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Iterative refinement for defective subspaces of differential operators

 

作者: Mario Ahues,   Gloria Carreno,   Mauricio Telias,  

 

期刊: Numerical Functional Analysis and Optimization  （Taylor Available online 1989）
卷期: Volume 10, issue 3-4  

页码: 199-210

 

ISSN:0163-0563

 

年代: 1989

 

DOI:10.1080/01630568908816301

 

出版商: Marcel Dekker, Inc.

 

数据来源: Taylor

 

摘要:

We present and test an iterative process, based on a two-grid Newton method,to refine an approximate basis of a maximal invariant subspace associated with a defective eigenvalue of a closed, densely defined, anticompact operator in a Hilbert space. Computations are done with finite element approximations of differential operators.

 

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