Results 21 to 30 of about 18,006 (243)
Uniform local null control of the Leray-α model [PDF]
, 2014 This paper deals with the distributed and boundary controllability of the so called Leray-α model. This is a regularized variant of the Navier−Stokes system (α is a small positive parameter) that can also be viewed as a model for turbulent flows.
Araujo de Souza, Diego +2 more
core +1 more source
NULL CONTROLLABILITY OF DEGENERATE NONAUTONOMOUS PARABOLIC EQUATIONS [PDF]
Facta Universitatis, Series: Mathematics and Informatics, 2019 In this paper we are interested in the study of the null controllability for the one dimensional degenerate non autonomous parabolic equation$$u_{t}-M(t)(a(x)u_{x})_{x}=h\chi_{\omega},\qquad (x,t)\in Q=(0,1)\times(0,T),$$ where $\omega=(x_{1},x_{2})$ is asmall nonempty open subset in $(0,1)$, $h\in L^{2}(\omega\times(0,T))$, the diffusion coefficients
Benaissa, Abbes +2 more
openaire +1 more source
, 2015 We show Carleman estimates, observability inequalities and null controllability results for parabolic equations with non smooth coefficients degenerating at an interior point.Comment: Accepted in Memoirs of the American Mathematical ...
Fragnelli, Genni, Mugnai, Dimitri
core +1 more source
Local Null Controllability of a 1D Stefan Problem [PDF]
Bulletin of the Brazilian Mathematical Society, New Series, 2018 The purpose of this article is to give a new proof of a null controllability result for a 1D free-boundary problem of the Stefan kind for a heat PDE. We introduce a method based on local inversion that, in contrast with other previous arguments, does not rely on any compactness property and can be generalized to higher dimensions.
E. Fernández-Cara +2 more
openaire +4 more sources
, 2012 In this paper we deal with the local null controllability of the N-dimensional Navier-Stokes system with internal controls having one vanishing component.
E. Fernández-Cara +7 more
core +1 more source
Quantitative Fattorini-Hautus test and minimal null control time for parabolic problems [PDF]
, 2018 This paper investigates the link between the null controllability property for some abstract parabolic problems and an inequality that can be seen as a quantified Fattorini-Hautus test.
Ammar-Khodja, Farid +3 more
core +3 more sources
FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
wiley +1 more source
Queueing systems with many servers: Null controllability in heavy traffic [PDF]
, 2006 A queueing model has $J\ge2$ heterogeneous service stations, each consisting of many independent servers with identical capabilities. Customers of $I\ge2$ classes can be served at these stations at different rates, that depend on both the class and the ...
Atar, Rami +2 more
core +1 more source
FEBS Letters, EarlyView.Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson +7 more
wiley +1 more source
About least-squares type approach to address direct and controllability problems [PDF]
, 2015 - We discuss the approximation of distributed null controls for partial differential equations. The main purpose is to determine an approximation of controls that drives the solution from a prescribed initial state at the initial time to the zero target ...
Münch, Arnaud, Pedregal, Pablo
core +2 more sources