Wed | Sep 15 | 18:30 | Rodrigo Salomão | On the classification of fibrations by singular curves on unirational surfaces | |

Wed | Sep 08 | 18:30 | Hossein Movasati | Ibiporanga: A moduli space for differential equations of automorphic forms | |

Wed | Sep 01 | 18:30 | Thiago Fassarella | Moduli spaces of parabolic Higgs bundles | |

Wed | Aug 25 | 18:30 | Arturo Fernández Pérez | Number of Milnor and Tjurina of Foliations | |

Wed | Jun 30 | 18:30 | Letterio Gatto | On the Vertex Operators Representation of Lie Algebras of Matrices | |

Wed | Jun 23 | 18:30 | Marcos Jardim | Logarithmic sheaves for complete intersections | |

Wed | Jun 16 | 18:30 | Gaia Comaschi | Instanton sheaves of low charge on Fano threefolds | |

Wed | Jun 09 | 18:30 | Abramo Hefez, Steven Kleiman, Michelle Morgado, Marcelo Saia, José Seade, Otoniel Nogueira da Silva | An afternoon of algebraic geometry in memory of Roberto Bedregal | |

Wed | Jun 02 | 18:30 | William Montoya | An extension of the Noether-Lefschetz loci in toric varieties | |

Wed | May 26 | 18:30 | Valeriano Lanza | Moduli of flags of sheaves: a quiver description | |

Wed | May 19 | 18:30 | Emilio Franco | Deformation theory for orthogonal and symplectic sheaves | |

Wed | May 12 | 18:30 | Elizaveta Vishnyakova | Donagi-Witten construction and a graded covering of a supermanifold | |

Wed | May 05 | 18:30 | Javier Ribon | Local foliations with closed leaves | |

Wed | Apr 28 | 18:30 | João Paulo Figueiredo | Regular foliations on rationally connected threefolds with nef anticanonical bundle | |

Wed | Apr 21 | 18:30 | Alex Massarenti | Complete symplectic quadrics and Kontsevich moduli spaces of conics in Lagrangian Grassmannians | |

Wed | Apr 14 | 18:30 | Aline Andrade | On rank 3 instanton bundles on projective 3 space | |

Wed | Apr 07 | 18:30 | Cancelled | TBA | |

Wed | Mar 31 | 18:30 | Danny Taboada / Victor Pretti | The moduli space of quasistable spin curves / Rank 0 Asymptotic Bridgeland stability | |

Wed | Mar 24 | 18:30 | Giosuè Muratore | Enumeration of rational contact curves via torus actions | |

Wed | Mar 17 | 18:30 | Frederico Quallbrunn | Unfoldings of Lie algebroids | |

Wed | Mar 10 | 18:30 | Inder Kaur | Questions on the cohomology ring of moduli spaces of stable locally-free sheaves on curves | |

Wed | Mar 03 | 18:30 | Cristian Martinez | Stability under Fourier-Mukai transforms on elliptic surfaces | |

Wed | Feb 24 | 18:30 | Steven Kleiman | Geometry of Gorenstein Artinian Algebra | |

Wed | Dec 02 | 18:30 | Carolina Araujo | Birational geometry of Calabi-Yau pairs and 3-dimensional Cremona transformations | |

Wed | Nov 25 | 18:30 | Oliver Lorscheid | The moduli space of matroids | |

Wed | Nov 18 | 18:30 | Simone Marchesi | Group actions on vector bundles | |

Wed | Nov 11 | 18:30 | Javier Gargiulo | Rational pullbacks of toric foliations | |

Wed | Nov 04 | 18:30 | Israel Vainsencher | Enumerative geometry of legendrian foliations | |

Wed | Oct 28 | 18:30 | Douglas Guimarães | Moduli spaces of quasitrivial rank 2 sheaves | |

Wed | Oct 21 | 18:30 | Ageu Barbosa | On $(h,s)$-tangential weak defectiveness and identifiability of some projective varieties | |

Wed | Oct 14 | 18:30 | Marcos Jardim | Classification of codimension one distributions of degree two on the projective space | |

Wed | Oct 07 | 18:30 | Damiano Testa | Contact in algebraic and tropical geometry | |

Wed | Sep 30 | 18:30 | Sally Andria / César Hilário | An explicit resolution of the Abel map via tropical geometry / Bertini’s theorem in positive characteristic | |

Wed | Sep 23 | 18:30 | Alessia Mandini | Quasi-parabolic Higgs bundles and null hyperpolygon spaces | |

Wed | Sep 16 | 18:30 | Daniele Faenzi | Stability of logarithmic tangents | |

Wed | Sep 09 | 18:30 | Alan Muniz | On moduli spaces of rank two logarithmic connections over an elliptic curve. | |

Wed | Sep 02 | 18:30 | Eduardo Esteves | Degenerations of line bundles along curves | |

Wed | Aug 26 | 18:30 | Nuno Cardoso / Aline Zanardini | Towards a new technique to compute Orlov spectra / Stability of Halphen pencils of index two | |

Wed | Aug 19 | 18:30 | Alex Abreu | A geometric interpretation for characters of Iwahori--Hecke algebras | |

Wed | Aug 12 | 18:30 | Rodrigo Gondim | Waring problems and the Lefschetz properties | |

Wed | Aug 05 | 18:30 | Roberto Villaflor | Constructing algebraic cycles on hypersurfaces, an explicit approach to Hodge conjecture | |

Wed | Jul 29 | 18:30 | Rodrigo Barbosa | String Dualities, Higgs Bundles and $G_2$ Geometry | |

Wed | Jul 22 | 18:30 | Amar Henni | On the fixed locus of framed instanton sheaves on $\mathbb{P}^3$ | |

Wed | Jul 15 | 18:30 | Maral Mostafazadehfard | Divisor class group of Hankel determinantal rings | |

Wed | Jul 08 | 18:30 | Rick Richster | Secant defectiveness of toric varieties | |

Wed | Jul 01 | 18:30 | André Contiero | Curves and Weierstrass points | |

Wed | Jun 24 | 18:30 | Cecília Salgado | Mordell-Weil rank jumps and the Hilbert property | |

Wed | Jun 17 | 18:30 | Genival da Silva Junior | Surfaces with Exceptional monodromy | |

Wed | Jun 10 | 18:30 | Herivelto Borges, Saeed Tafazolian, Luciane Quoos Conte and Cícero Carvalho | In honor of Fernando Torres | |

Wed | Jun 03 | 18:30 | Tiago Fonseca | From transcendental numbers to higher Ramanujan foliations | |

Wed | May 27 | 18:30 | Jorge Vitório Pereira | Miyaoka's algebraicity criterion and variations | |

Wed | May 20 | 18:30 | Charles Almeida | The geography of moduli spaces of torsion free sheaves | |

Wed | May 13 | 18:30 | Ugo Bruzzo | About the McKay correspondence in 3 dimensions | |

Wed | Apr 29 | 18:30 | Giosuè Muratore | A Recursive Formula for Osculating Curves | |

Wed | Apr 22 | 18:30 | Lucas das Dores | Schemes of rational curves on Del Pezzo surfaces | |

Wed | Apr 15 | 18:30 | Gaia Comaschi | GIT stability of linear systems of skew-symmetric forms | |