Results 51 to 60 of about 76,149 (301)
Existence and Uniqueness of a Fixed Point for the Bellman Operator in Deterministic Dynamic Programming [PDF]
We study existence and uniqueness of a fixed point for the Bellman operator in deterministic dynamic programming. We show that removing many of the assumptions of the theorem on the Bellman operator recently shown by Martins-da-Rocha and Vailakis ...
Takashi Kamihigashi
core +2 more sources
A non-linear hyperbolic equation
International Journal of Mathematics and Mathematical Sciences, 1980 In this paper the following Cauchy problem, in a Hilbert space H, is considered: (I+λA)u″+A2u+[α+M(|A12u|2)]Au=fu(0)=u0u′(0 ...
Eliana Henriques de Brito
doaj +1 more source
Generalized functional differential equations: existence and uniqueness of solutions
Electronic Journal of Qualitative Theory of Differential Equations, 2016 We study generalized nonlinear functional differential equations arising in various applications, for instance in the control theory, or if there is a need to incorporate impulsive and/or delay effects into the underlying system.
Arkadi Ponosov, Evgeny Zhukovskiy
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Existence, uniqueness and monotonic behavior of the solution of classical flow distribution problem for hydraulic networks with pressure-dependent closure relations [PDF]
E3S Web of Conferences, 2019 Existence, uniqueness and monotonic behavior of the solution of classical flow distribution problem for hydraulic networks with pressure-dependent closure relations was proved.
Korelstein Leonid
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The existence of uniquely −G colourable graphs
Discrete Mathematics, 1998 Given graphs \(F\) and \(G\) and a nonnegative integer \(k\), a function \(\pi :V(F)\rightarrow \{1,\ldots ,k\}\) is a \(-G\) \(k\)-colouring of \(F\) if no induced copy of \(G\) is monochromatic; \(F\) is \(-G\) \(k\)-chromatic if \(F\) has a \(-G\) \(k\)-colouring but no \(-G\) \((k-1)\)-colouring.
Dimitris Achlioptas +3 more
openaire +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background The Standards for Psychosocial Care for Children with Cancer and Their Families guide the provision of comprehensive psychosocial care. Parallel to research characterizing implementation of the Standards from the perspective of providers, this study examines implementation of the Standards from the perspective of parents of youth ...
Emily M. Pariseau +8 more
wiley +1 more source
Semipositone elliptic equations in unbounded domains in R n $\mathbb{R}^{n}$
Boundary Value ProblemsWe investigate a class of semipositone nonlinear elliptic boundary value problems in unbounded domains D of R n $\mathbb{R}^{n}$ , n ≥ 3 $n\geq 3$ . Under some mild-assumptions, we obtain the existence of a unique positive continuous solution and provide
Imed Bachar
doaj +1 more source
Existence and uniqueness of solutions to singular ODE’s
Archiv der Mathematik, 2010 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gorka, Przemyslaw, Rybka, Piotr
openaire +4 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric intramedullary low‐grade gliomas (PIMLGGs) are rare neoplasms that present unique clinical and management challenges. Although surgery remains the primary tool for tissue diagnosis and decompression, complete gross‐total resection is frequently unfeasible due to the infiltrative nature of these lesions.
Olga M. Sergeenko +5 more
wiley +1 more source
Existence and uniqueness for a Ginzburg-Landau system for superconductivity
Electronic Journal of Differential Equations, 2020 We prove the existence of a unique solution for a time-dependent Ginzburg-Landau model in superconductivity under the Coulomb gauge. Also we prove the uniform-in-$\epsilon$ well-posedness of the solution, where $\epsilon$ is the coefficient of the ...
Jishan Fan, Yong Zhou
doaj +3 more sources