Personal profile
Personal profile
Associate professor in applied mathematics and numerical analysis at the department of applied mathematics at ENSTA, he conducted research for the study and efficient numerical resolution of partial differential equations (PDE) from mathematical physics. Its scientific activity covers high-performance computing, the development of C++ software oriented towards scientific computation and at the same time more analytical mathematical tools related to potential theory, domain decomposition and asymptotic modeling.
Research interests
His research activities focus on modeling and numerical analysis of linear wave propagation phenomena in the context of electromagnetism and acoustics in the frequency domain. His main areas of interest are:
domain decomposition,
finite element methods,
scientific computing,
multiscale problems,
singularities in elliptic problems.
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Collaborations and top research areas from the last five years
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Accelerating non-local exchange in generalized optimized Schwarz methods
Claeys, X. & Delville Atchekzai, R., 1 Jan 2025, In: SMAI Journal of Computational Mathematics. 11, p. 517-532 16 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Integral equation methods for acoustic scattering by fractals
Caetano, A. M., Chandler-Wilde, S. N., Claeys, X., Gibbs, A., Hewett, D. P. & Moiola, A., 30 Jan 2025, In: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 481, 2306, 20230650.Research output: Contribution to journal › Article › peer-review
Open Access -
Continuity estimates for Riesz potentials on polygonal boundaries
Claeys, X., Hassan, M. & Stamm, B., 1 Jun 2024, In: Partial Differential Equations and Applications. 5, 3, 11.Research output: Contribution to journal › Article › peer-review
Open Access -
How Does the Partition of Unity Influence SORAS Preconditioner?
Bonazzoli, M., Claeys, X., Nataf, F. & Tournier, P. H., 1 Jan 2024, Domain Decomposition Methods in Science and Engineering XXVII. Dostal, Z., Kozubek, T., Klawonn, A., Pavarino, L. F., Widlund, O. B., Langer, U. & Sístek, J. (eds.). Springer Science and Business Media Deutschland GmbH, p. 61-68 8 p. (Lecture Notes in Computational Science and Engineering; vol. 149).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Open Access -
MULTIDOMAIN FEM-BEM COUPLING FOR ACOUSTIC SCATTERING
Bonazzoli, M. & Claeys, X., 1 Jan 2024, In: Journal of Integral Equations and Applications. 36, 2, p. 129-167 39 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Substructuring the Hiptmair-Xu preconditioner for positive definite H(curl,Ω) problems
Delville-Atchekzai, R., Claeys, X. & Lecouvez, M., 1 Sept 2024, In: BIT Numerical Mathematics. 64, 3, 31.Research output: Contribution to journal › Article › peer-review
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A DIRECTIONAL EQUISPACED INTERPOLATION-BASED FAST MULTIPOLE METHOD FOR OSCILLATORY KERNELS
Chollet, I., Claeys, X., Fortin, P. & Grigori, L., 1 Jan 2023, In: SIAM Journal on Scientific Computing. 45, 1, p. C20-C48Research output: Contribution to journal › Article › peer-review
Open Access -
Fractured meshes
Averseng, M., Claeys, X. & Hiptmair, R., 1 Aug 2023, In: Finite Elements in Analysis and Design. 220, 103907.Research output: Contribution to journal › Article › peer-review
Open Access -
NONLOCAL OPTIMIZED SCHWARZ METHOD FOR THE HELMHOLTZ EQUATION WITH PHYSICAL BOUNDARIES
Claeys, X., 1 Jan 2023, In: SIAM Journal on Mathematical Analysis. 55, 6, p. 7490-7512 23 p.Research output: Contribution to journal › Article › peer-review
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Nonselfadjoint impedance in Generalized Optimized Schwarz Methods
Claeys, X., 1 Sept 2023, In: IMA Journal of Numerical Analysis. 43, 5, p. 3026-3054 29 p.Research output: Contribution to journal › Article › peer-review
Open Access