Research group in Nonlinear Algebra

Head:
Bernd Sturmfels

Contact: Email
Phone:
+49 (0) 341 - 9959 - 750

Address:
Inselstr. 22
04103 Leipzig

Administrative Assistant:
Saskia Gutzschebauch
Email, Phone/Fax:
+49 (0) 341 - 9959
- 752
- 658

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Summer 2021

Foundations of Algebraic Geometry

  • Lecturer: Daniele Agostini
  • Date: Thursday, 17:15 - 18:45
  • Room: Videobroadcast via Zoom. Please send an email to Daniele Agostini for the link.
  • Prerequisites: Commutative algebra and algebraic geometry at an undegraduate level
  • Remarks: Attendance is free but registration is required. To register or for any other information contact Daniele Agostini.

Abstract

The idea of this reading group is to develop the basic notions of modern algebraic geometry, through the language of schemes. References: We will follow closely the wonderful lecture notes by Vakil: Other useful textbooks are: The definitive references on the topic are: Course log A brief description of each session's content will appear on this website.

Real Algebra and Geometry

  • Lecturer: Rainer Sinn
  • Date: Tuesdays, 15:15 - 16:45
  • Room: Videobroadcast. Please send an email to Rainer Sinn for the link.

Abstract

In the field of Real Algebra, the main basic objects are orderings of algebraic structures. We will particularly focus on ordered fields (examples are the rational and real numbers) and see that the set of sums of squares plays a special role in this theory. In particular, we will discuss Artin's solution of Hilbert's 17th problem. We will also study quantifier elimination and basics in semi-algebraic geometry (an example of a tame geometry). Towards the end of the semester, we will also study questions in real algebraic geometry, in particular real questions in classical projective geometry. Prior knowledge in abstract algebra is sufficient. Basics in algebraic geometry and commutative algebra are helpful but not necessary. Materials You will find materials for the course either directly on this website or on Moodle, the learning platform used by the University of Leipzig.

IMPRS Ringvorlesung

21.10.2021, 02:30