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Autor:
Stefanov, Simeon T.
The number of diagrams of stationary points free vector fields in the 2-disk $\mathbb{B}^{2}$ is counted in the article. It is shown that the number of such diagrams with $2k$ exceptional points on the boundary $\mathbb{S}^{1}$ equals $3^{k-2}(C_{k}+
Externí odkaz:
http://arxiv.org/abs/1807.03714
