Publications

  • Armand Koenig, Pierre Lissy, “Null-controllability of underactuated linear parabolic-transport systems with constant coefficients”, Annales de l'Institut Fourier , 2026, pp. 43
    PDF file of the paperPaper on HALDOI
  • Andreas Hartman, Armand Koenig, “Control of the half-heat equation”, preprint, 2025
    PDF file of the paperPaper on HAL
  • Paul Alphonse, Armand Koenig, “Null-controllability for weakly dissipative heat-like equations”, Evolution Equations and Control Theory 13(3), 2024, pp. 973–988
    PDF file of the paperPaper on HALDOI
  • Jean-Michel Coron, Armand Koenig, Hoai-Minh Nguyen, “On the small-time local controllability of a KdV system for critical lengths”, Journal of the European Mathematical Society 26(4), 2024, pp. 1193–1253
    PDF file of the paperPaper on HALDOI
  • Jean-Michel Coron, Hoai-Minh Nguyen, Armand Koenig, “Lack of local controllability for a water-tank system when the time is not large enough”, Annales de l'Institut Henri Poincaré (C), Analyse non linéaire (Nonlinear Analysis) 41(6), 2024, pp. 1327–1365
    PDF file of the paperPaper on HALDOI
  • Jérémi Dardé, Armand Koenig, Julien Royer, “Null-controllability properties of the generalized two-dimensional Baouendi-Grushin equation with non-rectangular control sets”, Annales Henri Lebesgue 6, 2023, pp. 1479-1522
    PDF file of the paperPaper on HALDOI
  • Armand Koenig, “Non-null-controllability of the fractional heat equation and of the Kolmogorov equation”, SIAM Journal on Control and Optimization 58(6), 2020, pp. 3130-3160
    PDF file of the paperPaper on HALDOI
  • Karine Beauchard, Armand Koenig, Kévin Le Balc’h, “Null-controllability of linear parabolic-transport systems”, Journal de l'École polytechnique — Mathématiques 7, 2020, pp. 743-802
    PDF file of the paperPaper on HALDOI
  • Michel Duprez, Armand Koenig, “Control of the Grushin equation: non-rectangular control region and minimal time”, ESAIM: Control, Optimisation and Calculus of Variations 26, 2020, pp. 3
    PDF file of the paperPaper on HALDOI
  • Armand Koenig, “Contrôlabilité de quelques équations aux dérivées partielles paraboliques peu diffusives”, Ph. D. thesis, 2019
    Beamer of the talkPDF file of the paperPaper on HALDOI
  • Armand Koenig, “Non-null-controllability of the Grushin operator in 2D”, Comptes Rendus. Mathématique 355(12), 2017, pp. 1215 - 1235
    PDF file of the paperPaper on HALDOI

Talks

  • 2 June 2025, “Control of the half-heat equations”, Congrès de la SMAI, Carcans
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  • 26 September 2024, “Control of the half-heat equations”, Inverse problems on manifold and controls, Hamamet
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  • 1 August 2023, “Geometric control conditions for the fractional heat equation”, IWOTA, Helsinki
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  • 20 June 2023, “Null-controllability of parabolic-transport systems”, Contrôle, stabilisation et EDP, Rennes
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  • 18 January 2023, “Local Controllability of some PDEs”, Conférence itinérante du GDR EDP, Nantes
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  • 10 November 2022, “Quadratic Obstruction for the Local Controllability of a Water-Tank System and the KdV Equation”, Séminaire d'Analyse, Bordeaux
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  • 17 October 2022, “An inequality on operators on polynomials”, Workshop on Control Problems, Online
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  • 31 May 2022, “Quadratic Obstruction for the Local Controllability of a Water-Tank System and the KdV Equation”, Workshop TRECOS 2022, Aix-Marseille Université
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  • 9 November 2021, “Contrôlabilité locale pour un système modélisant un bac d'eau”, Séminaire Modélisation, Analyse et Calcul, Institut de Mathématiques de Toulouse
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  • 8 April 2021, “Null-controllability of parabolic-transport systems”, Control in time of Crisis
    Beamer of the talkRecording of the talk
  • 23 March 2021, “Contrôlabilité à zéro des systèmes paraboliques-hyperboliques”, Journées Jeunes EDPistes 2021
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  • 10 November 2020, “Contrôlabilité de quelques équations aux dérivées partielles peu dissipatives”, Séminaire Commun Analyse et EDP, Institut Mathématiques de Bordeaux
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  • 30 October 2020, “Control of the fractional heat equation and related equations”, Spectral Theory and Geometry, Domaine de Chalès, France
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  • 19 May 2020, “Contrôlabilité de quelques équations aux dérivées partielles paraboliques peu diffusives”, Séminaire Analyse-Proba, CEREMADE, Université Paris-Dauphine
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  • 9 January 2020, “Control of parabolic PDEs”, PhD student's seminar, CEREMADE, Université Paris-Dauphine
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  • 19 August 2019, “Null-controllability of parabolic-hyperbolic systems”, VIII Partial Differential Equations, Optimal Design and Numerics, Benasque
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  • 8 July 2019, “Control of a degenerate parabolic equation: minimal time and geometric dependance”, Equadiff 2019, Leiden
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  • 20 June 2019, “(Non) Null-controllability of some Parabolic equations”, Dispersive Waves and Related Topics, Conference in Honor of Gilles Lebeau, Bergen
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  • 20 September 2018, “(Non) Null Controllability of the Fractional Heat Equation and of Related Equations”, GE2MI conference on PDE’s, Control Theory and Related Topics, Foz do Arelho, Portugal
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  • 28 August 2018, “Parabolic hyperbolic systems: lack of null-controllability in small time”, XIVe Colloque Franco-Roumain de mathématiques appliquées, Bordeaux, France
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  • 5 June 2018, “Contrôlabilité de quelques EDPs paraboliques”, Séminaire Analyse Appliquée, I2M, Marseille, France
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  • 1 June 2018, “Non-contrôlabilité de quelques équations paraboliques peu diffusives”, CANUM 2018, Cap d'Agde, France
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  • 9 May 2018, “Estimations de la première fonction propre de l’oscillateur harmonique”, Colloque des doctorants du Ljad, Peyresq, France
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  • 5 October 2017, “Non Null-Controllability of the Grushin Equation in Dimension 2”, Workshop GL2017 on microlocal analysis, resonnnances and control theory in PDEs, S. Margherita di Pula, Italie
  • 24 August 2017, “Non null-controllability of the Grushin equation in dimension 2”, VII Partial Differential Equations, Optimal Design and Numerics, Benasque, Espagne
  • 14 June 2017, “Contrôlabilité des équations aux dérivées partielles paraboliques dégénérées, exemple de l’équation de Grushin”, Groupe de travail "applications des mathématiques", ENS Rennes, France
  • 13 February 2017, “Non Null Controllability of the Grushin Equation in 2D”, Recife Workshop on Control and Stabilization of PDEs, Recife, Brésil
  • 10 April 2017, “Contrôlabilité des EDPs paraboliques”, Séminaire des doctorants du LJAD, Nice, France

Academic background

  • 2023–current, Associate professor, Université de Bordeaux, Bordeaux
  • 2021–2023, Postdoc CIMI. Supervisor: Jérémi Dardé, Université Toulouse III - Paul Sabatier, Toulouse
  • 2019–2021, Postdoc FSMP. Supervisor: Pierre Lissy, Université Paris-Dauphine, Paris
  • 2016–2019, Ph. D. student. Advisor: G. Lebeau, Université Côte d'Azur, Nice
  • 2012–2016, Student in École normale supérieure (admitted on the competitive exam MPI), Paris
  • 2014–2015, Master 2 MPA, Université de Nice-Sofia Antipolis, Nice
  • 2009–2012, CPGE MPSI&MP*, Lycée Clemenceau, Nantes
  • 2009, Baccalauréat S option SI, Angers

Administrative duties

  • 2018, Co-organisation of the workshop “Young Researchers in Control Theory”, 9-13 July 2018, Les-Salles-sur-Verdon
  • 2021, Participated in Ceremade's working group “Environmental responsibility”
  • 2022–2023, Participated in IMT's “Cellule Éco responsable”
  • 2023–current, Member of the environment working group at IMB
  • 2022, Climate Fresk Facilitator