Results 31 to 40 of about 3,685,749 (356)

U-NO: U-shaped Neural Operators [PDF]

open access: yesTrans. Mach. Learn. Res., 2022
Neural operators generalize classical neural networks to maps between infinite-dimensional spaces, e.g., function spaces. Prior works on neural operators proposed a series of novel methods to learn such maps and demonstrated unprecedented success in ...
Md Ashiqur Rahman   +2 more
semanticscholar   +1 more source

Computation of Pseudo-Differential Operators [PDF]

open access: yesSIAM Journal on Scientific Computing, 1996
Summary: A simple algorithm is described for computing general pseudo-differential operator actions. Our approach is based on the asymptotic expansion of the symbol together with the fast Fourier transform. The idea is motivated by the characterization of the pseudo-differential operator algebra.
Gang Bao, William W. Symes
openaire   +2 more sources

WELL-POSEDNESS OF THE CAUCHY PROBLEM FOR p-EVOLUTION SYSTEMS OF PSEUDO-DIFFERENTIAL OPERATORS [PDF]

open access: yes, 2013
We study p-evolution pseudo-differential systems of the first order with coefficients in (t,x) and real characteristics. We find sufficient conditions for the well-posedness of the Cauchy problem in H∞.
Ascanelli, Alessia, Boiti, Chiara
core   +1 more source

Hankel operators that commute with second order differential operators. [PDF]

open access: yes, 2007
Suppose that $\Gamma$ is a continuous and self-adjoint Hankel operator on $L^2(0, \infty )$ with kernel $\phi (x+y)$ and that $Lf=-(d/dx)(a(x)df/dx)+b(x)f(x) with $a(0)=0$.
Gordon Blower, Blower, Gordon
core   +1 more source

ON DIFFERENTIAL IDEALS OF DIFFERENTIAL RINGS [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
In this paper we introduce two operators denoted by and of a differential ring constructed from a subset of a differential ring. We shall also discuss the relationship between these operators and the differential ideals in differential rings, and Keigher
Yaseen A.W. Alhiti
doaj   +1 more source

Differential operators on the free algebras [PDF]

open access: yesSelecta Mathematica, 2011
25 ...
Iyer, Uma N., McCune, Timothy C.
openaire   +3 more sources

The obstacle problem for nonlinear integro-differential operators [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2016
We investigate the obstacle problem for a class of nonlinear equations driven by nonlocal, possibly degenerate, integro-differential operators, whose model is the fractional p-Laplacian operator with measurable coefficients.
Janne Korvenpää   +2 more
semanticscholar   +1 more source

Discrete Differential Operators for Computer Graphics [PDF]

open access: yes, 2004
This thesis presents a family of discrete differential operators. Since these operators are derived taking into account the continuous notions of differential geometry, they possess many similar properties.
Meyer, Mark
core   +1 more source

Some Families of Differential Equations Associated with Multivariate Hermite Polynomials

open access: yesFractal and Fractional, 2023
In this article, the recurrence relations and shift operators for multivariate Hermite polynomials are derived using the factorization approach. Families of differential equations, including differential, integro–differential, and partial differential ...
Badr Saad T. Alkahtani   +2 more
doaj   +1 more source

Splines and fractional differential operators [PDF]

open access: yesInternational Journal of Wavelets, Multiresolution and Information Processing, 2020
Several classes of classical cardinal B-splines can be obtained as solutions of operator equations of the form [Formula: see text] where [Formula: see text] is a linear differential operator of integral order. In this paper, we consider classes of generalized B-splines consisting of cardinal polynomial B-splines of complex and hypercomplex orders and ...
openaire   +2 more sources

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