Results 11 to 20 of about 1,325,975 (331)

Boundary-value problem with free boundary: zirconium alloy hydrogenation

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2016
One of the most important requirements for the reactor’s active zone materials (made of zirconium alloys) is low hydrogen absorptivity since hydrogen embrittlement may cause zirconium cladding damage.
Yury Zaika, Natalia Rodchenkova
doaj   +1 more source

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

On the Optimal Control of the Free Boundary Problems for the Second Order Parabolic Equations. I.Well-posedness and Convergence of the Method of Lines [PDF]

open access: yes, 2012
We develop a new variational formulation of the inverse Stefan problem, where information on the heat flux on the fixed boundary is missing and must be found along with the temperature and free boundary.
Mezzan, Youness, Tber, Moulay Hicham
core   +4 more sources

On a price formation free boundary model by Lasry & Lions: The Neumann problem [PDF]

open access: yes, 2011
We discuss local and global existence and uniqueness for the price formation free boundary model with homogeneous Neumann boundary conditions introduced by Lasry & Lions in 2007.
Caffarelli, Luis A.   +2 more
core   +3 more sources

On a free boundary problem and minimal surfaces [PDF]

open access: yes, 2017
From minimal surfaces such as Simons' cone and catenoids, using refined Lyapunov-Schmidt reduction method, we construct new solutions for a free boundary problem whose free boundary has two components.
Liu, Yong, Wang, Kelei, Wei, Juncheng
core   +2 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

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

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   +5 more sources

Multidimensional transonic shock waves and free boundary problems

open access: yesBulletin of Mathematical Sciences, 2022
We are concerned with free boundary problems arising from the analysis of multidimensional transonic shock waves for the Euler equations in compressible fluid dynamics.
Gui-Qiang G. Chen, Mikhail Feldman
doaj   +1 more source

Regularity of the free boundary in the one-phase Stefan problem: a recent approach

open access: yesBruno Pini Mathematical Analysis Seminar, 2022
In this note, we discuss about the regularity of the free boundary for the solutions of the one-phase Stefan problem. We start by recalling the classical results achieved by I. Athanasopoulos, L. Caffarelli, and S.
Nicolò Forcillo
doaj   +1 more source

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