A note on the unique solvability of an inverse problem with integral overdetermination.
A Note on the Uniqueness and Structure of Solutions to the Dirichlet Problem for Some Elliptic Systems
In this note, we consider some elliptic systems on a smooth domain of . By using the maximum principle, we can get a more general and complete results of the identical property of positive solution pair, and thus classify the structure of all positive solutions depending on the nonlinarities easily.
A note on the uniqueness of entropy solutions to first order quasilinear equations.
A note on the variational structure of an elliptic system involving critical Sobolev exponent.
A note on two dimensional Bratu problem
A note on very weak -harmonic mappings.
A note on estimates for quasilinear parabolic equations.
A note on wave equation and convolutions.
A note on weighted estimates for the Schrödinger operator.
A note on γ-radonifying and summing operators
In this note, we discuss certain generalizations of γ-radonifying operators and their applications to the regularity for linear stochastic evolution equations on some special Banach spaces. Furthermore, we also consider a more general class of operators, namely the so-called summing operators and discuss the application to the compactness of the heat semi-group between weighted -spaces.
A note to a bifurcation result of H. Kielhöfer for the wave equation
A modification of a classical number-theorem on Diophantine approximations is used for generalizing H. kielhöfer's result on bifurcations of nontrivial periodic solutions to nonlinear wave equations.
A note to Friedrichs' inequality
A note to the Fourier method of solving partial second-order differential equations
A note to the Laplace transformation
A note to the theory of periodic solutions of a parabolic equation
A notion of renormahzed solution of the study of a general conservation law.
A null controllability data assimilation methodology applied to a large scale ocean circulation model
Data assimilation refers to any methodology that uses partial observational data and the dynamics of a system for estimating the model state or its parameters. We consider here a non classical approach to data assimilation based in null controllability introduced in [Puel, C. R. Math. Acad. Sci. Paris 335 (2002) 161–166] and [Puel, SIAM J. Control Optim. 48 (2009) 1089–1111] and we apply it to oceanography. More precisely, we are interested in developing this methodology to recover the unknown final...
A null controllability data assimilation methodology applied to a large scale ocean circulation model*
Data assimilation refers to any methodology that uses partial observational data and the dynamics of a system for estimating the model state or its parameters. We consider here a non classical approach to data assimilation based in null controllability introduced in [Puel, C. R. Math. Acad. Sci. Paris335 (2002) 161–166] and [Puel, SIAM J. Control Optim.48 (2009) 1089–1111] and we apply it to oceanography. More precisely, we are interested in developing this methodology to recover the unknown final...
A Numerical Approach of the sentinel method for distributed parameter systems
In this paper we consider the problem of detecting pollution in some non linear parabolic systems using the sentinel method. For this purpose we develop and analyze a new approach to the discretization which pays careful attention to the stability of the solution. To illustrate convergence properties we give some numerical results that present good properties and show new ways for building discrete sentinels.
A numerical approach to a class of unilateral elliptic problems of non-variational type