Top Posts Tagged with #mostow rigidity

Any compact space is coarse equivalent to a point. ℝ is coarse equivalent to ℤ. The universal cover of a compact manifold is coarse equivalent to the fundamental group.

John Roe

#John Roe #topology #distance #metric spaces #equivalence #equivalence class #function #mapping #image #rigidity #Mostow rigidity #George Daniel Mostow #universal cover #fundamental group #coarse equivalence #zooming out #zoom

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