KdV hierarchy via Abelian coverings and operator identities

KdV hierarchy via Abelian coverings and operator identities
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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:
Transactions of the American Mathematical Society, Series B
影响因子:
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通讯作者:
P. Yuditskii
P. Yuditskii
中科院分区:
--
文献类型:
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作者:
B. Eichinger;Tom VandenBoom;P. Yuditskii

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我们建立了势函数的精确谱准则 V V 关于无反射薛定谔算子 L V = − ∂ X 2. + V L_V=-\部分_x^2+V 要接受Korteweg-de Vries(KDV)层次结构的解决方案,请使用 V V 作为初始值。更一般地,通过定义无穷连通区域上一致厚边界满足分数阶矩条件的Baker-Akhiezer函数的广义Abelian积分和类似函数,我们的方法将KdV族代数几何解的经典研究推广到非紧Riemann曲面。
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.