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Martina Pfeifer

Benjamin Miller (UCLA): Descriptive set-theoretic dichotomy theorems and limits superior

Monday, 30.11.2009 16:15 im Raum SR 8

Mathematik und Informatik

Abstract: Suppose that $X$ is a Hausdorff space, $\mathcal{I}$ is a $\sigma$-ideal on $X$, and $( A_i )_{i \in \omega}$ is a sequence of analytic subsets of $X$. We investigate the circumstances under which there exists $I \in [\omega]^{\omega}$ with $\bigcap_{i \in I} A_i \notin \mathcal{I}$. We focus on Laczkovich-style characterizations and ideals associated with descriptive set-theoretic dichotomies.



Angelegt am Wednesday, 18.11.2009 17:09 von Martina Pfeifer
Geändert am Wednesday, 18.11.2009 17:09 von Martina Pfeifer
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