KdV hierarchy via Abelian coverings and operator identities
KdV hierarchy via Abelian coverings and operator identities
复制标题
通过阿贝尔覆盖和操作员身份的 KdV 层次结构
DOI:
10.1090/btran/30
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
P. Yuditskii
中科院分区:
文献类型:
--
作者:
B. Eichinger;Tom VandenBoom;P. Yuditskii
We establish precise spectral criteria for potential functions
V
V
of reflectionless Schrödinger operators
L
V
=
−
∂
x
2
+
V
L_V = -\partial _x^2 + V
to admit solutions to the Korteweg–de Vries (KdV) hierarchy with
V
V
as an initial value. More generally, our methods extend the classical study of algebro-geometric solutions for the KdV hierarchy to noncompact Riemann surfaces by defining generalized Abelian integrals and analogues of the Baker-Akhiezer function on infinitely connected domains with a uniformly thick boundary satisfying a fractional moment condition.