Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Yvon Lafranche"'
Publikováno v:
Integral Equations and Operator Theory
Integral Equations and Operator Theory, Springer Verlag, 2018, 90 (5, article 60), ⟨10.1007/s00020-018-2486-y⟩
Integral Equations and Operator Theory, 2018, 90 (5, article 60), ⟨10.1007/s00020-018-2486-y⟩
Integral Equations and Operator Theory, Springer Verlag, 2018, 90 (5, article 60), ⟨10.1007/s00020-018-2486-y⟩
Integral Equations and Operator Theory, 2018, 90 (5, article 60), ⟨10.1007/s00020-018-2486-y⟩
We investigate the spectrum of the three-dimensional Dirichlet Laplacian in a prototypal infinite polyhedral layer, that is formed by three perpendicular quarter-plane walls of constant width joining each other. Alternatively, this domain can be view
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::895e2be694e15ed88c41b4a879428e4e
https://hal.archives-ouvertes.fr/hal-01645083
https://hal.archives-ouvertes.fr/hal-01645083
Publikováno v:
Numerical Methods for Partial Differential Equations. 31:439-458
The inf-sup constant for the divergence, or LBB constant, is related to the Cosserat spectrum. It has been known for a long time that on non-smooth domains the Cosserat operator has a non-trivial essential spectrum, which can be used to bound the LBB
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90d001d2a3814f23f02f13a03814c083
https://doi.org/10.1002/num.21916
https://doi.org/10.1002/num.21916
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 190:2111-2134
The singularities that we consider are the characteristic non-smooth solutions of the equations of linear elasticity in piecewise homogeneous media near two-dimensional corners or three-dimensional edges. We describe here a method to compute their si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe732ebf736523762f1124893a6117cd
https://doi.org/10.1016/s0045-7825(00)00226-7
https://doi.org/10.1016/s0045-7825(00)00226-7
Publikováno v:
Journal of Computational Physics
Journal of Computational Physics, Elsevier, 2013, 236, pp.289-316. 〈10.1016/j.jcp.2012.10.059〉
Journal of Computational Physics, 2013, 236, pp.289-316. ⟨10.1016/j.jcp.2012.10.059⟩
Journal of Computational Physics, Elsevier, 2013, 236, pp.289-316. ⟨10.1016/j.jcp.2012.10.059⟩
Journal of Computational Physics, Elsevier, 2013, 236, pp.289-316. 〈10.1016/j.jcp.2012.10.059〉
Journal of Computational Physics, 2013, 236, pp.289-316. ⟨10.1016/j.jcp.2012.10.059⟩
Journal of Computational Physics, Elsevier, 2013, 236, pp.289-316. ⟨10.1016/j.jcp.2012.10.059⟩
International audience; The paper presents a detailed numerical study of an iterative solution to 3-D sound-hard acoustic scattering problems at high frequency considering the Combined Field Integral Equation (CFIE). We propose a combination of an OS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ace2018d1f3e915804a0ac577753330c
https://hal.archives-ouvertes.fr/hal-00749822/file/DDL_COF_Helmholtz3D.pdf
https://hal.archives-ouvertes.fr/hal-00749822/file/DDL_COF_Helmholtz3D.pdf
Publikováno v:
ESAIM: Proceedings
ESAIM: Proceedings, EDP Sciences, 2012, 35, pp.14-45. ⟨10.1051/proc/201235002⟩
ESAIM: Proceedings, EDP Sciences, 2012, 35, pp.14-45. 〈10.1051/proc/201235002〉
ESAIM: Proceedings and Surveys, Vol 35, Pp 14-45 (2012)
ESAIM: Proceedings, 2012, 35, pp.14-45. ⟨10.1051/proc/201235002⟩
ESAIM: Proceedings, EDP Sciences, 2012, 35, pp.14-45. ⟨10.1051/proc/201235002⟩
ESAIM: Proceedings, EDP Sciences, 2012, 35, pp.14-45. 〈10.1051/proc/201235002〉
ESAIM: Proceedings and Surveys, Vol 35, Pp 14-45 (2012)
ESAIM: Proceedings, 2012, 35, pp.14-45. ⟨10.1051/proc/201235002⟩
The simplest modeling of planar quantum waveguides is the Dirichlet eigenproblem for the Laplace operator in unbounded open sets which are uniformly thin in one direction. Here we consider V-shaped guides. Their spectral properties depend essentially
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43ff7f21a6d832b714149306ca56fdf8
https://hal.archives-ouvertes.fr/hal-00652901v2/file/GuideCoin.pdf
https://hal.archives-ouvertes.fr/hal-00652901v2/file/GuideCoin.pdf
Autor:
Alain Le Mehaute, Yvon Lafranche
Publikováno v:
Recent Progress in Multivariate Approximation ISBN: 9783034894982
The present paper is a contribution to data reduction in the multivariate case. In this direction, there are quite a few methods like ours dealing with scattered data points. Besides piecewise polynomial splines, radial basis functions (RBF splines)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00c6a91333da99e823d4a89d8f4455ad
https://doi.org/10.1007/978-3-0348-8272-9_15
https://doi.org/10.1007/978-3-0348-8272-9_15
Autor:
Yvon Lafranche, Alain Le Mehaute
Publikováno v:
SPIE Proceedings.
We present a review of some strategies recently developped for reducing the number of knots for the representation of a piecewise polynomial approximation of a function defined on scattered data, without perturbing the approximation more than a given
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a08ded1846b70c99bca40b68fd86e5c7
https://doi.org/10.1117/12.135142
https://doi.org/10.1117/12.135142
Autor:
A. J. Y. Le Méhauté, Yvon Lafranche
We present a strategy for reducing the number of nodes for the representation of a piecewise polynomial approximation of a function defined on scattered data, without perturbing the approximation more than a given tolerance. The method removes some (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c31638859fedd66c468e815873f2556
https://doi.org/10.1016/b978-0-12-460515-2.50033-0
https://doi.org/10.1016/b978-0-12-460515-2.50033-0