Results 21 to 30 of about 91,389 (267)
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
openaire +2 more sources
Nonlocal Coupled System for (k,φ)-Hilfer Fractional Differential Equations
Fractal and Fractional, 2022 In this paper, we study a coupled system consisting of (k,φ)-Hilfer fractional differential equations of the order (1,2], supplemented with nonlocal coupled multi-point boundary conditions.
Ayub Samadi +2 more
doaj +1 more source
Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2019 In this paper we study existence and uniqueness of solutions for a coupled system consisting of fractional differential equations of Caputo type, subject to Riemann–Liouville fractional integral boundary conditions.
Akbar Zada , Muhammad Yar, Tongxing Li
doaj +1 more source
On the theory of the known inverse problems for the heat transfer equation
Учёные записки Казанского университета: Серия Физико-математические науки, 2019 The inverse problems for finding the initial condition and the right-hand side were studied for the heat transfer equation. A solution of the initial boundary value problem for the inhomogeneous heat transfer equation with sufficient conditions for the ...
K.B. Sabitov, A.R. Zaynullov
doaj +1 more source
Singular Integral Neumann Boundary Conditions for Semilinear Elliptic PDEs
Axioms, 2021 In this article, we discuss semilinear elliptic partial differential equations with singular integral Neumann boundary conditions. Such boundary value problems occur in applications as mathematical models of nonlocal interaction between interior points ...
Praveen Agarwal +2 more
doaj +1 more source
A strongly ill-posed integro-differential parabolic problem with integral boundary conditions
Mathematical Modelling and Analysis, 2013 Via Carleman estimates we prove uniqueness and continuous dependence results for an identification and strongly ill-posed linear integro-differential parabolic problem with the Dirichlet boundary condition, but with no initial condition.
Alfredo Lorenzi
doaj +1 more source
Effect of Voids and Internal State Variables in Elasticity of Porous Bodies with Dipolar Structure
Mathematics, 2021 In this study, we will prove that the presence of the voids and of the internal state variables in an elastic body with dipolar structure have no effect on the result of uniqueness regarding the solution of the initial-boundary value problem from this ...
Marin Marin +3 more
doaj +1 more source
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.
Ciuperca, A. +3 more
openaire +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Central nervous system (CNS) neuroblastoma, FOXR2‐activated, is a recently recognized entity in the WHO CNS5 classification, defined by activation of the FOXR2 transcription factor and unique histopathological features. This review synthesizes available literature and pooled clinical data, providing insight into demographics ...
Sudarshawn Damodharan +1 more
wiley +1 more source
On the notion of uniqueness [PDF]
Proceedings of the sixth conference on European chapter of the Association for Computational Linguistics -, 1993 In the paper it is argued that for some linguistic phenomena, current discourse representation structures are insufficiently finegrained, both from the perspective of serving as representation in NLP and from a truth conditional perspective. One such semantic phenomenon is uniqueness. It is demonstrated that certain elements are forced to have a unique
openaire +2 more sources