Giancarlo Urzua (Pontificia Universidad Catolica de Chile)
Giancarlo Urzua Visitor (2024.11.8-2024.11.13) from Pontificia Universidad Catolica de Chile Office: -
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Giancarlo Urzua
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Giancarlo Urzua, The Birational Geometry of Markov Numbers
Giancarlo Urzua, The Birational Geometry of Markov Numbers
Speaker Giancarlo Urzua Pontificia Universidad Catolica de Chile The projective plane is rigid. However, it may degenerate to surfaces with quotient singularities. After the work of Bădescu and Manetti, Hacking and Prokhorov 2010 classified these degenerations completely. They are Q-Gorenstein partial smoothings of P(a2, b2, c2), where a, b, c satisfy the Markov …