Results 61 to 70 of about 1,320,220 (331)
Inverse free boundary problems
Applied Mathematics Letters, 1989 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Doví V, Preisig H, PALADINO, OMBRETTA
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A Free Boundary Problem with Facets [PDF]
Archive for Rational Mechanics and Analysis, 2018 38 pages, 2 ...
William M. Feldman, Charles K. Smart
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Arthritis Care &Research, EarlyView.Objective This study aims to develop hip morphology‐based radiographic hip osteoarthritis (RHOA) risk prediction models and investigates the added predictive value of hip morphology measurements and the generalizability to different populations. Methods We combined data from nine prospective cohort studies participating in the Worldwide Collaboration ...
Myrthe A. van den Berg +26 more
wiley +1 more source
THE STEFAN PROBLEM WITH KINETIC FUNCTIONS AT THE FREE BOUNDARY [PDF]
Journal of Sciences, Islamic Republic of Iran, 1999 This paper considers a class of one-dimensional solidification problem in which kinetic undercooling is incorporated into the temperature condition at the interface. A model problem with nonlinear kinetic law is considered.
doaj
On a variational principle for shape optimization and elliptic free boundary problems
Revista de Matemática: Teoría y Aplicaciones, 2009 A variational principle for several free boundary value problems using a relaxation approach is presented. The relaxed Energy functional is concave and it is defined on a convex set, so that the minimizing points are characteristic functions of sets.
Raúl B. González De Paz
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A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems
International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam +2 more
wiley +1 more source
Quantitative homogenization for the obstacle problem and its free boundary [PDF]
, 2021 Gohar Aleksanyan, Tuomo Kuusi
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International Journal of Adaptive Control and Signal Processing, EarlyView.This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
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Self-similar solutions of a multi-phase Stefan problem on the half-line
Современная математика: Фундаментальные направленияIn this paper, we study self-similar solutions of the multiphase Stefan problem for the heat equation on the half-line x 0 with constant initial data and Dirichlet or Neumann boundary conditions. In the case of the Dirichlet boundary condition, we prove
E. Yu. Panov
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Stability of Solutions to a Free Boundary Problem for Tumor Growth
International Journal of Differential Equations, 2014 We study the asymptotic behaviour of quasi-stationary solutions of a free boundary problem which had been discussed by Bueno (2005). Using a simpler method we prove that the quasi-steady solutions of the problem converge uniformly to the unique ...
Shihe Xu
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