• Thibaut Delcroix, Weighted Kähler geometry and semisimple principal fibrations (Lecture II)

    B236-1 IBS, Korea, Republic of
    Algebraic Geometry Seminar

        Speaker Thibaut Delcroix Université de Montpellier In Kähler geometry, especially in the questions of existence of canonical Kähler metrics, the volume form ωn associated with a Kähler form ω plays a central role. In weighted Kähler geometry, we consider a Kähler manifold X equipped with a Hamiltonian action of a torus T, a

  • Thibaut Delcroix, Weighted Kähler geometry and semisimple principal fibrations (Lecture III)

    B236-1 IBS, Korea, Republic of
    Algebraic Geometry Seminar

        Speaker Thibaut Delcroix Université de Montpellier In Kähler geometry, especially in the questions of existence of canonical Kähler metrics, the volume form ωn associated with a Kähler form ω plays a central role. In weighted Kähler geometry, we consider a Kähler manifold X equipped with a Hamiltonian action of a torus T, a

  • Thibaut Delcroix, Weighted Kähler geometry and semisimple principal fibrations (Lecture IV)

    B236-1 IBS, Korea, Republic of
    Algebraic Geometry Seminar

        Speaker Thibaut Delcroix Université de Montpellier In Kähler geometry, especially in the questions of existence of canonical Kähler metrics, the volume form ωn associated with a Kähler form ω plays a central role. In weighted Kähler geometry, we consider a Kähler manifold X equipped with a Hamiltonian action of a torus T, a

  • Long Li, Plurisubharmonic functions and Sasaki geometry

    B236-1 IBS, Korea, Republic of
    Several Complex Variables Seminar

        Speaker Long Li ShanghaiTech University In this talk, we will discuss the recent progress on the zero mass conjecture for plurisubharmoinc functions, raised by Guedj and Rashkovskii. For a local plurisubharmonic function with an isolated singularity at the origin, the conjecture states that the zero Lelong number (at the singularity) implies the zero

  • Jie Liu, Symplectic singularities arising from cotangent bundles

    B236-1 IBS, Korea, Republic of
    Algebraic Geometry Seminar

        Speaker Jie Liu AMSS I'll report joint works with Baohua Fu (AMSS), in which we investigate symplectic singularities arising from the affinization of the cotangent bundle of a smooth variety.

  • Progress in Complex Geometry

    B109 IBS, Korea, Republic of
    Conferences and Workshops

    The goal of the workshop is to INTRODUCE some of the most interesting recent developments in complex geometry to (young) people working in areas related to complex geometry. For this purpose, the speakers will try to make the talks understandable to broad audience. Invited Speakers 2-hours lectures Bin Guo (Rutgers U.) Shigeharu Takayama (U. Tokyo)

  • Ilya Kossovskiy, Divergence in CR Geometry

    B236-1 IBS, Korea, Republic of
    Several Complex Variables Seminar

        Speaker Ilya Kossovskiy SUSTech In this lecture, I will outline convergence and divergence phenomena for mappings of CR submanifolds in complex space. Possible applications for mappings of more general geometric structures will be also concerned.

  • Meng Chen, The Noether inequality for algebraic threefolds

    B236-1 IBS, Korea, Republic of
    Algebraic Geometry Seminar

        Speaker Meng Chen Fudan University In this talk, I will present a complete proof for the following theorem: the inequality K3 ≥ 4/3 pg-10/3 holds for all 3-folds of general type.

  • JongHae Keum, Fake quadric surfaces

    B236-1 IBS, Korea, Republic of
    Algebraic Geometry Seminar

        Speaker JongHae Keum KIAS A smooth projective complex surface S is called a Q-homology quadric if it has the same Betti numbers as the smooth quadric surface. Let S be a Q-homology quadric. Then its cohomology lattice is of rank 2, (even or odd) unimodular. By the classification of surfaces, S is either

  • Gian Pietro Pirola, Asymptotic directions on the moduli space of curves

    B236-1 IBS, Korea, Republic of
    Algebraic Geometry Seminar

        Speaker Gian Pietro Pirola University of Pavia We present some computational improvements that allow us to study asymptotic lines in the tangent of the moduli space Mg of the curves of genus g. The asymptotic directions are those tangent directions that are annihilated by the second fundamental form induced by the Torelli map.

  • Benjamin McMillan, Secondary Characteristic classes and Chern-Weil theory of (Haefliger) singular foliations I

    B236-1 IBS, Korea, Republic of
    Complex Geometry Seminar

        Speaker Benjamin McMillan IBS CCG Foliations have a theory of characteristic classes that is much like that of vector bundles, but with notable differences. Some of the characteristic classes of a foliation come from its induced normal bundle, but there are additional secondary classes that depend on more detailed information about the foliation.