4 citations · 7 across the 8 of their papers we have counts for
Showing 2017Show all
2 papers · 1 filter
math.CV2017★ 1 cited
Spectra of quadratic vector fields on : The missing relation
Yury Kudryashov, Valente Ramírez
Consider a quadratic vector field on having an invariant line at infinity and isolated singularities only. We define the extended spectra of singularities to be the…
math.CV2017
Cheap Complex Limit Cycles
Nataliya Goncharuk, Yury Kudryashov
Consider a holomorphic foliation with singularities of a 2-dimensional complex manifold. In this article we prove a new sufficient condition for this foliation to have countably ma…