Jun.-Prof. Dr. Janina C. Letz
About me
I am a Junior Professor for Algebra at Paderborn University.
My research lies in the areas of commutative algebra, homological algebra and representation theory. I am interested in various algebraic triangulated categories, such as derived categories of modules over a ring or stable module categories, and the information they contain about the ring.
Prior to Paderborn, I was a postdoc at Bielefeld University. During the the academic year 2023/24 I visited the University of California, Los Angeles, funded by a Feodor Lynen Research Fellowship by the Humboldt foundation. In 2020 I obtained my PhD from the University of Utah, where my advisor was Srikanth Iyengar.
Publications
| Title | Co-Authors | Links | |
|---|---|---|---|
| [] | An equivalence linking CM types A-infinity and D-infinity | Charley Cummings, Sira Gratz, Ellen Kirkman, J. Daisie Rock, Špela Špenko | arXiv:2510.24642 |
| [] | Regular sequences for triangulated categories | Antonia Kekkou, Marc Stephan | arXiv:2509:09941 |
| [12] | Transfer of A-infinity structures to projective resolutions | — | Comm. Algebra (2025) arXiv:2312.13696 |
| [11] | Tensor extriangulated categories | Raphael Bennett-Tennenhaus, Isambard Goodbody, Amit Shah | J. Algebra, 685:361–405, 2025 arXiv:2502.18257 |
| [] | The Rouquier dimension of the category of perfect complexes over a regular ring | — | arXiv:2506.24038 |
| [10] | Realization functors in algebraic triangulated categories | Julia Sauter | Ab. Math. Semin. Univ. Hambg., 95:83–92, 2025 arXiv:2412.07455 |
| [9] | Koszul homomorphisms and universal resolutions in local algebra | Ben Briggs, James C. Cameron, Josh Pollitz | Forum Math. Sigma, 13:e63, 2025 arXiv:2310.08400 |
| [8] | Generation time for biexact functors and Koszul objects in triangulated categories | Marc Stephan | Doc. Math., 30(2):379–415, 2025 arXiv:2403.00695 |
| [7] | The Hochschild cohomology ring of monomial algebras | Dalia Artenstein, Amrei Oswald, Andrea Solotar | J. Algebra, 654:108–131, 2024 arXiv:2312.14699 |
| [6] | The spectrum of a well-generated tensor triangulated category | Henning Krause | Bull. Lond. Math. Soc., 55(2):680–705, 2023 arXiv:2203.03249 |
| [5] | Brown representability for triangulated categories with a linear action by a graded ring | — | Arch. Math. (Basel), 120(2):135–146, 2023 arXiv:2206.09646 |
| [4] | Exceptional complete intersection maps of local rings | Srikanth B. Iyengar, Jian Liu, Josh Pollitz | Pacific J. Math., 318(2):275–293, 2022 arXiv:2107.07354 |
| [3] | Locally Complete Intersection Maps and the Proxy Small Property | Ben Briggs, Srikanth B. Iyengar, Josh Pollitz | Int. Math. Res. Not. IMRN, 2022(16):12625–12652, 2022 arXiv:2007.08562 |
| [2] | Appendices in Maximal Cohen–Macaulay Modules and Tate Cohomology by Ragnar-Olaf Buchweitz | Luchezar Avramov, Ben Briggs, Srikanth B. Iyengar | volume 262 of Math. Surveys Monogr., 2021 |
| [1] | Local to global principles for generation time over Noether algebras | — | Homology Homotopy Appl., 23(2):165–182, 2021 arXiv:1906.06104 |
Current
Contact
Jun.-Prof. Dr. Janina Letz
Pure Mathematics - Algebra (Letz)
Room D2.335
Paderborn University
Warburger Str. 100
33098 Paderborn
Warburger Str. 100
33098 Paderborn