Universität Regensburg   IMPRESSUM   DATENSCHUTZ
Fakultät für Mathematik Universität Regensburg
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Galois theory in algebra and topology
Semester
WiSe 2025 / 26

Lecturer
Moritz Kerz, Andrea Panontin, Yuenian Zhou

Type of course (Veranstaltungsart)
Seminar

German title
Galoistheorie in Algebra und Topologie

Contents
Galois theory is the study of certain extensions of a base object by inspecting the symmetries they
enjoy. Not too surprisingly, this vague idea can be applied in many areas of mathematics. In this
seminar we will look at how this phenomenon arises in algebra, looking at extensions of fields, in
topology, with topological coverings, and finally in differential geometry, with ramified extensions
of Riemann surfaces. This will allow us to observe the similarities between the various contexts.
Finally, we will use the extra differential structure of Riemann surfaces to translate some
algebraic questions in topological terms, and see how this can be applied to carry out certain
computations.

Literature
Galois Theory,Coverings, and Riemann Surfaces. Askold Khovanskii Algebra and Galois Theories.
Régine Douady Adrien Douady

Recommended previous knowledge
basics of topological spaces, algebra

Time/Date
Di, 16:00 - 18:00

Location
M 101

Additional question session
Time/Date: TBA
Location: TBA

Course homepage
https://elearning.uni-regensburg.de/course/view.php?id=71689
(Disclaimer: Dieser Link wurde automatisch erzeugt und ist evtl. extern)

Registration
  • Preliminary meeting: Mo, 21.07.25, 14:00 - 15:00 PHY 9.2.01A
  • Registration for course work/examination/ECTS: FlexNow
Course work (Studienleistungen)
  • Presentation: Giving a seminar talk of roughly 90 minutes
Examination (Prüfungsleistungen)
  • Detailed written report of the seminar talk
Modules
BSem, MV, MSem, BSem.2

ECTS
4,5