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MSCS Seminars Today

Calendar for Monday November 10, 2025

Monday November 10, 2025

Algebraic Geometry Seminar
Local inequalities for cA_k singularities
Erik Paemurru (Bulgarian Academy of Sciences)
view abstract 3:00 PM in 636 SEO

We generalize an intersection-theoretic local inequality of Fulton–Lazarsfeld to weighted blowups. Using this together with the classification of 3-dimensional divisorial contractions, we prove nonrationality of many families of terminal Fano 3-folds. This is a joint work with Igor Krylov and Takuzo Okada.