Mathematical Sciences: Group Actions on Rings

首席研究员将研究不同环境下非交换环上基团的作用。特别地，他将研究环面和其他代数群在多项式恒等代数上的作用。本研究属于环理论的一般范畴。环是一个代数对象，在它上面定义了加法和乘法。虽然加法运算满足交换律，但乘法运算不需要满足交换律。一个乘法不可交换的环的例子是整数上的nxn个矩阵的集合。非交换环的研究由于其对其他数学和物理分支的重要意义而成为代数的重要组成部分。

The principal investigator will study actions of groups on noncommutative rings in various settings. In particular, he will investigate actions of tori and other algebraic groups on polynomial identity algebras. This research is in the general area of ring theory. A ring is an algebraic object having both an addition and a multiplication defined on it. Although the additive operation satisfies the commutative law, the multiplicative operation is not required to do so. An example of a ring for which multiplication is not commutative is the collection of nxn matrices over the integers. The study of noncommutative rings has become an important part of algebra because of its increasing significance to other branches of mathematics and physics.