论文标题

普遍加权数量运算符在离散时间正常martingales的功能上

Generalized weighted number operators on functionals of discrete-time normal martingales

论文作者

Zhang, Jing, Wang, Caishi, Zhang, Lixia, Zhang, Lu

论文摘要

让$ m $成为具有混乱代表属性的离散时间普通玛格尔。然后,从$ M $的Square Antekable功能的空间中,可以构建$ M $的广义功能。在本文中,通过使用一种权重,我们引入了一类连续的线性运算符,这些连续性运算符作用于$ M $的广义功能,我们称之为广义加权号码(GWN)运算符。我们证明,GWN运营商可以用广义的歼灭和创建操作员表示(作用于$ M $的广义功能)。我们还研究了GWN操作员与广义歼灭(或创建)操作员之间的换向关系,并获得了表达这种换向关系的几个公式。

Let $M$ be a discrete-time normal martingale that has the chaotic representation property. Then, from the space of square integrable functionals of $M$, one can construct generalized functionals of $M$. In this paper, by using a type of weights, we introduce a class of continuous linear operators acting on generalized functionals of $M$, which we call generalized weighted number (GWN) operators. We prove that GWN operators can be represented in terms of generalized annihilation and creation operators (acting on generalized functionals of $M$). We also examine commutation relations between a GWN operator and a generalized annihilation (or creation) operator, and obtain several formulas expressing such commutation relations.

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