Homepage of Axel Kölschbach Ortego

I'm a second year PhD student in Arithmetic Geometry at the Max-Planck Institute for Mathematics in Bonn. My advisor is David Hansen. You can send me an email to koelschbach at mpim-bonn dot mpg dot de.

Here is my CV. About my mathematical work:

• Currently I am working on the completed cohomology of certain Harris–Taylor Shimura varieties.
• In my Master Thesis, I constructed the determinant line bundle on the Ainf affine Grassmanian and on Scholze's Bdr affine Grassmanian.
• In my Bachelor thesis, I wrote an exposition on the transcedental motive of a surface, first introduced by Kahn, Murre, Pedrini. Then I applied it to Huybrechts' notion of constant cycle curves.

Past teaching

In the winter term 2018/19, I was the teaching assistant for a class on local fields and class field theory by Dr. Oliver Bräunling. Here are the example sheets:

• Sheet 1
• Sheet 2
• Sheet 3
• Sheet 4
• Sheet 5
• Sheet 6
• Sheet 7
• Sheet 8
• Sheet 9
• Sheet 10
• Sheet 11
• Sheet 12

Bassoon

I am a dedicated bassoon player. If you are planning any concerts in the Cologne/Bonn area and need a bassoonist, drop me an email.

Last updated on 2021-06-20.