# Wydawnictwa / Banach Center Publications / Wszystkie tomy

## Symplectic Capacities in Manifolds

### Tom 39 / 1997

Banach Center Publications 39 (1997), 77-87 DOI: 10.4064/-39-1-77-87

#### Streszczenie

Symplectic capacities coinciding on convex sets in the standard symplectic vector space are extended to any subsets of symplectic manifolds. It is shown that, using embeddings of non-smooth convex sets and a product formula, calculations of some capacities become very simple. Moreover, it is proved that there exist such capacities which are distinct and that there are star-shaped domains diffeomorphic to the ball but not symplectomorphic to any convex set.

#### Autorzy

• Alfred Künzle

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