Wiener空间上Weyl伪微分的正性结果
Positivity results for Weyl's pseudodifferential calculus on the Wiener space
摘要:
本文讨论了无限维相空间Wiener空间上的伪微分的正性性质,推广了Weyl的经典量子化。在这个框架中,我们表明,一个积极的符号并不,在一般情况下,给一个积极的运营商。为了测量非正性,我们建立了一个Gårding不等式,它适用于手头的符号类。然而,对于具有径向方面的符号,额外的假设确保了相关联的算子的正性。
英文摘要:
This paper deals with positivity properties for a pseudodifferential calculus, generalizing Weyl's classical quantization, and set on an infinite dimensional phase space, the Wiener space. In this frame, we show that a positive symbol does not, in general, give a positive operator. In order to measure the nonpositivity, we establish a Gårding's inequality, which holds for the symbol classes at hand. Nevertheless, for symbols with radial aspects, additional assumptions ensure the positivity of the associated operator.
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