Regular Dilation and Nica-covariant Representation on Right LCM Semigroups

Abstract

Regular dilation has recently been extended to graph product of $\mathbb{N}$, where having a *-regular dilation is equivalent to having a minimal isometric Nica-covariant dilation. In this paper, we first extend the result to right LCM semigroups, and establish a similar equivalence among *-regular dilation, minimal isometric Nica-covariant dilation, and a Brehmer-type condition. This result can be applied to various semigroups to establish conditions for *-regular dilation.

36 pages; Fixed a mistake in the section of decreasing chain condition

Cited by in corpus (1)

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