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From Betti numbers to l2-Betti numbers

Instantáneas de la actualidad matemática desde Oberwolfach

From Betti numbers to l2-Betti numbers

We provide a leisurely introduction to l2-Betti numbers, which are topological invariants, by relating them to their much older cousins, Betti numbers. In the end we present an open research problem about l2-Betti numbers.

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Área matemática

Geometría y Topología

Relaciones con otros campos

Reflexiones sobre la matemática

Autor(es)

Holger Kammeyer, Roman Sauer

Licencia

DOI (Identificador de objetos digitales)

10.14760/SNAP-2020-001-EN

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snapshots-2020-001.pdf

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