Yonghwa Cho

I am currently a PostDoc at...

Mathematisches Institut
Lehrstuhl Mathematik VIII
Universität Bayreuth
Universitätsstraße 30
D-95447 Bayreuth, Germany

E-mail: y0nghwa.ch0_AT_uni-bayreuth.de
(replace two "0"s by the english alphabet "o", and "_AT_" by "@")

Last revised/verified : Nov 13, 2018



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Research Papers
  1. On derived categories of algebraic surfaces consturcted via $\mathbb{Q}$-Gorenstein smoothings, PhD Thesis, Korea Advanced Institute of Science and Technology, 2017.
  2. (w/ Yongnam Lee) Exceptional collections on Dolgachev surfaces associated with degenerations, Adv. Math. 324 (2018). (journal) (arXiv:1506.05213v4) (Macaulay2 Scripts)
  3. (w/ Federico Caucci, Luca Rizzi) On dominant rational maps from a very general complete intersection surface in P^4, Le Matematiche 72, no. 2 (2017). (journal)
  4. On derived categories of nonminimal Enriques surfaces, preprint. (arXiv:1612.09406) (Macaulay2 Scripts)
  5. (w/ Yeongrak Kim, Kyoung-Seog Lee) Ulrich bundles on intersections of two 4-dimensional quadrics, preprint. (arXiv:1704.03352)


Seminar & Conference Talks
  1. Three block collections and $\Q$-Gorenstein degenerations of del Pezzo surfaces, Algebraic geometry seminar, KAIST, Apr 25, 2018.
  2. Exceptional bundles and $\mathbb Q$-Gorenstein degeneration of surfaces, Oberseminar, Leibniz Universität Hannover, Feb 23, 2018.
  3. Exceptional blocks and $\mathbb Q$-Gorenstein degeneration of surfaces, Algebraic geometry seminar, KAIST, Jan 3, 2018.
  4. Categorical approach to the Ulrich bundles on Fano threefolds, Algebraic geometry seminar, KAIST, Dec 28, 2017.
  5. Ulrich bundles on prime Fano threefolds of index 2 and degree 4, Bielefeld Arithmetic Geometry Seminar, Universität Bielefeld, May 24, 2017.
  6. Exceptional collections on algebraic surfaces, Shinchon Workshop on Algebraic Geometry 2, Yonsei University, Feb 27-28, 2017
  7. Nonminimal surfaces admitting exceptional collections, Symposium in Algebraic Geometry, Busan, Dec 26-27, 2016
  8. Divisors on Dolgachev surfaces, IBS-CGP Seminar, Sep 27, 2016
  9. (Contributed Talk) Line bundles on surfaces associated with degenerations, Workshop on algebraic surfaces and moduli, KAIST, Apr 11-15, 2016
  10. Establishing exceptional collections of maximal length on Dolgachev surfaces using deformation theory, Workshop on Deformation and Moduli, Busan, Jan 20-23, 2016
  11. Line bundles on Lee-Park surfaces and applications to the study of derived categories I-III, Algebraic Geometry Seminar, KIAS, Dec 1-3, 2015
  12. Exceptional collection of maximal length on an algebraic surface with Kodaira dimension 1, ASARC Seminar, KAIST, Nov 10, 2015
  13. Line bundles on Dolgachev surfaces constructed via $\mathbb Q$-Gorenstein smoothing, Mini-workshop on Algebraic Surfaces, KIAS, Oct 15-16, 2015
  14. Cone of curves on algebraic varieties, After School on Minimal Model Program, KIAS, Apr 27-29, 2015
  15. Exceptional vector bundles on Dolgachev surfaces constructed via $\mathbb Q$-Gorenstein smoothing, KMS Spring Meeting, Apr 25, 2015
  16. Deformation theory of algebras, Algebra Seminar, KIAS, Feb 3, 2015