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 My official website Legal Notice Privacy Statement

Publications and Preprints

MathSciNet, zbMATH, arXiv, Google Scholar, ORCID.

• Autoequivalences of Blow-Ups of Minimal Surfaces
  with Xianyu Hu
  Bull. London Math. Soc. 56, 3257–3267 (2024) (pdf, arXiv, journal)
• 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
  Math. Z. 307, 78 (2024) (pdf, arXiv, journal)

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.