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This article is cited in 19 scientific papers (total in 19 papers)
Dispersionless Hirota Equations of Two-Component BKP Hierarchy
Kanehisa Takasaki Graduate School of Human and Environmental Studies, Kyoto University, Yoshida, Sakyo, Kyoto 606-8501, Japan
Abstract:
The BKP hierarchy has a two-component analogue (the 2-BKP hierarchy). Dispersionless limit of this multi-component hierarchy is considered on the level of the $\tau$-function. The so called dispersionless Hirota equations are obtained from the Hirota equations of the $\tau$-function. These dispersionless Hirota equations turn out to be equivalent to a system of Hamilton–Jacobi equations. Other relevant equations, in particular, dispersionless Lax equations, can be derived from these fundamental equations. For comparison, another approach based on auxiliary linear equations is also presented.
Keywords:
BKP hierarchy; Hirota equation; dispersionless limit.
Received: April 4, 2006; in final form May 2, 2006; Published online May 31, 2006
Citation:
Kanehisa Takasaki, “Dispersionless Hirota Equations of Two-Component BKP Hierarchy”, SIGMA, 2 (2006), 057, 22 pp.
Linking options:
https://www.mathnet.ru/eng/sigma85 https://www.mathnet.ru/eng/sigma/v2/p57
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