Desingularization of a Hyperelliptic Curve Associated with a Doubly Periodic Dirac Potential
Από το τεύχος 46 του περιοδικού Δελτίο της Ελληνικής Μαθηματικής Εταιρίας
Let (q(x),p(x)) be a doubly periodic Dirac potential; denote by L the lattice of its periods. The associated spectral curve is a (possibly singular) hyperelliptic covering of the elliptic curve C|L. We show that by varying L we can obtain a smooth spectral curve of the same genus.
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