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Upper bounds for the number of zeroes for some Abelian integrals
Abelian integrals Weak 16th Hilbert’s Problem limit cycles
2011/2/25
Consider the vector field x′ = −yG(x, y), y′ = xG(x, y), where the set of critical points {G(x, y) = 0} is formed by K straight lines, not passing through the origin and parallel to one or two o...