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  • Workshop on Classical Algebraic Geometry

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

    Speakers Alberto Calabri (University of Ferrara) Cinzia Casagrande (University of Torino) Flaminio Flamini (University of Rome Tor Vergata) Paola Frediani (University of Pavia) Kangjin Han (DGIST) Zhi Jiang (SCMS, Fudan University) Akihiro Kanemitsu (Saitama University) Grzegorz Kapustka (Jagiellonian University) Michał Kapustka (IM PAN) Seonja Kim (Chungwoon University) Hirokazu Nasu (Tokai University) Wenbo Niu (University of …

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  • Workshop on Torus Actions in Symplectic and Algebraic Geometry

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

    Lecture Series Kiumars Kaveh (University of Pittsburgh) Hendrik Süß (University of Jena)* Susan Tolman (University of Illinois at Urbana-Champaign) Research Talks Lara Bossinger (UNAM) Isabelle Charton (University of Haifa) Oliver Clarke (University of Edinburgh) Peter Crooks (Utah State University) Naoki Fujita (Kumamoto University) Yoosik Kim (Pusan National University) Donggun Lee (IBS CCG) Joseph Palmer (University …

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  • Youngju Kim, Tubular Neighborhoods in Complex Hyperbolic Manifolds

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

        Speaker Youngju Kim Konkuk University The collar lemma says that a closed geodesic in a real hyperbolic 2-manifold has an embedded tubular neighborhood whose width only depends on the length of the geodesic. The width of the collar does not depend on the underlying hyperbolic 2-manifold. On the other hand, a totally geodesic …

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  • Caucher Birkar, Stable Minimal Models

    on-line
    Algebraic Geometry Seminar

    Zoom ID: 880 6763 5837 PW: 312515     Speaker Caucher Birkar Tsinghua University In this talk I will introduce stable minimal models and discuss some related results and if times allows, problems. (This seminar is a part of School and Workshop on Moduli, K-trivial Varieties, and Related Topics)

  • School and Workshop on Moduli, K-trivial Varieties, and Related Topics

    IBS Science Culture Center Daejeon, Korea, Republic of (On Feb 23, the venue will be in B109, IBS)
    Conferences and Workshops

    Speakers for Mini-courses (Feb 21~23) Harold Blum (University of Utah) Radu Laza (Stony Brook University) Colleen Robles (Duke University) Speakers for Workshop (Feb 21~23, and 26-29) Kenneth Ascher (UC Irvine) Philip Engel (Univ. of Bonn) Laure Flapan (Michigan State University) Yoon-Joo Kim (Columbia University) Kyoung-Seog Lee (POSTECH) Zhiyuan Li (SCMS, Fudan University) Yuchen Liu (Northwestern …

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  • Gebhard Martin, Automorphisms of del Pezzo Surfaces I

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

        Speaker Gebhard Martin Universität Bonn Motivated by the classification of finite subgroups of the Cremona group of the plane, I will survey old and new results on automorphism groups of del Pezzo surfaces. In particular, I will report on joint work with Igor Dolgachev on the classification of automorphism groups of smooth del …

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  • Claudia Stadlmayr, Which Rational Double Points Occur on del Pezzo Surfaces?

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

        Speaker Claudia Stadlmayr Technische Universität München Canonical surface singularities, also called rational double points (RDPs), can be classified according to their dual resolution graphs, which are Dynkin diagrams of types A, D, and E. Whereas in characteristic different from 2, 3, and 5, rational double points are "taut", that is, they are uniquely …

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  • Gebhard Martin, Automorphisms of del Pezzo Surfaces II

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

        Speaker Gebhard Martin Universität Bonn Motivated by the classification of finite subgroups of the Cremona group of the plane, I will survey old and new results on automorphism groups of del Pezzo surfaces. In particular, I will report on joint work with Igor Dolgachev on the classification of automorphism groups of smooth del …

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  • Gebhard Martin, Automorphisms of del Pezzo Surfaces III

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

        Speaker Gebhard Martin Universität Bonn Motivated by the classification of finite subgroups of the Cremona group of the plane, I will survey old and new results on automorphism groups of del Pezzo surfaces. In particular, I will report on joint work with Igor Dolgachev on the classification of automorphism groups of smooth del …

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  • Boris Doubrov, Bifiltered Parabolic Geometries

    B266 IBS, Korea, Republic of
    Complex Geometry Seminar

        Speaker Boris Doubrov Belarusian State University, Minsk We introduce the notion of a bifiltered manifold and generalizing the constructions of the symbol and Tanaka prolongation from nilpotent differential geometry. Next, we consider bifiltered manifolds modeled by bigradings of simple Lie algebras and show how this generalizes known constructions in the parabolic geometries such …

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  • Dennis The, On 4D Split-conformal Structures with G2-symmetric Twistor Distribution

    B266 IBS, Korea, Republic of
    Complex Geometry Seminar

        Speaker Dennis The The Artic University of Norway, Tromso In their 2013 article, An & Nurowski considered two surfaces rolling on each other without twisting or slipping, and defined a twistor distribution (on the space of all real totally null self-dual 2-planes) for the associated 4D split-signature conformal structure. If this split-conformal structure …

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  • Yong Hu, Noether Inequality for Irregular Threefolds of General Type

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

        Speaker Yong Hu Shanghai Jiao Tong University Let X be a smooth irregular 3-fold of general type. In this talk, we will prove that the optimal Noether inequality vol(X) ≥ (4/3) pg(X) holds if pg(X) ≥ 16 or if X has a Gorenstein minimal model. Moreover, when X attains the equality and pg(X) …

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