Hurwitz's theorem (holomorphic zeros)

Layer 0 — Mathematicsin the complex-analysis subtree

If holomorphic f_n converge locally uniformly to a non-zero limit f on Ω and f has a zero of order k at z_0, then for n large f_n has exactly k zeros (counted with multiplicity) in any sufficiently small disk around z_0. Corollary:…

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