A posteriori error estimates in finite element acoustic analysis

dc.creator	Alonso, Ana Esther
dc.creator	Dello Russo, Anahí
dc.creator	Vampa, Victoria
dc.date	2000
dc.date	2019-10-16T17:58:12Z
dc.identifier	http://sedici.unlp.edu.ar/handle/10915/83425
dc.identifier	issn:0377-0427
dc.description	We present an a posteriori error estimator for the approximations of the acoustic vibration modes obtained by a finite element method which does not present spurious or circulation modes for non zero frequencies. We prove that the proposed estimator is equivalent to the error in the approximation of the eigenvectors up to higher order terms with constants independent of the eigenvalues. Numerical results for some test examples are presented which show the good behavior of the estimator when it is used as local error indicator for adaptive refinement.
dc.description	Facultad de Ciencias Exactas
dc.format	application/pdf
dc.format	105-119
dc.language	en
dc.rights	http://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rights	Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subject	Matemática
dc.subject	A posteriori error estimate
dc.subject	Adaptive mesh-refinement technique
dc.subject	Eigenvalue problem
dc.subject	Finite element method
dc.title	A posteriori error estimates in finite element acoustic analysis
dc.type	Articulo
dc.type	Articulo