Results 31 to 40 of about 1,924,298 (375)

Some infinite free boundary problems [PDF]

open access: yesTransactions of the American Mathematical Society, 1979
Let Γ \Gamma be the boundary of an unbounded simply connected region D \mathcal {D} , and let C ( Γ ) \mathcal {C}(\Gamma ) denote the family of all simply connected regions Δ ⊂ D \Delta ...
Tepper, David E., Wildenberg, Gerald
openaire   +2 more sources

An Improved Neural Particle Method for Complex Free Surface Flow Simulation Using Physics-Informed Neural Networks

open access: yesMathematics, 2023
The research on free surface flow is of great interest in fluid mechanics, with the primary task being the tracking and description of the motion of free surfaces.
Kaixuan Shao, Yinghan Wu, Suizi Jia
doaj   +1 more source

Some results on free boundary problems of incompressible ideal magnetohydrodynamics equations

open access: yesElectronic Research Archive, 2022
We survey some recent results related to free boundary problems of incompressible ideal magnetohydrodynamics equations, and present the main ideas in the proofs of the ill-posedness in 2D when the Taylor sign condition is violated given [1], and the well-
Chengchun Hao, Tao Luo
doaj   +1 more source

Geometry of the free-sliding Bernoulli beam [PDF]

open access: yes, 2016
If a variational problem comes with no boundary conditions prescribed beforehand, and yet these arise as a consequence of the variation process itself, we speak of a free boundary values variational problem.
Moreno, Giovanni, Stypa, Monika Ewa
core   +3 more sources

A Nonlocal Free Boundary Problem [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2015
Given~$s, \in(0,1)$ and a bounded domain~$ \subset\R^n$, we consider the following minimization problem of $s$-Dirichlet plus $ $-perimeter type $$ [u]_{ H^s(\R^{2n}\setminus( ^c)^2) } + \Per_ \left(\{u>0\}, \right), $$ where~$[ \cdot]_{H^s}$ is the fractional Gagliardo seminorm and $\Per_ $ is the fractional perimeter.
S. Dipierro, O. Savin, E. Valdinoci
openaire   +5 more sources

Free Boundary Formulation for BVPs on a Semi-Infinite Interval and Non-Iterative Transformation Methods [PDF]

open access: yes, 2014
This paper is concerned with two examples on the application of the free boundary formulation to BVPs on a semi-infinite interval. In both cases we are able to provide the exact solution of both the BVP and its free boundary formulation. Therefore, these
Fazio, Riccardo
core   +1 more source

A free boundary focusing problem [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
We consider a one-dimensional free boundary problem arising in combustion theory and establish that all solutions are asymptotically equal to a similarity solution which vanishes in a finite time.
Hilhorst, Danielle, Hulshof, Josephus
openaire   +2 more sources

Two-Phase Anisotropic Free Boundary Problems and Applications to the Bellman Equation in 2D [PDF]

open access: yes, 2016
We prove Lipschitz continuity of solutions to a class of rather general two-phase anisotropic free boundary problems in 2D and we classify global solutions.
Luis Caffarelli   +2 more
semanticscholar   +1 more source

Recent progresses on elliptic two-phase free boundary problems

open access: yesDiscrete and Continuous Dynamical Systems. Series A, 2019
We provide an overview of some recent results about the regularity of the solution and the free boundary for so-called two-phase free boundary problems driven by uniformly elliptic equations.
D. Silva, F. Ferrari, S. Salsa
semanticscholar   +1 more source

Coupled Bulk-Surface Free Boundary Problems Arising from a Mathematical Model of Receptor-Ligand Dynamics [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2015
We consider a coupled bulk-surface system of partial differential equations with nonlinear coupling modelling receptor-ligand dynamics. The model arises as a simplification of a mathematical model for the reaction between cell surface resident receptors ...
C. M. Elliott   +2 more
semanticscholar   +1 more source

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