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A domain decomposition technique for pseudospectra computations

Author
Astudillo, R.; Castillo, Z.; Otero, B.
Type of activity
Presentation of work at congresses
Name of edition
IX Congreso Colombiano de Métodos Numéricos. Simulación en ciencias y aplicaciones industriales
Date of publication
2013
Presentation's date
2013-08-21
Book of congress proceedings
Métodos numéricos y sus aplicaciones en diferentes áreas: IX Congreso Colombiano de Métodos Numéricos: simulación en ciencias y aplicaciones industriales, IX CCMN 2013, Agosto, 21-23, 2013, UAO Cali, Colombia
First page
102
Last page
109
Repository
http://hdl.handle.net/2117/26926 Open in new window
URL
http://ingenieria.uao.edu.co/ccmn2013/MemoriasCCMN2013/METODOS_NUMERICOS_Y_SUS_DIFERENTES%20_APLICACIONES-27Agosto.pdf Open in new window
Abstract
The pseudospectra, a tool to study the behavior of systems associated with nonnormal matrices has been considered extremely useful in the last decades, for that reason there is a recent interest in its efficient computation. In the large scale setting different projection Krylov methods have been used to calculate the pseudospectra, rather than earlier approaches which require the application of SVD decomposition at each point of a grid or inverse Lanczos schemes that still requires previous Sch...
Citation
Astudillo, R.; Castillo, Z.; Otero, B. A domain decomposition technique for pseudospectra computations. A: Congreso Colombiano de Métodos Numéricos. Simulación en ciencias y aplicaciones industriales. "Métodos numéricos y sus aplicaciones en diferentes áreas: IX Congreso Colombiano de Métodos Numéricos: simulación en ciencias y aplicaciones industriales, IX CCMN 2013, Agosto, 21-23, 2013, UAO Cali, Colombia". Cali: 2013, p. 102-109.
Keywords
Fortran MPI, Implicitly restarted arnoldi, Parallel pseudospectra computation, Pseudospectra, Spectra
Group of research
VIRTUOS - Virtualisation and Operating Systems

Participants

  • Astudillo, Reinaldo  (author and speaker )
  • Castillo, Zenaida  (author and speaker )
  • Otero Calviño, Beatriz  (author and speaker )