Results 1 to 10 of about 15,193 (83)

Mathematical analysis and design of the nonstandard computational method for an epidemic model of computer virus with delay Effect: Application of mathematical biology in computer science

open access: yesResults in Physics, 2021
Mathematical modeling with nonlinear delay differential equations (DDES) impart a significant role in the different disciplines such as epidemiology, computer modeling, immunology, physiology, neural networks, social sciences, bio-medical engineering, and many more.
Ali Raza   +6 more
openaire   +2 more sources

Vopěnkova Alternativní teorie množin v matematickém kánonu 20. století

open access: yesFilosofický časopis, 2022
Vopěnka’s Alternative Set Theory can be viewed both as an evolution and as a revolution: it is based on his previous experience with nonstandard universes, inspired by Skolem’s construction of a nonstandard model of arithmetic, and its inception has been
Haniková, Zuzana
doaj   +1 more source

Divergent mathematical treatments in utility theory [PDF]

open access: yes, 2015
In this paper I study how divergent mathematical treatments affect mathematical modelling, with a special focus on utility theory. In particular I examine recent work on the ranking of information states and the discounting of future utilities, in order ...
A Bogaard van den   +28 more
core   +1 more source

Finite Embeddability of Sets and Ultrafilters [PDF]

open access: yes, 2015
A set A of natural numbers is finitely embeddable in another such set B if every finite subset of A has a rightward translate that is a subset of B. This notion of finite embeddability arose in combinatorial number theory, but in this paper we study it ...
Blass, Andreas, Di Nasso, Mauro
core   +3 more sources

Ultrafunctions and Applications [PDF]

open access: yes, 2014
This paper deals with a new kind of generalized functions, called "ultrafunctions" which have been introduced recently and developed in some previous works.
Baglini, Lorenzo Luperi, Benci, Vieri
core   +2 more sources

Stevin numbers and reality [PDF]

open access: yes, 2012
We explore the potential of Simon Stevin's numbers, obscured by shifting foundational biases and by 19th century developments in the arithmetisation of analysis.Comment: 22 pages, 4 figures.
A. H. Lightstone   +46 more
core   +1 more source

The Dirac delta function in two settings of Reverse Mathematics [PDF]

open access: yes, 2011
The program of Reverse Mathematics (Simpson 2009) has provided us with the insight that most theorems of ordinary mathematics are either equivalent to one of a select few logical principles, or provable in a weak base theory.
Sanders, Sam, Yokoyama, Keita
core   +2 more sources

Fermat, Leibniz, Euler, and the gang: The true history of the concepts of limit and shadow [PDF]

open access: yes, 2014
Fermat, Leibniz, Euler, and Cauchy all used one or another form of approximate equality, or the idea of discarding "negligible" terms, so as to obtain a correct analytic answer.
David Sherry   +10 more
core   +3 more sources

Axiomatics for the external numbers of nonstandard analysis [PDF]

open access: yes, 2017
Neutrices are additive subgroups of a nonstandard model of the real numbers. An external number is the algebraic sum of a nonstandard real number and a neutrix.
Berg, Imme van den, Dinis, Bruno
core   +2 more sources

Cauchy, infinitesimals and ghosts of departed quantifiers [PDF]

open access: yes, 2017
Procedures relying on infinitesimals in Leibniz, Euler and Cauchy have been interpreted in both a Weierstrassian and Robinson's frameworks. The latter provides closer proxies for the procedures of the classical masters.
Bair, Jacques   +12 more
core   +2 more sources

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