Publications :

1. Positivity results for Weyl's pseudodifferential calculus on the Wiener space
   L. Jager
   J. Pseudo-Differ. Oper. Appl. (2023) 14, No 3, paper No. 34 https://doi.org/10.1007/s11868-023-00526-6
   
2. Stochastic extensions of symbols in Wiener spaces and heat operator
   L. Jager
   Annales mathématiques Blaise Pascal, 28 157-198 (2021)
   
3. Ground state photon number at large distance
   L. Amour, L Jager, J.Nourrigat
   Rep. Math. Phys. 85, n 2, 227-238 (2020) DOI : 10.1016/S0034-4877(20)30026-4
   
4. Composition of states and observables in Fock space
   L. Amour, L Jager, J.Nourrigat
   Reviews. Math. Phys. 32 No 5, article ID 2050012 29 p (2020) DOI: 10.1142/S0129055X20500129
   
5. Pseudodifferential operators in infinite dimensional spaces : a survey of recent results
   L.Jager
   Rev. Roumaine Maths. Pures appl 64 (2019) 2-3, 251-282
   
6. Infinite dimensional semiclassical analysis and applications to a model in Nuclear Magnetic Resonance
   L. Amour, L Jager, J.Nourrigat
   J.Math. Phys. 60 , 071503 (2019)
   DOI information: 10.1063/1.5094396
   
7. Exponential decay of correlations for a real valued dynamical system generated by a k dimensional system
   L.Jager, J.Maes, A.Ninet
   Acta Applicandae Mathematicae 192 (2018)
   DOI information: 10.1007/s10440-018-0192-z
8. Exponential decay of correlations for a real valued dynamical system embedded in IR^2
   L.Jager, J.Maes, A.Ninet
   C.R. Acad. Sci Paris, Ser. I (2015)
   10.1016/j.crma.2015.07.015
9. On bounded pseudodifferential operators in Wiener spaces
   L.Amour, L.Jager, J.Nourrigat
   Journal of Functional Analysis 269 (2015) 2747–2812
   DOI information: 10.1016/j.jfa.2015.08.004 Pdf
   
10. The Weyl symbol of Schrödinger semigroups.
    L.Amour, L.Jager, J.Nourrigat
    Annales Henri Poincaré
    DOI information : 10.1007/s00023-014-0344-2
    
11. Lower bounds for pseudodifferential operators with a radial symbol.
    L.Amour, L.Jager, J.Nourrigat
    J. Math. P. Appl., 103 (2015) 1157-1162
    DOI information : 10.1016/j.matpur.2014.10.008
    
12. On bounded pseudodifferential operators in a high-dimensional setting.
    L.Amour, L.Jager, J.Nourrigat
    Proc. Amer. Math. Soc. 143 (2015), no. 5, 2057–2068.
    DOI information : 10.1090/S0002-9939-2014-12379-3
    
13. Stellar models and irregular singularities.
    L.Jager, S.Kichenassamy
    Commun. Contemp. Math. 5 (2003), no. 5, 719–735.
    
14. Fonctions de Mathieu et fonctions propres de l'oscillateur relativiste. (French) Mathieu functions and eigenfunctions of the relativistic operator.
    L.Jager
    Ann. Fac. Sci. Toulouse Math. (6) 7 (1998), no. 3, 465–495.
    
15. Fonctions de Mathieu et polynômes de Klein-Gordon. (French) Mathieu functions and Klein-Gordon polynomials.
    L.Jager
    C. R. Acad. Sci. Paris Sér. I Math. 325 (1997), no. 7, 713–716.
    

Recent seminary talks :

1. Wick symbols of evolution operators
   29 août 2023, Angers, workshop ``High frequency analysis : from operator algebras to PDEs''
   
2. Quantization on the Wiener space : some positivity results
   24 février 2022, Toulouse, 14ème colloque DYNQUA
   
3. Three pseudodifferential calculi in Fock and Wiener spaces
   18 novembre 2019 Problèmes spectraux en physique mathématique . IHP
   

Workgroups :

1. Gröbner basis and differential operators
   Organised by J. Alev and R. Brummelhuis from october 1999 to february 2000.
2. Fuchsian Reduction
   Organised by S. Kichenassamy in 2000.
3. On Exercises in exact quantization by André Voros
   
4. Cryptography and elliptic curves
   Organised by J.C. Lor from november 2004 to june 2005.
5. Stochastic PDEs
   Organised by F. Hérau from may 2006 to march 2009.
6. Study of dynamical systems
   Organised by L. Jager, J. Maes and A. Ninet from march 2008.
7. Stochastic integrals
   Organised by L. Di Menza from february 2012 to june 2012.