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arXiv 1012.0669math-phhep-thmath.FAmath.MPmath.QA
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S型检验函数空间的Moyal乘子代数

Moyal multiplier algebras of the test function spaces of type S

Michael A. Soloviev

摘要:

将S型Gel'fand-Shilov空间看作关于Moyal星积的拓扑代数,定义并研究了它们相应的乘子代数.与Schwartz空间S的充分研究的情况相反,这些乘子被允许具有非多项式增长或无限阶奇点。Moyal乘法从而扩展到某些类的超分布,超函数和解析泛函。本文的主要定理刻画了一个给定的测试函数空间的对偶的那些元素是这个空间的Moyal乘子。在S-型空间的尺度中,最小的非平凡傅立叶不变空间被证明起着特殊的作用,因为它对应的Moyal乘子代数包含了最大的函数代数,定义它们的星积的幂级数是绝对收敛的。此外,它还包含了与锥形区域相关的类似代数,这些代数可以用来在非对易时空的量子场论中建立因果关系条件。

英文摘要:

The Gel'fand-Shilov spaces of type S are considered as topological algebras with respect to the Moyal star product and their corresponding algebras of multipliers are defined and investigated. In contrast to the well-studied case of Schwartz's space S, these multipliers are allowed to have nonpolynomial growth or infinite order singularities. The Moyal multiplication is thereby extended to certain classes of ultradistributions, hyperfunctions, and analytic functionals. The main theorem of the paper characterizes those elements of the dual of a given test function space that are the Moyal multipliers of this space. The smallest nontrivial Fourier-invariant space in the scale of S-type spaces is shown to play a special role, because its corresponding Moyal multiplier algebra contains the largest algebra of functions for which the power series defining their star products are absolutely convergent. Furthermore, it contains analogous algebras associated with cone-shaped regions, which can be used to formulate a causality condition in quantum field theory on noncommutative space-time.

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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