Prof. Dr. Agnes Radl

Mathematik für Informatik
Hochschule Fulda
Gebäude 31, Raum 118
Leipziger Straße 123
36037 Fulda
+49 661 9640-3124
+49 661 9640-3009
Sprechzeiten:
Do 16 - 17 Uhr, siehe moodle-Kurs Sprechzeiten (eLearning).

Vita

seit 2022 Professur „Mathematik für Informatik“ an der Hochschule Fulda

Vertretungsprofessuren, Gastprofessuren:

  • 2019 Universität Leipzig, Vertretungsprofessur
  • 2008 Karl Franzens Universität Graz, Gastprofessur

wissenschaftliche Mitarbeiterin/Postdoc:
TU Berlin (2019-2022); Universität Greifswald (2017-2019); Universität Leipzig (2013-2017) Universität Bern, Schweiz (2011-2013); Karlsruher Institut für Technologie (2010-2011); Max-Planck-Institut für biologische Kybernetik in Tübingen, Abteilung für Maschinelles Lernen (2009-2010,2011); University of Otago in Dunedin, Neuseeland (2007-2008); Universität Siegen (2007); Eberhard Karls Universität Tübingen (2006-2007, 2008)

Lehrgebiete / Module

  • Mathematik für Informatik

Forschungsschwerpunkte

Funktionalanalysis: numerischer Wertebereich, Operatorentheorie

Anwendungen der Mathematik im Bereich des maschinellen Lernens

Publikationen

T. Eisner, A. Radl
Embeddability of real and positive operators, to appear in Linear and Multilinear Algebra.

Numerical Range

A. Radl, M. Wolff
Topological properties of the block numerical range of operator matrices, Oper. Matrices 14 (2020), 1001-1014.

W. Boubaker, N. Moalla and A. Radl
On the joint numerical spectrum in Banach spaces, Bull. Iranian Math. Soc. 45 (2019), 345-358.

A. Radl and M. P. H. Wolff
On the block numerical range of operators on arbitrary Banach spaces, Oper. Matrices 12 (2018), 229-252.

M. Adler, W. Dada and A. Radl
A semigroup approach to the numerical range of operators on Banach spaces, Semigroup Forum 94 (2017), 51-70.

A. Radl
The numerical range of positive operators on Banach lattices, Positivity 19 (2015), 603-623.

A. Radl
Perron-Frobenius type results for the block numerical range, Proc. Appl. Math. Mech. 14 (2014), 1001-1002.

A. Radl, C. Tretter and M. Wagenhofer
The block numerical range of analytic operator functions, Oper. Matrices 8 (2014), 901-934.

A. Radl
The numerical range of positive operators on Hilbert lattices, Integral Equ. Oper. Theory 75 (2013), 459-472.

Machine Learning

U. von Luxburg, A. Radl and M. Hein
Hitting and commute times in large random neighborhood graphs, Journal of Machine Learning Research 15 (2014), 1751-1798.

U. von Luxburg, A. Radl and M. Hein
Getting lost in space: Large sample analysis of the resistance distance, Neural Information Processing Systems (NIPS 2010), 2622-2630.

A. Radl, U. von Luxburg and M. Hein
The resistance distance is meaningless for large random geometric graphs, in E. Airoldi, J. Kleinberg, J. Leskovec, J. Tenenbaum (organizers): Analyzing Networks and Learning with Graphs, Workshop held in conjunction with the 22nd Annual Conference on Neural Information Processing Systems (NIPS), snap.stanford.edu/nipsgraphs2009/papers/radl-paper.pdf, 2009.

H. Fernau and A. Radl
Algorithms for learning function distinguishable regular languages, SSPR and SPR 2002, LNCS 2396, pp. 64-73. Berlin, Springer-Verlag, 2002.

Queueing Theory

A. Haji and A. Radl
A semigroup approach to the Gnedenko system with single vacation of a repairman, Semigroup Forum 86 (2013), 41-58.

A. Haji and A. Radl
A semigroup approach to queueing systems, Semigroup Forum 75 (2007), 610-624.

A. Haji and A. Radl
Asymptotic stability of the solution of the M/M^B/1 queueing model, Comput. Math. Appl. 53 (2007), 1411-1420.

Transport Processes in Networks

B. Dorn, M. Kramar Fijavz, R. Nagel and A. Radl
The semigroup approach to transport processes in networks, Physica D: Nonlinear Phenomena 239 (2010), 64-73.

A. Radl
Transport processes in networks with scattering ramification nodes, J. Appl. Funct. Anal. 3 (2008), 461-483.

Theses

A. Radl
Contributions to the numerical range and some applications of semigroup theory, Habilitationsschrift, Universität Leipzig (2015).

A. Radl
Semigroups applied to transport and queueing processes, Dissertation, Eberhard Karls Universitat Tübingen (2006).

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