Revision as of 21:38, 22 April 2025 by Bot (Created page with "<div class="d-none"><math> \newcommand{\mathds}{\mathbb}</math></div> {{Alert-warning|This article was automatically generated from a tex file and may contain conversion errors. If permitted, you may login and edit this article to improve the conversion. }}Prove that we have the formula <math display="block"> \dim_{L(\Lambda)}L^2(\Gamma)=[\Gamma:\Lambda] </math> for any inclusion of ICC groups <math>\Lambda\subset\Gamma</math>")
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Apr 22'25
Exercise
[math]
\newcommand{\mathds}{\mathbb}[/math]
This article was automatically generated from a tex file and may contain conversion errors. If permitted, you may login and edit this article to improve the conversion.
Prove that we have the formula
[[math]]
\dim_{L(\Lambda)}L^2(\Gamma)=[\Gamma:\Lambda]
[[/math]]
for any inclusion of ICC groups [math]\Lambda\subset\Gamma[/math]