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I am on parental leave from June 2020 to February 2021. Please don't hesitate to contact me via e-mail at any time.

Teaching and Seminars

Summer semester 2020

• Mathe II. Office hours: Monday 10-11, Thursday 11-12 via Zoom
  

Winter semester 2019/2020

• Exercise classes Mathe I. Monday, 16-18, NB 3/99; Wednesday, 10-12, ND 5/99
  
• Oberseminar Algebraische Lie-Theorie (M. Reineke, G. Röhrle). Monday, 14-16, IA 1/135.
  
• Kolloquium Algebra - Geometrie - Kombinatorik (M. Reineke, G. Röhrle, C. Stump). 16.10., 13.11., 29.11. IA 01/473
  
• Oberseminar Algebraische Geometrie (H. Flenner, M. Reineke). Monday, 12-14, IA 1/53.
  

CV

Boos Cv   (213.7 kB)

Publications and preprints

• Weight Spaces and Attracting Sets for Torus Actions on Quiver Moduli (with Hans Franzen)
  Preprint 2020. arxiv:2002.12049
  
• The (cyclic) enhanced nilpotent cone via quiver representations (with Gwyn Bellamy)
  manuscripta mathematica, Volume 161, Issue 3, 2020. arxiv:1609.04525
  
• Multi-graded nilpotent tuples
  Communications in Algebra, Volume 47, Issue 8, 2019. arxiv:1609.08593
  
• Parabolic orbits of 2-nilpotent elements for classical groups (with Giovanni Cerulli Irelli and Francesco Esposito)
  Journal of Lie Theory, Volume 29, Issue 4, 2019. arxiv:1802.06425
  
• Parabolic Conjugation and Commuting Varieties (with Michael Bulois)
  Transformation Groups, Volume 24, Issue 4, 2019. arxiv:1606.08840
  
• Semi-simplicity of the category of admissible D-modules (with Gwyn Bellamy)
  To appear in: Kyoto Journal of Mathematics. arxiv:1709.08986
  
• Staircase algebras and graded nilpotent pairs
  Journal of Pure and Applied Algebra, Volume 221, Issue 8, Pages 1899-2156, 2017. arxiv:1509.04584
  
• Finite parabolic conjugation and commuting varieties
  Oberwolfach Reports, No. 25/2015, Mathematisches Forschungsinstitut Oberwolfach, 2015.
  
• Non-Reductive Conjugation on the Nilpotent Cone
  Algebras and Representation Theory, Volume 17, Issue 6, pp 1683–1706, 2014. arxiv:1504.05374
  
• Finite Parabolic Conjugation on Varieties of Nilpotent Matrices
  Algebras and Representation Theory, Volume 17, Issue 6, pp 1657–1682, 2014. arxiv:1504.05367
  
• Bn-orbits of 2-nilpotent matrices and generalizations (with Markus Reineke)
  Highlights in Lie algebraic methods, Progr. Math., 295, Birkhäuser/Springer, New York, 2012. arxiv:1004.1996
  

Recent conferences and talks

2020

• February 4th. ABCD-Seminar, Cologne
  
• January 24th. Emmy-Noether-Seminar, Erlangen
  Talk: "Approaching degenerations in classical Lie types"
  

2019

• June 10th. Algebra and Representation Theory Seminar, Tor Vergata, Rome
  Talk: "Towards degenerations for algebras with self-duality"
  
• April 30th. Incontri di Algebra e Geometria, Sapienza Universität, Rom
  Talk: "Conjugation on the nilpotent cone"
  

2018

• April 20th-21st. Workshop "Discrete Categories in Representation Theory", Bielefeld
  
• March 12th-16th. Workshop "Tropical Geometry meets Representation Theory", Cologne
  
• March 5th-9th. Workshop "Geometry and Representation Theory of Algebraic Groups", Bad Honnef
  

2017

• November 9th. Bibo-Seminar , Bielefeld
  Talk: "The algebraic U-quotient of the nilpotent cone"
  
• September 4th-8th. Conference "Some Trends in Algebra 2017", Prag
  Talk: "The U-invariant ring of the nilpotent cone"
  
• July 21st. Oberseminar Darstellungstheorie, Bonn
  Talk: "Representation theory of the enhanced (cyclic) nilpotent cone"
  
• July 12th. Oberseminar der Arbeitsgruppe "Gruppen und Geometrie", Bielefeld
  Talk: "Examining parabolic group actions with quiver representations"
  
• February 06th. Oberseminar "Quivers and representations of algebras", Kaiserslautern
  Talk: "Using quiver representations to prove finiteness criteria"
  
• January 27th - 28th. Darstellungstheorietage 2016, Bochum (organized together with Britta Späth)
  

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