Simple ramification point of a holomorphic map
ID: simple-ramification-point-of-a-holomorphic-map
A ramification point is simple when its analytic ramification index is two. Its contribution to total ramification of a holomorphic map is one. In suitable local coordinates, the holomorphic map is ; two nearby preimages merge there. A ramification point with contributes two even though it is just one point.
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