Título: The behavior of the degree of a rational map by specialization

Palestrante: Aron Simis (UFPE)

Data: 04 de abril (quinta-feira)
Horário: 15h
Local: C119 - Centro Tecnológico - UFRJ

Abstract: This reports on joint work with Y. Cid-Ruiz. The specialization one has in mind is thatof the coefficients of the defining linear system of a generic rational map. The method rests on the classical idea of Kronecker as applied to the context of projective schemes and their specializations. For the theory to work one is led to develop the details of rational maps and their graphs when the ground ring of coefficients is a Noetherian integral domain.