Results 21 to 30 of about 3,651,563 (307)

A New Class of Analytic Normalized Functions Structured by a Fractional Differential Operator

open access: yesJournal of Function Spaces, 2021
Newly, the field of fractional differential operators has engaged with many other fields in science, technology, and engineering studies. The class of fractional differential and integral operators is considered for a real variable. In this work, we have
Najla M. Alarifi, Rabha W. Ibrahim
doaj   +1 more source

Pseudo-Differential Operators Associated with the Jacobi Differential Operator

open access: yesJournal of Mathematical Analysis and Applications, 1998
The authors consider pseudo-differential operators on \((0,+\infty)\), defined in terms of the Fourier-Jacobi transform: \[ (Ff)(\xi)=\widehat f(\xi)=\int^\infty_0\varphi_\xi(x)f(x)dm(x) \] where \(\varphi_\xi(x)\) is the Jacobi function and \(dm(x)\) the associated measure. Precisely, for a suitable class of symbols \(p(x,\xi)\), one sets \[ p(x,D)f(x)
Ben Salem, N., Dachraoui, A.
openaire   +1 more source

Multi-phase fluid flow simulation by using peridynamic differential operator

open access: yes, 2020
The problems of multi-phase fluid flows are often encountered in engineering. In this study, a non-local numerical model of multi-phase fluid flows in the Lagrangian description is developed.
Yan Gao, S. Oterkus
semanticscholar   +1 more source

GNOT: A General Neural Operator Transformer for Operator Learning [PDF]

open access: yesInternational Conference on Machine Learning, 2023
Learning partial differential equations' (PDEs) solution operators is an essential problem in machine learning. However, there are several challenges for learning operators in practical applications like the irregular mesh, multiple input functions, and ...
Zhongkai Hao   +8 more
semanticscholar   +1 more source

Resolvent for Non-Self-Adjoint Differential Operator with Block-Triangular Operator Potential

open access: yesAbstract and Applied Analysis, 2016
A resolvent for a non-self-adjoint differential operator with a block-triangular operator potential, increasing at infinity, is constructed. Sufficient conditions under which the spectrum is real and discrete are obtained.
Aleksandr Mikhailovich Kholkin
doaj   +1 more source

On the “splitting” effect for multipoint differential operators with summable potential

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
We study the differential operator of the fourth order with multipoint boundary conditions. The potential of the differential operator is summable function on a finite segment.
Sergey I Mitrokhin
doaj   +1 more source

A subordination results for a class of analytic functions defined by q-differential operator

open access: yes, 2020
In this paper, we derive several subordination results and integral means result for certain class of analytic functions defined by means of q-differential operator. Some interesting corollaries and consequences of our results are also considered.
B. Frasin, G. Murugusundaramoorthy
semanticscholar   +1 more source

Geometry-Informed Neural Operator for Large-Scale 3D PDEs [PDF]

open access: yesNeural Information Processing Systems, 2023
We propose the geometry-informed neural operator (GINO), a highly efficient approach to learning the solution operator of large-scale partial differential equations with varying geometries.
Zong-Yi Li   +10 more
semanticscholar   +1 more source

Third-order differential subordination and superordination involving a fractional operator

open access: yesOpen Mathematics, 2015
The third-order differential subordination and the corresponding differential superordination problems for a new linear operator convoluted the fractional integral operator with the Carlson-Shaffer operator, are investigated in this study.
Ibrahim Rabha W.   +2 more
doaj   +1 more source

A generalized finite difference method based on the Peridynamic differential operator for the solution of problems in bounded and unbounded domains

open access: yesComputer Methods in Applied Mechanics and Engineering, 2019
In this paper, a generalized finite difference method (GFDM) based on the Peridynamic differential operator (PDDO) is investigated. The weighted moving least square (MLS) procedure involved in the GFDM is replaced by the PDDO.
A. Shojaei   +4 more
semanticscholar   +1 more source

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