4-dimensional c-symplectic $S^1$-manifolds with non-empty fixed point set need not be c-Hamiltonian
Tom 45 / 1998
Banach Center Publications 45 (1998), 91-93
DOI: 10.4064/-45-1-91-93
Streszczenie
The aim of this article is to answer a question posed by J. Oprea in his talk at the Workshop "Homotopy and Geometry".
