Webinário Orbita Mathematicae (2026) - The Bourbaki degree of plane curves - Marcos Jardim (Unicamp)

Data: 09/02/2026 Horário: 13:00 Palestrante: Marcos Jardim (Unicamp) Título: The Bourbaki degree of plane curves Resumo: A plane algebraic curve is said to be free if the module of syzygies for the associated Jacobian map is a free module. The study of free curves (especially line arrangements) has been a topic of great interest in algebraic geometry for the past 45 years, with a vast literature. I will present a new invariant, called the Bourbaki degree, that measures how far from being free a plane curve is, and show how this concept can be further generalized in other contexts, as well as open questions concerning the new invariant. Redes Sociais do IMPA: https://linktr.ee/impabr IMPA - Instituto de Matemática Pura e Aplicada © https://www.impa.br | https://impa.br/videos Os direitos sobre todo o material deste canal pertencem ao Instituto de Matemática Pura e Aplicada, sendo vedada a utilização total ou parcial do conteúdo sem autorização prévia e por escrito do referido titular, salvo nas hipóteses previstas na legislação vigente. The rights over all the material in this channel belong to the Instituto de Matemática Pura e Aplicada, and it is forbidden to use all or part of it without prior written authorization from the above mentioned holder, except in the cases prescribed in the current legislation.