Journal
ANALYSIS AND MATHEMATICAL PHYSICS
Volume 12, Issue 5, Pages -Publisher
SPRINGER BASEL AG
DOI: 10.1007/s13324-022-00715-4
Keywords
Riemann-Hilbert problem; KdV equation; Jacobi theta functions
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Funding
- Austrian Science Fund (FWF) [P31651, W1245]
- Austrian Science Fund (FWF) [P31651] Funding Source: Austrian Science Fund (FWF)
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This paper takes a closer look at the relationship between one-gap solutions of the Korteweg-de Vries equation and the Riemann-Hilbert problem. By reformulating it as a scalar Riemann-Hilbert problem on the torus, the authors deduce the vector-valued and singular matrix-valued solutions using Jacobi theta functions. The results are compared with those in recent literature.
We take a closer look at the Riemann-Hilbert problem associated to one-gap solutions of the Korteweg-de Vries equation. To gain more insight, we reformulate it as a scalar Riemann-Hilbert problem on the torus. This enables us to derive deductively the model vector-valued and singular matrix-valued solutions in terms of Jacobi theta functions. We compare our results with those obtained in recent literature.
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