• A splitting method for the augmented Burgers equation 

  Ignat L.I.; Pozo A. (BIT Numerical Mathematics, 2017-07-01)

  In this paper we consider a splitting method for the augmented Burgers equation and prove that it is of first order. We also analyze the large-time behavior of the approximated solution by obtaining the first term in the ...

• A semi-discrete large-time behavior preserving scheme for the augmented Burgers equation 

  Ignat L.I.; Pozo A. (ESAIM: Mathematical Modelling and Numerical Analysis, 2017-06-01)

  In this paper we analyze the large-time behavior of the augmented Burgers equation. We first study the well-posedness of the Cauchy problem and obtain $L^1-L^p$ decay rates. The asymptotic behavior of the solution is ...

• Traveling waves to models of solid-solid phase transitions driven by configurational forces 

  Zhu P. (GAMM Mitteilungen, 2011-12-31)

  We study the existence of traveling/standing waves to models based on configurational forces. These models describe, respectively, structural phase transitions in solids, e.g., Shape memory alloys, and phase transitions ...

• Flux identification for 1-d scalar conservation laws in the presence of shocks 

  Castro C.; Zuazua E. (Mathematics of Computation, 2011-12-31)

  We consider the problem of flux identification for 1-d scalar conservation laws formulating it as an optimal control problem. We introduce a new optimization strategy to compute numerical approximations of minimizing fluxes. ...

• Interface motion by interface diffusion driven by bulk energy: Justification of a diffusive interface model 

  Alber H.-D.; Zhu P. (Continuum Mechanics and Thermodynamics, 2011-12-31)

  We construct an asymptotic solution of a system consisting of the partial differential equations of linear elasticity theory coupled with a degenerate parabolic equation, and show that when a regularity parameter tends to ...

• A kinetic scheme for transient mixed flows in non uniform closed pipes: A global manner to upwind all the source terms 

  Bourdarias C.; Ersoy M.; Gerbi S. (Journal of Scientific Computing, 2011-12-31)

  We present a numerical kinetic scheme for an unsteady mixed pressurized and free surface model. This model has a source term depending on both the space variable and the unknown U of the system. Using the Finite Volume and ...

• Homogenization of the Neumann problem in perforated domains: An alternative approach 

  Barchiesi M.; Focardi M. (Calculus of Variations and Partial Differential Equations, 2011-12-31)

  The main result of this paper is a compactness theorem for families of functions in the space SBV (Special functions of Bounded Variation) defined on periodically perforated domains. Given an open and bounded set Ω n, and ...

• Dispersive Properties for Discrete Schrödinger Equations 

  Ignat L.I.; Stan D. (Journal of Fourier Analysis and Applications, 2011-12-31)

  In this paper we prove dispersive estimates for the system formed by two coupled discrete Schrödinger equations. We obtain estimates for the resolvent of the discrete operator and prove that it satisfies the limiting ...

• Regularity issues for the null-controllability of the linear 1-d heat equation 

  Micu S.; Zuazua E. (Systems and Control Letters, 2011-12-31)

  The fact that the heat equation is controllable to zero in any bounded domain of the Euclidean space, any time T>0 and from any open subset of the boundary is well known. On the other hand, numerical experiments show ...

• Nematic elastomers: Gamma-limits for large bodies and small particles 

  Cesana P. (SIAM Journal on Mathematical Analysis, 2011-12-31)

  We compute the large-body and the small-particle Gamma-limit of a family of energies for nematic elastomers. We work under the assumption of small deformations (linearized kinematics) and consider both compressible and ...

• The asymptotic behaviour of the heat equation in a twisted Dirichlet-Neumann waveguide 

  Krejčiřík D.; Zuazua E. (Journal of Differential Equations, 2011-12-31)

  We consider the heat equation in a straight strip, subject to a combination of Dirichlet and Neumann boundary conditions. We show that a switch of the respective boundary conditions leads to an improvement of the decay ...

• Solvability via viscosity solutions for a model of phase transitions driven by configurational forces 

  Zhu P. (Journal of Differential Equations, 2011-12-31)

  This article is concerned with an initial-boundary value problem for an elliptic-parabolic coupled system arising in martensitic phase transition theory of elastically deformable solid materials, e.g., steel. This model ...

• Low Mach number limit of viscous polytropic fluid flows 

  Ou Y. (Journal of Differential Equations, 2011-12-31)

  This paper studies the singular limit of the non-isentropic Navier-Stokes equations with zero thermal coefficient in a two-dimensional bounded domain as the Mach number goes to zero. A uniform existence result is obtained ...

• A splitting method for the nonlinear Schrödinger equation 

  Ignat L.I. (Journal of Differential Equations, 2011-12-31)

  We introduce a splitting method for the semilinear Schrödinger equation and prove its convergence for those nonlinearities which can be handled by the classical well-posedness L2(Rd)-theory. More precisely, we prove that ...

• Well-posedness in critical spaces for the system of compressible Navier-Stokes in larger spaces 

  Haspot B. (Journal of Differential Equations, 2011-12-31)

  This paper is dedicated to the study of viscous compressible barotropic fluids in dimension N≥2. We address the question of well-posedness for large data having critical Besov regularity. Our result improves the analysis ...

• Spherically symmetric solutions to a model for phase transitions driven by configurational forces 

  Ou Y.; Zhu P. (Journal of Mathematical Physics, 2011-12-31)

  We prove the global-in-time existence of spherically symmetric solutions to an initial-boundary value problem for a system of partial differential equations, which consists of the equations of linear elasticity and a ...

• Stationary policies for the second moment stability in a class of stochastic systems 

  Vargas A.N.; Do Val J.B.R. (Proceedings of the IEEE Conference on Decision and Control, 2011-12-31)

  This paper presents a study on the uniform second moment stability for a class of stochastic control system. The main result states that the existence of the long-run average cost under a stationary policy is equivalent ...

• Approximation of Hölder continuous homeomorphisms by piecewise affine homeomorphisms 

  Bellido J.C.; Mora-Corral C. (Houston Journal of Mathematics, 2011-12-31)

  This paper is concerned with the problem of approximating a homeomorphism by piecewise affine homeomorphisms. The main result is as follows: every homeomorphism from a planar domain with a polygonal boundary to ℝ2 that is ...

• Quasiconvex envelopes of energies for nematic elastomers in the small strain regime and applications 

  Cesana P.; Desimone A. (Journal of the Mechanics and Physics of Solids, 2011-12-31)

  We provide some explicit formulas for the quasiconvex envelope of energy densities for nematic elastomers in the small strain regime and plane strain conditions. We then demonstrate their use as a powerful tool for the ...

• Full characterization of the fractional Poisson process 

  Politi M.; Kaizoji T.; Scalas E. (EPL, 2011-12-31)

  The fractional Poisson process (FPP) is a counting process with independent and identically distributed inter-event times following the Mittag-Leffler distribution. This process is very useful in several fields of applied ...

View more