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Seminários do IMPA

Álgebra

Título
The Noether-Lefschetz problem and the Hodge conjecture
Expositor
Ugo Bruzzo

SISSA
Data
Quarta-feira, 18 de abril de 2018, 15:30
Local
Sala 228
Resumo

In this talk I will review some recent results about the Noether-Lefschetz problem for surfaces in normal 3-folds, in particular,
about the density of the components of maximal codimension of the Noether-Lefschetz locus. Moreover, I will describe an
application of some results about the Noether-Lefschetz problem to the Hodge conjecture for hypersurfaces in toric varieties.
(Joint work with A. Grassi and partly with A. F. Lopez).