensional sphere.
Guella, Jean C. +2 more
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Stable positive definite functions [PDF]
Transactions of the American Mathematical Society, 1975 This paper investigates the stability of positive definite functions on locally compact groups under one parameter groups of automorphisms. As an application of this it is shown that the only probability distributions on R n {R^n} which are stable under the full automorphism group GL
K. R. Parthasarathy, K. Schmidt
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Negative volatility spillovers in the unrestricted ECCC-GARCH model [PDF]
, 2009 Copyright @ 2010 Cambridge University Press.This paper considers a formulation of the extended constant or time-varying conditional correlation GARCH model that allows for volatility feedback of either the positive or negative sign.
Conrad, C, Karanasos, M
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Strict positive definiteness on spheres via disk polynomials
International Journal of Mathematics and Mathematical Sciences, 2002 We characterize complex strictly positive definite functions on spheres in two cases, the unit sphere of ℂq, q≥3, and the unit sphere of the complex ℓ2. The results depend upon the Fourier-like expansion of the functions in terms of disk polynomials and,
V. A. Menegatto, A. P. Peron
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Geometric conditions for the positive definiteness of the second variation in one-dimensional problems [PDF]
, 2016 Given a functional for a one-dimensional physical system, a classical problem is to minimize it by finding stationary solutions and then checking the positive definiteness of the second variation.
T. Lessinnes, A. Goriely
semanticscholar +1 more source
On the Positive Definiteness of a Functional [PDF]
Canadian Mathematical Bulletin, 1979 AbstractIn this note, we have shown that the set of conditions given by Gel'fand and Vilenkin for the positive definiteness of a functional L(ϕ) [1, Theorem 7, p. 285] though sufficient is not necessary, thereby providing an answer to an open problem posed by them [1, Theorem 7, p. 285].
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Positive definite indistinguishability operators [PDF]
Fuzzy Sets and Systems, 2020 Peer ...
Recasens Ferrés, Jorge +1 more
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Predicative definite NPIs in Norwegian
Nordlyd: Tromsø University Working Papers on Language & Linguistics, 2011 In Norwegian, a weak quantifier or a scalar adjective with a positive value may combine with a definite noun and thereby form an attenuating NPI. These phrases, which I call predicative definite NPIs, are exceptional as nominal phrases, since they do not
Marit Julien
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Mathematics, 2023 This paper is devoted to the spectral analysis of one class of integral operators, associated with the boundary-value problems for differential equations of fractional order.
Tatiana Matseevich, Temirkhan Aleroev
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On positive definiteness over locally compact quantum groups [PDF]
, 2015 The notion of positive-definite functions over locally compact quantum groups was recently introduced and studied by Daws and Salmi. Based on this work, we generalize various well-known results about positive-definite functions over groups to the quantum
Runde, Volker, Viselter, Ami
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