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Set-Theoretic Topology

Leonard Rubin

Subevent of Set-Theoretic Topology - Sat. AM

Forbes 2070C

Times: 2025 Mar 08 from 11:10AM to 11:30AM (Eastern Time (US & Canada))

Characterizing Strong Infinite-Dimension, Weak Infinite-Dimension, and Dimension in Inverse Systems

Leonard Rubin ⟨lrubin@ou.edu⟩

Abstract:

We present internal characterizations for an inverse system of compact Hausdorff spaces that show when its limit will be strongly infinite-dimensional, weakly infinite-dimensional, or have its dimension $n\in\mathbb{N}_{\geq0}$. Our main tool involves lifting the notion of an essential family into a parallel concept for inverse systems. In our presentation we plan to review the definitions of essential family, strong and weak infinite-dimensionality, finite dimensionality, and inverse systems. After doing that, we will state our main results but will not go into any proofs. The published paper with all details appears in Rad Hazu. Matematičke Znanosti, v. 29=564 (2025): 299-318.

Notes:

This is joint work with Matthew Lynam, East Central University

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