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  • Pacific Rim Complex and Symplectic Geometry Conference

    IBS Science Culture Center Daejeon, Korea, Republic of
    Conferences and Workshops

    Invited Speakers Dongwook Choa (KIAS, Seoul) Young-Jun Choi (Pusan National Univ.) Siarhei Finski (École Polytechnique) Hervé Gaussier (Univ. Grenoble-Alpes) Masafumi Hattori (Kyoto Univ.) Siqi He (AMSS, Beijing) Ludmil Katzarkov (Univ. Miami) Yusuke Kawamoto (ETH, Zurich) Takayuki Koike (Osaka Metropolitan Univ.) Yu-Shen Lin (Boston Univ.) George Marinescu (Univ. Köln) Yuichi Nohara (Meiji Univ.) Semon Rezchikov (Princeton …

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  • Sheng Meng, On Surjective Endomorphisms of Projective Varieties

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

        Speaker Sheng Meng East China Normal University Let X be a normal projective variety over C. Let f be a surjective endomorphism of X. In this talk, I will try to explain our current program on the classification and the building blocks of (f, X), involving two main tools: equivariant minimal model program …

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  • Chuyu Zhou, Lecture 1: Constructible Properties of Various Domains for a Family of Couples

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

        Speaker Chuyu Zhou Yonsei University In this lecture, I will recall some basic knowledge on K-stability and some background on wall crossing in proportional setting. Then we plan to conduct a comparison between proportional case and non-proportional case. Under the comparison, we will define several domains associated to a family of couples and …

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  • Chuyu Zhou, Lecture 2: Non-linear Wall Crossing Theory

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

        Speaker Chuyu Zhou Yonsei University In this lecture, we will talk about two properties of K-semistable domains in non-proportional setting. One is the finiteness criterion, which states that the number of domains is finite for a family of couples. The other is about the shape of each domain, which states that they are …

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  • Xiaojun Huang, Bounding a Levi-flat Hypersurface in a Stein Manifold

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

        Speaker Xiaojun Huang Rutgers Univ Let M be a smooth real codimension two compact submanifold in a Stein manifold. We will prove the following theorem: Suppose that M has two elliptic complex tangents and suppose CR points are non-minimal. Assume further that M is contained in a bounded strongly pseudoconvex domain. Then M …

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  • Changho Han, Trigonal Curves and Associated K3 Surfaces

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

        Speaker Changho Han Korea university K3 surfaces, as a generalization of elliptic curves, have a rich amount of geometric properties. Recalling that elliptic curves are double covers of rational curves branched over 4 distinct points, there are K3 surfaces that are cyclic triple covers of rational surfaces; Artebani and Sarti classified such generic …

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  • Justin Lacini, On Log del Pezzo Surfaces in Positive Characteristic

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

        Speaker Justin Lacini Princeton university A log del Pezzo surface is a normal surface with only Kawamata log terminal singularities and anti-ample canonical class. Over the complex numbers, Keel and McKernan have classified all but a bounded family of log del Pezzo surfaces of Picard number one. In this talk we will extend …

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  • David Sykes, CR Hypersurfaces, Studying 2-nondegenerate Structures via Absolute Parallelisms

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

        Speaker David Sykes IBS CCG The basic problem of finding (local) biholomorphisms mapping one real hypersurface in a complex space onto another is only well understood for a limited class of hypersurfaces, and has a fundamental relationship to their induced CR geometries. Following a light historical survey of major results in the area, …

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  • Naoto Yotsutani, Bott Manifolds with the Strong Calabi Dream Structure

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

        Speaker Naoto Yotsutani Kagawa university We prove that if the Futaki invariant of a polarized Bott manifold (X, L) for any ample line bundle L vanishes, then X is isomorphic to the products of the projective lines. This talk is based on a work joint with Kento Fujita (algebro-geometrical approach), and another independent …

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