Results 31 to 40 of about 26,351 (260)

Examples and counterexamples regarding hyperfinite representations of real distributions

open access: yesExamples and Counterexamples, 2022
We provide some examples and counterexamples regarding hyperfinite representations of real distributions. We examine some hyperfinite representatives of the null distribution and of the Dirac distribution, we discuss hyperfinite representations of an ...
Emanuele Bottazzi
doaj   +1 more source

Solution of Inhomogeneous Differential Equations with Polynomial Coefficients in Terms of the Green’s Function, in Nonstandard Analysis

open access: yesAppliedMath, 2022
Discussions are presented by Morita and Sato on the problem of obtaining the particular solution of an inhomogeneous differential equation with polynomial coefficients in terms of the Green’s function.
Tohru Morita
doaj   +1 more source

An operator equation and relativistic alterations in the time for radioactive decay

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
In this paper, using concepts from the nonstandard physical world, the linear effect line element is derived. Previously, this line element was employed to obtain, with the exception of radioactive decay, all of the experimentally verified special theory
Robert A. Herrmann
doaj   +1 more source

ON SOME NONSTANDARD DEVELOPMENTS OF INTERMEDIATE VALUE PROPERTY [PDF]

open access: yesAssiut University Journal of Multidisciplinary Scientific Research, 2016
In this paper, by using the power of nonstandard analysis tools, we review some of the standard facts on the intermediate value property (IVP) and investigates some new nonstandard developments by extending the classical definition.
doaj   +1 more source

On differential operators an differential equations on torus

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018
In this paper, we consider periodic boundary value problems for a differential equation whose coefficients are trigonometric polynomials. The spaces of generalized functions are constructed, in which the problems considered have solutions, in particular,
Vladimir P Burskii
doaj   +1 more source

Time averaging for functional differential equations

open access: yesJournal of Applied Mathematics, 2003
We present a result on the averaging for functional differential equations on finite time intervals. The result is formulated in both classical mathematics and nonstandard analysis; its proof uses some methods of nonstandard analysis.
Mustapha Lakrib
doaj   +1 more source

Solution of Euler’s Differential Equation in Terms of Distribution Theory and Fractional Calculus

open access: yesMathematics, 2020
For Euler’s differential equation of order n, a theorem is presented to give n solutions, by modifying a theorem given in a recent paper of the present authors in J. Adv. Math. Comput. Sci.
Tohru Morita, Ken-ichi Sato
doaj   +1 more source

Singular perturbations and nonstandard analysis [PDF]

open access: yesTransactions of the American Mathematical Society, 1979
We study by methods of nonstandard analysis second order differential operators with zero order coefficients which are too singular to be defined by standard functions. In particular we study perturbations of the Laplacian in
Albeverio, Sergio   +2 more
openaire   +1 more source

MagmaFlow: A desktop platform for artificial intelligence‐driven expression analysis

open access: yesFEBS Open Bio, EarlyView.
MagmaFlow is a free, no‐code platform for gene expression analysis. It generates interactive volcano plots, links genes to literature, pathways, and diseases, prioritizes candidates using millions of publications, identifies affected biological processes, builds network diagrams, and exports publication‐ready figures and reports for macOS and Windows ...
Carlos E. Buss   +7 more
wiley   +1 more source

Forcing in nonstandard analysis

open access: yesAnnals of Pure and Applied Logic, 1994
The results and methods in this paper could lead to a significant improvement within the discipline of nonstandard analysis. A nonstandard universe is constructed from a superstructure in a Boolean-valued model of set theory. Much of this paper is taken up with such a construction and showing how this construction's properties compare with those of the
openaire   +2 more sources

Home - About - Disclaimer - Privacy