Finite-dimensional tau functions of the universal character hierarchy
Finite-dimensional tau functions of the universal character hierarchy
复制标题
通用字符层次结构的有限维 tau 函数
DOI:
10.1134/s0040577921030053
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发表时间:
2021
影响因子:
1
通讯作者:
Chuanzhong Li
中科院分区:
文献类型:
--
作者:
Chuanzhong Li
Abstract Using the so-called Schubert decomposition, we present a finite-dimensional twisted description of the tau functions of the universal character (UC ) hierarchy using Grassmannians. Moreover, from the standpoint of the relation between the UC and Kadomtsev–Petviashvili hierarchies, we study the expansion of this tau function in terms of the action of Abelian groups on finite-dimensional Grassmannians. We use the Gekhtman–Kasman determinant formula involving exponentials of finite-dimensional matrices, which naturally leads to the structure of two finite Grassmannians. Using the Gekhtman–Kasman-type formula, we consider some concrete examples: rational, soliton, and mixed solutions.
DOI:
--
发表时间:
2005
期刊:
Communication in Mathematical Physics 260
影响因子:
--
作者:
Teruhisa Tsuda;Tetsu Masuda;Teruhisa Tsuda;Teruhisa Tsuda;Teruhisa Tsuda;Teruhisa Tsuda
通讯作者:
Teruhisa Tsuda
DOI:
--
发表时间:
--
期刊:
Advances in mathematics (未定)(印刷中)
影响因子:
--
作者:
Teruhisa Tsuda;Tetsu Masuda;Teruhisa Tsuda;Teruhisa Tsuda;Teruhisa Tsuda;Teruhisa Tsuda;Teruhisa Tsuda et al.;Teruhisa Tsuda;津田 照久;Teruhisa Tsuda;Teruhisa Tsuda;Teruhisa Tsuda
通讯作者:
Teruhisa Tsuda