Results 21 to 30 of about 3,582,598 (362)
Fractal and Fractional, 2023 The present investigation aims to establish the existence and uniqueness of solutions for a system containing sequential fractional differential equations.
Manigandan Murugesan +3 more
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Uniqueness and Non-uniqueness in the Einstein Constraints [PDF]
, 2003 The conformal thin sandwich (CTS) equations are a set of four of the Einstein equations, which generalize the Laplace-Poisson equation of Newton's theory.
Arand, M. +8 more
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Non-uniqueness for the Transport Equation with Sobolev Vector Fields [PDF]
Annals of PDE, 2017 We construct a large class of examples of non-uniqueness for the linear transport equation and the transport-diffusion equation with divergence-free vector fields in Sobolev spaces W1,p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage ...
S. Modena, L. Székelyhidi
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Analysis of HIV/AIDS model with Mittag-Leffler kernel
AIMS Mathematics, 2022 Recently different definitions of fractional derivatives are proposed for the development of real-world systems and mathematical models. In this paper, our main concern is to develop and analyze the effective numerical method for fractional order HIV ...
Muhammad Mannan Akram +6 more
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IEEE Transactions on Information Theory, 2008 In this paper we propose a revisitation of the topic of unique decodability and of some fundamental theorems of lossless coding. It is widely believed that, for any discrete source X, every "uniquely decodable" block code satisfies E[l(X_1 X_2 ... X_n)]>= H(X_1,X_2,...,X_n), where X_1, X_2,...,X_n are the first n symbols of the source, E[l(X_1 X_2 ..
DALAI, Marco, LEONARDI, Riccardo
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Uniqueness of difference polynomials
AIMS Mathematics, 2021 Let $ f(z) $ be a transcendental meromorphic function of finite order and $ c\in\Bbb{C} $ be a nonzero constant. For any $ n\in\Bbb{N}^{+} $, suppose that $ P(z, f) $ is a difference polynomial in $ f(z) $ such as $ P(z, f) = a_{n}f(z+nc)+a_{n-1}f(z+(n-1)
Xiaomei Zhang , Xiang Chen
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Uniqueness of limit cycles for quadratic vector fields [PDF]
, 2019 Producción CientíficaThis article deals with the study of the number of limit cycles surrounding a critical point of a quadratic planar vector field, which, in normal form, can be written as x ′ = a1x − y − a3x 2 + (2a2 + a5)xy+a6y 2 , y ′ = x ...
Bravo, José Luis +3 more
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Nagoya Mathematical Journal, 1969 1. Let D be the open unit disk and r be the unit circle in the complex plane, and denote by Q the extended complex plane or the Rie-mann sphere.
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Advances in Mathematics, 2013 The main result of this paper is a characterization of properly infinite injective von Neumann algebras and of nuclear C*-algebras by using a uniqueness theorem, based on generalizations of Voiculescu's famous Weyl-von Neumann theorem.
Ping Wong Ng +3 more
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Journal d'Analyse Mathématique, 1998 Let \(R\) be a Riemann surface and \(T(R)\) be the Teichmüller space of \(R\), viewed as the Teichmüller equivalence classes of Beltrami coefficients. The following theorems are proved in this paper: A Beltrami coefficient \(\mu\) is uniquely extremal in its Teichmüller class if, and only if, it is uniquely extremal in its infinitesimal Teichmüller ...
Božin, V. +3 more
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