A note on comprehensive backward biorthogonalization

作者:David K Ruch
来源:International Journal of Mathematics and Mathematical Sciences, 2006.
DOI:10.1155/ijmms/2006/87392

摘要

We present a backward biorthogonalization technique for giving an orthogonal projection of a biorthogonal expansion onto a smaller subspace, reducing the dimension of the initial space by dropping d basis functions. We also determine which basis functions should be dropped to minimize the L2 distance between a given function and its projection. This generalizes some results in [3].

  • 出版日期2006

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