Results 11 to 20 of about 251,787 (265)

Notions of Anonymous Existence in Martin-L\"of Type Theory [PDF]

open access: yesLogical Methods in Computer Science, 2017
As the groupoid model of Hofmann and Streicher proves, identity proofs in intensional Martin-L\"of type theory cannot generally be shown to be unique. Inspired by a theorem by Hedberg, we give some simple characterizations of types that do have unique ...
Nicolai Kraus   +3 more
doaj   +1 more source

Five Theories of the Human Existence [PDF]

open access: yesThe Scientific World JOURNAL, 2003
Soren Ventegodt*, Niels Jorgen Andersen, and Joav Merrick The Quality of Life Research Center, Teglgardstraede 4-8, DK-1452 Copenhagen K, Denmark; Norwegian School of Management, Sandvika, Norway; National Institute of Child Health and Human Development, Office of the Medical Director, Division for Mental Retardation, Ministry of Social Affairs ...
Søren Ventegodt   +2 more
openaire   +3 more sources

Stability Results for a Coupled System of Impulsive Fractional Differential Equations

open access: yesMathematics, 2019
In this paper, we establish sufficient conditions for the existence, uniqueness and Ulam−Hyers stability of the solutions of a coupled system of nonlinear fractional impulsive differential equations. The existence and uniqueness results are carried
Akbar Zada   +4 more
doaj   +1 more source

A comparative Study of Predicating the Essence and the Flimsy from the Viewpoint of Mulla Sadra and Ibn Arabi [PDF]

open access: yesآموزه‌‌های فلسفه اسلامي, 2021
Predicating the Essence and the Flimsy is one of Mulla Sadra's important innovations. The implication of this theory is that imperfect existence in perfect existence is more fully realized, so that the higher order encompasses all the lower perfections ...
Ramin Golmakani   +2 more
doaj   +1 more source

On an Existence Lemma in Valuation Theory [PDF]

open access: yesNagoya Mathematical Journal, 1953
Recently one of the writers used, in proving a theorem on the commutativity of certain division rings, the following lemma :I. Let L be a field and K be its proper subfield. Except either when L is of characteristic p ≠ O and absolutely algebraic or ivhen L is algebraic and purely inseparable over K, there exists a pair of distinct (special exponential)
Nagata, Masayoshi   +2 more
openaire   +3 more sources

The Stability of Parabolic Problems with Nonstandard p(x, t)-Growth

open access: yesMathematics, 2017
In this paper, we study weak solutions to the following nonlinear parabolic partial differential equation ∂ t u − div a ( x , t , ∇ u ) + λ ( | u | p ( x , t ) − 2 u ) = 0 in Ω T , where λ ≥ 0 and ∂ t u denote ...
André H. Erhardt
doaj   +1 more source

Ontological Evaluation of the Theory of Eexplaining Plurality in Mulla Sadra's Unificationist System [PDF]

open access: yesحکمت صدرایی, 2023
Mulla Sadra has based his philosophical system on a number of principles, which will have important implications for each of them; the most important of which is the "Originality of Being", whose belief will lead to the adoption of the well-known theory ...
Roohollah Nadali   +1 more
doaj   +1 more source

Explanation of Stephen Hawking’s fallacy of the Big Bang Theory and denial of the existence of God [PDF]

open access: yesJournal of Philosophical Investigations, 2021
Hawking emphasizes the big bang theory as a practical theory, thus answering the question of how the universe began. It has been emphasized by Stephan Hawking.
Mikaeel Jamalpoor   +1 more
doaj   +1 more source

Investigation of Ulam Stability Results of a Coupled System of Nonlinear Implicit Fractional Differential Equations

open access: yesMathematics, 2019
This manuscript deals with the existence theory, uniqueness, and various kinds of Ulam–Hyers stability of solutions for a class and coupled system of fractional order differential equations involving Caputo derivatives. Applying Schaefer and Banach&
Zeeshan Ali   +3 more
doaj   +1 more source

Fractal–Fractional Analysis of a Water Pollution Model Using Fractional Derivatives

open access: yesFractal and Fractional
Water pollution is a significant threat for human health, particularly in developed countries. This study advances the mathematical understanding of WP transmission dynamics by developing a fractional–fractal derivative framework with non-singular ...
Lamia Loudahi   +5 more
doaj   +1 more source

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