Julie Valein

Publications

Article dans une revue (25)

Carleman-Based Reconstruction Algorithm on a wave Network Lucie Baudouin,Maya de Buhan,Emmanuelle Crépeau,Julie Valein Mathematics of Control, Signals, and Systems, 2025, 37, pp.621-660. ⟨10.1007/s00498-025-00413-z⟩ Article dans une revue hal-04361363v1
Determination of discontinuous diffusion coefficients for the heat equation on a tree-shaped network Emmanuelle Crépeau,Lionel Rosier,Julie Valein Inverse Problems, 2025, 41 (7), pp.075001. ⟨10.1088/1361-6420/ade3f9⟩ Article dans une revue hal-05464931v1
Observer-based feedback-control for the stabilization of a class of parabolic systems Imene Aicha Djebour,Karim Ramdani,Julie Valein Journal of Optimization Theory and Applications, 2024, 202 (3), pp.1217-1241. ⟨10.1007/s10957-024-02496-1⟩ Article dans une revue hal-04155214v2
Stability results for the KdV equation with time-varying delay Hugo Parada,Chahnaz Timimoun,Julie Valein Systems and Control Letters, 2023, 177, pp.105547. ⟨10.1016/j.sysconle.2023.105547⟩ Article dans une revue hal-03819356v2
On the asymptotic stability of the Korteweg-de Vries equation with time-delayed internal feedback Julie Valein Mathematical Control and Related Fields, In press, ⟨10.3934/mcrf.2021039⟩ Article dans une revue hal-02020757v2
Feedback stabilization of parabolic systems with input delay Imene A Djebour,Takéo Takahashi,Julie Valein Mathematical Control and Related Fields, 2022, 12 (2), pp.405-420. ⟨10.3934/mcrf.2021027⟩ Article dans une revue hal-02545562v2
Boundary controllability of the Korteweg-de Vries equation on a tree-shaped network Eduardo Cerpa,Emmanuelle Crépeau,Julie Valein Evolution Equations and Control Theory, 2020, 9 (3), pp.673-692. ⟨10.3934/eect.2020028⟩ Article dans une revue hal-02137907v2
Two approaches for the stabilization of nonlinear KdV equation with boundary time-delay feedback Lucie Baudouin,Emmanuelle Crépeau,Julie Valein IEEE Transactions on Automatic Control, 2019, 64 (4), pp.1403-1414. ⟨10.1109/TAC.2018.2849564⟩ Article dans une revue hal-01643321v1
Finite dimensional approximations for a class of infinite dimensional time optimal control problems Marius Tucsnak,Julie Valein,Chi-Ting Wu International Journal of Control, 2019, 92 (1), pp.132-144. ⟨10.1080/00207179.2016.1228122⟩ Article dans une revue hal-01393258v1
Adaptive observer for age-structured population with spatial diffusion Karim Ramdani,Julie Valein,Jean-Claude Vivalda North-Western European Journal of Mathematics, 2018, 4, pp.39-58 Article dans une revue hal-01469488v1
Detectability and state estimation for linear age-structured population diffusion models Karim Ramdani,Marius Tucsnak,Julie Valein ESAIM: Mathematical Modelling and Numerical Analysis, 2016, 50 (6), pp.1731-1761. ⟨10.1051/m2an/2016002⟩ Article dans une revue hal-01140166v4
Nonlinear control of a coupled PDE/ODE system modeling a switched power converter with a transmission line Jamal Daafouz,Marius Tucsnak,Julie Valein Systems and Control Letters, 2014, 70, pp.92-99. ⟨10.1016/j.sysconle.2014.05.009⟩ Article dans une revue hal-01095237v1
Uniformly exponentially or polynomially stable approximations for second order evolution equations and some applications Farah Abdallah,Serge Nicaise,Julie Valein,Ali Wehbe ESAIM: Control, Optimisation and Calculus of Variations, 2013, 19 (3), pp.844-887. ⟨10.1051/cocv/2012036⟩ Article dans une revue hal-00755744v1
Spectral analysis and stabilization of a chain of serially connected Euler-Bernoulli beams and strings Kais Ammari,Denis Mercier,Virginie Régnier,Julie Valein Communications on Pure and Applied Analysis, 2012, 11 (2), pp.785--807. ⟨10.3934/cpaa.2012.11.785⟩ Article dans une revue hal-00644058v1
Stabilization of non-homogeneous elastic materials with voids Serge Nicaise,Julie Valein Journal of Mathematical Analysis and Applications, 2012, 387 (2), pp.1061-1087. ⟨10.1016/j.jmaa.2011.10.018⟩ Article dans une revue istex hal-00644065v1
Stability results for the approximation of weakly coupled wave equations Farah Abdallah,Serge Nicaise,Julie Valein,Ali Wehbe Comptes Rendus de l'Académie des Sciences - Series I - Mathematics, 2012, 350 (1-2), pp.29-34. ⟨10.1016/j.crma.2011.12.004⟩ Article dans une revue istex hal-00755739v1
Exponential stability of the wave equation with boundary time-varying delay Serge Nicaise,Cristina Pignotti,Julie Valein Discrete and Continuous Dynamical Systems - Series S, 2011, 4 (3), pp.693-722. ⟨10.3934/dcdss.2011.4.693⟩ Article dans une revue hal-00599629v1
Global Carleman estimate on a network for the wave equation and application to an inverse problem. Lucie Baudouin,Emmanuelle Crépeau,Julie Valein Mathematical Control and Related Fields, 2011, 1 (3), p.307-330. ⟨10.3934/mcrf.2011.1.307⟩ Article dans une revue hal-00576296v1
A remark on the stabilization of the 1-d wave equation Serge Nicaise,Julie Valein Comptes rendus de l'Académie des sciences. Série I, Mathématique, 2010, 348 (1-2), pp.47-51. ⟨10.1016/j.crma.2009.11.015⟩ Article dans une revue istex hal-00599639v1
Quasi exponential decay of a finite difference space discretization of the 1-d wave equation by pointwise interior stabilization Serge Nicaise,Julie Valein Advances in Computational Mathematics, 2010, 32 (3), pp.303-334. ⟨10.1007/s10444-008-9108-1⟩ Article dans une revue istex hal-00599626v1
On the observability of abstract time-discrete linear parabolic equations Sylvain Ervedoza,Julie Valein Revista Matematica Complutense, 2010, 23 (1), pp.163-190. ⟨10.1007/s13163-009-0014-y⟩ Article dans une revue hal-00599624v1
Stabilization of second order evolution equations with unbounded feedback with delay Serge Nicaise,Julie Valein ESAIM: Control, Optimisation and Calculus of Variations, 2010, 16 (2), pp.420-456. ⟨10.1051/cocv/2009007⟩ Article dans une revue hal-00599632v1
Stabilization of second order evolution equations with unbounded feedback with time-dependent delay Emilia Fridman,Serge Nicaise,Julie Valein SIAM Journal on Control and Optimization, 2010, 48 (8), pp.5028-5052. ⟨10.1137/090762105⟩ Article dans une revue hal-00599627v1
STABILITY OF THE HEAT AND OF THE WAVE EQUATIONS WITH BOUNDARY TIME-VARYING DELAYS Serge Nicaise,Julie Valein,Emilia Fridman Discrete and Continuous Dynamical Systems - Series S, 2009, 2 (3), pp.559-581. ⟨10.3934/dcdss.2009.2.559⟩ Article dans une revue hal-03579866v1
Stabilization of the Wave Equation on 1-d Networks Julie Valein,Enrique Zuazua SIAM Journal on Control and Optimization, 2009, 48 (4), pp.2771-2797. ⟨10.1137/080733590⟩ Article dans une revue hal-03550152v1

Communication dans un congrès (2)

Numerical approximation of some time optimal control problems Marius Tucsnak,Julie Valein,Chi-Ting Wu European Control Conference, Jul 2015, Linz, Austria. pp.ThA3.4, ⟨10.1109/ECC.2015.7330724⟩ Communication dans un congrès hal-01246356v1
Wellposedness and stabilization of a class of infinite dimensional bilinear control systems Jamal Daafouz,Marius Tucsnak,Julie Valein 51st IEEE Conference on Decision and Control, CDC 2012, Dec 2012, Maui, Hawaii, United States. pp.CDROM Communication dans un congrès hal-00753108v1

Pré-publication, Document de travail (1)

Stability of discontinuous diffusion coefficients for the heat equation on a star-shaped tree Emmanuelle Crépeau,Lionel Rosier,Julie Valein 2025 Pré-publication, Document de travail hal-04931176v1

Thèse (1)

Stabilité de quelques problèmes d'évolution Julie Valein Mathématiques [math]. Université de Valenciennes et du Hainaut-Cambrésis, 2008. Français. ⟨NNT : 2008VALE0032⟩ Thèse tel-03012114v1

HDR (1)

Contrôle, stabilité et problèmes inverses pour les systèmes à retard et les réseaux : une contribution mathématique et numérique Julie Valein Equations aux dérivées partielles [math.AP]. Université de Lorraine, 2020 HDR tel-03008177v1