Fakultät für Mathematik

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Dr. Albrecht Seelmann


Name Dr. Albrecht Seelmann
Adress: Technische Universität Dortmund
Fakultät für Mathematik
Lehrstuhl LSIX
Vogelpothsweg 87
44227 Dortmund
Room M 624
Telephone (0231) 755-3432
(0231) 755-3063 (Sekretariat)
Telefax (0231) 755-5219
E-mail albrecht.seelmann (at) math.tu-dortmund.de

Teaching

Summer term 2018

Organisation, exercise class, and global exercise class for Analysis II

Previous teaching

Research

Research interests
Peer-reviewed articles
  1. A. Seelmann: Semidefinite perturbations in the subspace perturbation problem, accepted at Journal of Operator Theory. Preprint arXiv:1708.02463 [math.SP] (2017).
  2. K. A. Makarov, S. Schmitz, A. Seelmann: On invariant graph subspaces, Integral Equations and Operator Theory 85 (2016), 399–425. DOI: 10.1007/s00020-016-2297-y. Preprint arXiv:1509.07984 [math.SP] (2015).
  3. A. Seelmann: Notes on the subspace perturbation problem for off-diagonal perturbations, Proceedings of the American Mathematical Society 144 (2016), 3825–3832. DOI: 10.1090/proc/13118. Preprint arXiv:1412.6294 [math.SP] (2014).
  4. K. A. Makarov, A. Seelmann: The length metric on the set of orthogonal projections and new estimates in the subspace perturbation problem, Journal für die reine und angewandte Mathematik 708 (2015), 1–15. DOI: 10.1515/crelle-2013-0099.
  5. A. Seelmann: Notes on the sin2Θ theorem, Integral Equations and Operator Theory 79 (2014), 579–597. DOI: 10.1007/s00020-014-2127-z. Preprint arXiv:1310.2036 [math.SP] (2013).
  6. A. Seelmann: On an estimate in the subspace perturbation problem, accepted at Journal d'Analyse Mathématique. Preprint arXiv:1310.4360 [math.SP] (2013).
Dissertation

Perturbation theory for spectral subspaces, Mainz 2014, https://publications.ub.uni-mainz.de/theses/volltexte/2014/3862/pdf/3862.pdf

Preprints
  1. A. Seelmann: A minimax principle in spectral gaps, Appendix to Unique continuation and lifting of spectral band edges of Schrödinger operators on unbounded domains by I. Nakić, M. Täufer, M. Tautenhahn, and I. Veselić, arXiv:1804.07816 [math.SP] (2018).
  2. K. A. Makarov, A. Seelmann: Metric properties of the set of orthogonal projections and their applications to operator perturbation theory, arXiv:1007.1575 [math.SP] (2010).

Short CV

Kontakt

TU Dortmund
Fakultät für Mathematik
Lehrstuhl IX
Vogelpothsweg 87
44227 Dortmund


Sie finden uns auf dem sechsten Stock des Mathetowers .


Sekretariat: Janine Textor
Raum M 620


E-mail:
janine.textor@tu-dortmund.de


Tel. (0231) 755-3063
Fax (0231) 755-5219



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