Peakons and Cauchy Biorthogonal Polynomials

Abstract

The contents of the paper is now covered in two separate papers arXiv:0904.2188 and arXiv:0904.2602. Please refer to those. Note that you can still access the original version arXiv:0711.4082v1.

REPLACED by two separate papers arXiv:0904.2188 and arXiv:0904.2602 as 0711

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