Rabah Labbas

Professeur des universités

LMAH (Laboratoire de Mathématiques Appliquées du Havre)

Systèmes dynamiques et problèmes d'évolution

Université du Havre
25 rue Philippe Lebon,
BP 540,
76058 Le Havre cedex.
FRANCE


Bureau B108
Tel : 33 (0)2 32 74 43 18
Fax : 33 (0)2 32 74 43 14
rabah.labbas@univ-lehavre.fr


photo


Publications (10 dernières années)

Revues internationales
  1. R. Labbas & M. Moussaoui (2000). "On the Resolution of the Heat Equation With Discontinuous Coefficients". Semigroup Forum, 60 (2000), 187-201.

  2. R. Labbas & A. El Haial (2001). "On the Ellipticity and Solvability of an Abstract Second Order Differential Equation". Electronic Journal of Differential Equations, 57( 2001), 1-18.

  3. R. Labbas, A. Medeghri & B.-K. Sadallah (2002). "On a Parabolic Equation in a Triangular Domain". Applied Mathematics and Computation, 130 (2002), 511-523.

  4. R. Labbas (2002). "Applications des sommes d'opérateurs dans l'étude du comportement singulier des solutions dans les problèmes elliptiques". Progress in Non linear Differential Equations & Their Applications , 50 (2002), 217-236. Birkhäuser Verlag Basel/Switzerland.

  5. R. Labbas, A. Medeghri & B.-K. Sadallah (2002). "Sur une équation parabolique dans un domaine non cylindrique". C. R. Acad. Sci. Paris, Série I, 355 (2002), 1017-1022.

  6. R. Labbas (2003). "Study of Singular Behaviors of Solutions in Elliptic Problems by The Sum Theory Approach". Minicourse-Workshop : Interplay between Co-semigroups and PDEs: theory and applications, September 22-26, 2003, Bari, 147-173.

  7. R. Labbas, S. Maingot (2004). "Singularities in boundary value problems for an abstract second-order differential equation of elliptic type". Applied Mathematics and Computation, 148 (2004), 645-663.

  8. A. Favini, R. Labbas, H. Tanabe & A. Yagi (2004). "On The Solvability of a Complete Abstract Differential Equation of Elliptic Type". Funkcialaj Ekvacioj, 47, (2004), no. 2, 205-224.

  9. A. Favini, R. Labbas, S. Maingot, H. Tanabe & A. Yagi (2004). "On The Solvability and The Maximal Regularity of Complete Abstract Differential Equations of Elliptic Type". Funkcialaj Ekvacioj, 47 (2004), no. 3, 423-452.

  10. T. Berroug, D. Hua, R. Labbas & B-K Sadallah (2005). "On a Degenerate Parabolic Problem in Hölder Spaces". Applied Mathematics and Computation, vol. 162, Issue 2 (2005), 811-833.

  11. R. Labbas, A. Medeghri & B-K Sadallah (2005). "An Lp-approach for the study of degenerate parabolic equations". Electronic Journal of Differential Equations, Vol 2005, No. 36, 1-20.

  12. A. Favini, R. Labbas, S. Maingot & K. Lemrabet (2005). "Study of The limit of Transmission Problems in a Thin Layer by The Sum Theory of Linear Operators". Rev. Mat. Complut. 18 (2005), no. 1, 143-176.

  13. A. Favini, R. Labbas, S.Maingot, H. Tanabe & A. Yagi (2005). "Etude unifiée de problèmes elliptiques dans le cadre höldérien". C.R. Acad. Sci. Paris, Ser. I 341 (2005), 485-490.

  14. A. Favini, R. Labbas, S. Maingot, H. Tanabe & A. Yagi (2006). "Complete Abstract Differential Equations of Elliptic Type in UMD Spaces". Funkcialaj Ekvacioj, 49 (2006), 193-214.

  15. A. Favini, R. Labbas, S.Maingot, H. Tanabe & A. Yagi (2006). "Study of Elliptic Differential Equation in UMD Spaces". Evolution Equation, Inverse and Direct Problems, 251, Chapman & Hall (2006), 73-89.

  16. T. Berroug, R. Labbas & B-K Sadallah (2006). "Resolution in Hölder Spaces of an Elliptic Problem in an unbounded domain". J. Aust. Math. Soc. 81 (2006), 387-404.

  17. A. Favini, R. Labbas, S. Maingot, H. Tanabe & A. Yagi (2008). "A Simplified Approach in the Study of Elliptic Differential Equations in UMD Spaces and New Applications". Funkcialaj Ekvacioj, 51 (2008), 165-187.

  18. A. Favini, R. Labbas, K. Lemrabet & B-K Sadallah (2008). "Study of Complete Abstract Differential Equations of Elliptic Type with Variable Coefficients (Part I)". Rev. Mat. Complutense, 21 (2008), no 1, 89-133.

  19. A. Favini, R. Labbas, S. Maingot, H. Tanabe & A. Yagi (2008). "Necessary and Sufficient Conditions for Maximal Regularity in The Study of Elliptic Differential Equations in Hölder Spaces". Discrete and Continuous Dynamical Systems (DCDS, Volume 22, number 4, december 2008.

  20. M. Cheggag, A. Favini, R. Labbas, S. Maingot & A. Medeghri (2008). "Sturm-Liouville Problems for an Abstract Differential Equation of elliptic Type in UMD Spaces". Differential and Integral Equations, Volume 21, numbers 9-10 (2008), 981-1000.

  21. O. Belhamiti, R. Labbas, K. Lemrabet & A. Medeghri (2008). "Study of Boundary Value and Transmission Problems in the Hölder Spaces". Applied Mathematics and Computation, 202 (2008), 608-619.

  22. O. Belhamiti, R. Labbas, K. Lemrabet & A. Medeghri (2009). "Transmission Problems in a thin Layer set in the framework of the Hölder Spaces, Resolution and Impedance". J. Math.Anal. Appl. 358 (2009) 457-484.

  23. A. Favini, R. Labbas, K. Lemrabet, S. Maingot & H. Sidibé (2010). "Transmission Problem for an Abstract Fourth-order Differential Equation of Elliptic Type in UMD Spaces". Advances in Differential Equations, Volume 15, Numbers 1-2 (2010), 43-72.

  24. M. Cheggag, A. Favini, R. Labbas, S. Maingot and A. Medeghri (2011). "Complete Abstract Differential Equations of Elliptic Type with general Robin Boundary Conditions in UMD Spaces". Discrete and Continuous Dynamical systems Series S (DCDS-S), volume 4, Number 3, (2011), p. 523-538[doi].

  25. F. Bouziani, A. Favini, R. Labbas and A. Medeghri (2011). "Study of Boundary Value and Transmission Problems Governed by a Class of VariableOperator Verifying The Labbas-Terreni Non Commutativity Assumption", Revista Matematica Complutense, Issue 1 (2011), p. 131-168.[doi].

  26. A. Dore, A. Favini, R. Labbas and K. Lemrabet (2011). "An Abstract Transmission Problem in a Thin Layer, I: Sharp Estimates". Journal of Functional Analysis 261, (2011), 1865-1922.[doi].

  27. M. Cheggag, A. Favini, R. Labbas, S. Maingot and A. Medeghri (2012). "Abstract differential equations of elliptic type with general Robin boundary conditions". Applicable Analysis, Vol. 91, No. 8, pp: 1453-1475.[doi].

  28. F. Boutaous, R. Labbas, B-K Sadallah (2012). "Fractional-power approach for solving complete elliptic abstract differential equations with variable-operator coefficients", Electron. J. Diff. Equ., Vol. 2012 (2012), No. 05, pp. 1-33.

  29. R. Labbas, "Etude unifiée d'une classe de Problèmes de transmission elliptiques (2012)", Actes du Colloque Fédération Normandie-Mathématiques, EDP- Normandie du 25 oct. 2011 au 26 oct. 2011, Université de Rouen.

  30. R. Labbas(2012). "Problèmes de transmission elliptiques". Actes du Colloque Fédération Normandie-Mathématiques, EDP- Normandie du 28 oct. 2010 au 29 oct. 2010, Université de Caen.

  31. M. Cheggag, A. Favini, R. Labbas, S. Maingot and A. Medeghri (2012). "Abstract differential equations of elliptic type with general Robin boundary conditions in Hölder spaces".Applicable Analysis, Volume 91, Issue 8, 2012, (Special Issue: PDE's, Semigroup Theory, Inverse and Control Problems) p.1453-1475.[doi].

  32. A. Favini, R. Labbas, S. Maingot & M. Meisner (2012). "Study of complete abstract elliptic differential equations in non-commutative cases" Applicable Analysis, Volume 91, Issue 8, 2012, (Special Issue: PDE's, Semigroup Theory, Inverse and Control Problems) p. 1495-1510.[doi].

  33. B. Chaouchi, R. Labbas and B.-K. Sadallah (2012). "Laplace Equation on a Domain With a Cuspidal Point in Little Hölder Spaces". Mediter. J. Maths. 2013, Vol. 10, Issue 1, pp. 157-175.[doi].

  34. A. Favini, R. Labbas, S. Maingot, K. Lemrabet, H. Sidibe (2013). "Resolution and Optimal Regularity for a Biharmonic Equation with Impedance Boundary Conditions and Some Generalizations".Discrete and Continuous Dynamical Systems (DCDS), Volume 33, Number 11&12, November & December 2013, p. 4991-5014.[doi].

  35. A. Favini, R. Labbas, S. Maingot and M.Meisner (2013). "Boundary Value Problem for Elliptic Differential Equations in Noncommutative Cases". Discrete and Continuous Dynamical Systems (DCDS), Volume 33, Number 11&12, November & December 2013, p. 4967-4990.[doi].

  36. H. Hammou, R. Labbas, S. Maingot and Ahmed Medeghri (2013). "On Some Elliptic Problems with Nonlocal Boundary Coefficient-operator Conditions in the Framework of Hölderian Spaces". Electronic Journal of Qualitative Theory of Differential Equations (EJQTDE), 2013, No. 36, 1-32.

  37. R. Labbas and K. Lemrabet. "An Impedance Effect of a Thin Adhesive Layer in Some Boundary Value and Transmission Problems Governed by Elliptic Differential Equations". Bulletin of the south Ural State University, Ser. Mathematical Modelling, Programming and Computer Software, vol. 8, N°4, 2015, pp.50-75 [DOI].

  38. K. Limam, R. Labbas, K. Lemrabet, A. Medeghri and M. Meisner (2013). "On Some Transmission Problems Set in a Biological Cell, Analysis and Resolution". Journal of Differential Equations, Volume 259, issue 7, 2015, pp. 2695-2731.

  39. H. Hammou, R. Labbas, S. Maingot and A. Medeghri (2015). "Nonlocal General Boundary Value Problems of Elliptic Type in Lp Cases", A paraître dans Mediterranean Journal of Mathematics.>

  40. A. Favini, M. Cheggag, R. Labbas, S. Maingot and A. Medeghri. "Coefficient-Operator Conditions in General Lp Sobolev Spaces and Applications", Bulletin of the South Ural State University, Ser. Mathematical Modelling, Programming and Computer Software, Vol. 8, N°3, 2015, pp. 56-77.

Congrès, Ecoles, conférences, Worshops
    10
  1. R. Labbas. "On the heat equation with discontinuous coefficients". Eight International Colloquium. Plovdiv (Bulgarie), 18-23 Aout 1997.

  2. R. Labbas. "Régularité optimale de la solution d'une équation différentielle d'ordre deux dans les espaces de Hölder et les petits espaces de Hölder". Premier Colloque en Analyse et Applications, Mostaganem, 18-20 octobre 1999.

  3. R. Labbas. "Sommes d'opérateurs linéaires et applications". Rencontre des Mathématiciens Algériens, RMA 2000. Alger, 21-24 mai 2000.

  4. R. Labbas. "Applications of the sum theory in the study of the singular behavior of solutions in elliptic problems". Convegno in Memoria di Brunello Terreni, Milan (Italie) 27-28 septembre 2000.

  5. R. Labbas. "On The Solvability and The Maximal Regularity for Complete Abstract Differential Equations of elliptic Type". Third Meeting On Inverse and Direct Problems and Applications, Gargnano ( Italy), 31 mars 2003, 04 avril 2003.

  6. R. Labbas. "Applications of the sum theory to the study of the singular behavior of elliptic problems". Deux cours donnés au Workshop intitulé 'International Minicourses Workshop, Interplay between Co-semigroups and PDEs : theory and applications' organisé à Bari (Italie) du 22 au 26 sept 2003 (Invité).

  7. A. Favini, R. Labbas, S. Maingot, H. tanabe and A. Yagi (2004). "Study of Elliptic Differential Equations in UMD Spaces". Proceedings of the Meeting, Evolution Equations : Inverse and direct Problems, Cortona , june 21-25, 2004.

  8. R. Labbas. Conférence et un mini- cours donnés aux Ecoles EDA-EDO organisées à L'Ecole Normale Supérieure d'Alger du 13 mai 2006 au 18 mai 2006. (Invité)

  9. R. Labbas, Keddour Lemrabet et B-K. Sadallah (2006). "On the Steklov-Poincaré operator for an abstract differential equation". Evolution Equations: Direct and Inverse Problems, Meeting in Bologna, 18-20 septembre 2006.

  10. Conférence plénière (sur la thématique des problèmes de transmissions régis par les EDA) donnée aux les deux Ecoles EDA-EDO organisées à L'Université de Mostaganem (Algérie) du 24 au 29 mai 2008. (Invité)