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arXiv 2102.06498math.FA
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收缩的迹公式及其在$\mathbb{D}$中的表示

Trace formula for contractions and it's representation in $\mathbb{D}$

Arup Chattopadhyay, Kalyan B. Sinha

摘要:

本文的目的是双重的:给出一个简短的证明的存在性,真正的谱移函数和相关的迹公式的一对压缩,其中的差异是迹类和两个严格的压缩,使设置的假设是最小的比较,在所有现有的证明。第二个问题是求压缩函数与其伴随函数的差的迹公式,在这种情况下,该公式中的积分是在单位圆上的,其表达式与Helton-Howe公式惊人地相似。

英文摘要:

The aim of this article is twofold: give a short proof of the existence of real spectral shift function and the associated trace formula for a pair of contractions, the difference of which is trace-class and one of the two a strict contraction, so that the set of assumptions is minimal in comparison to those in all the existing proofs. The second one is to find a trace formula for differences of functions of contraction and its adjoint, in which case, the integral in the formula is over the unit disc and has an expression surprisingly similar to the Helton-Howe formula.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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