Johannes Krah

I am a Ph.D. student at Bielefeld University under the supervision of Charles Vial.
I am interested in algebraic geometry, in particular derived categories of coherent sheaves.

Contact

Johannes Krah
Fakultät für Mathematik
Universität Bielefeld
Postfach 100 131
D-33501 Bielefeld

Office: UHG V3-238
Phone: +49 521 106-4968
E-Mail: jkrah@math.uni-bielefeld.de

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Publications and Preprints

MathSciNet, zbMATH, arXiv, Google Scholar, ORCID.

• Autoequivalences of Blow-Ups of Minimal Surfaces
  with Xianyu Hu
  Preprint (pdf, arXiv)
• On proper splinters in positive characteristic
  with Charles Vial
  Preprint (pdf, arXiv)
• A Phantom on a Rational Surface
  Invent. math. 235, 1009–1018 (2024) (pdf, arXiv, journal)
• Mutations of Numerically Exceptional Collections on Surfaces
  Preprint (pdf, arXiv)

Miscellaneous

In September 2023, I gave a talk at the IASM in Hangzhou as part of the workshop Geometry of HyperKähler Varieties. A video recording can be found here.