Inhaltsbeschreibung / course description and syllabus

Moodle: https://moodle.hu-berlin.de/course/view.php?id=106777
(für Einschreibeschlüssel siehe Inhaltsbeschreibung oben / see course info above for the enrolment key)

Vorlesungsskript / lecture notes

Whiteboard notes from online sessions
December 8 Übung (Dwivedi)
December 15 Übung (Dwivedi)
January 5 lecture
January 12 lecture
January 12 Übung (Dwivedi)
January 18 lecture
January 19 lecture
January 25 lecture
January 26 lecture
February 1 lecture
February 2 lecture
February 8 lecture
February 9 lecture
February 15 lecture
Some notes from other Übung sessions are also available on the moodle.

Ankündigungen / Announcements

• 12.04.2022: The exam results from 11.04.2022 are now posted. I will be available for Klausureinsicht in my office (1.301) on Tuesday 19.04.2022 from 14:00-15:00. If you can't make it during that time but would still like to look at your marked exam, send me an e-mail and we'll work something out.
• 18.01.2022: As a result of the internet outages that interrupted today's lecture, the video of the lecture exists in two parts, and a portion in the middle (containing most of the proof of the Gauss lemma) is unfortunately missing.

Exam info (NEW)

Here is a practice exam.

As indicated in the instructions on the practice exam, the actual exam will be open book, so you will be allowed to use any non-electronic resources you bring with you (i.e. books and notes, but not smartphones). Any material that was covered in the lectures in this course should be considered examinable; all of it is in the lecture notes, though the notes also contain some non-examinable material (anything that is labelled as an "Addendum" or marked with a footnote saying that it is provided only for information).

Prof. Wendl will be available during the usual Tuesday (online) office hour in the week preceding each exam date, i.e. on 22.2 and 5.4.

Übungsblätter / Problem sets

Problem sets will normally be posted in this spot every Wednesday and discussed in the problem session (Übung) the following week. They will not be collected or graded.

• Probelm Set 1
• Probelm Set 2
• Probelm Set 3
• Probelm Set 4
• Probelm Set 5 -- solution to Problem 1
  Note: A fifth problem that appeared on the version of this set handed out in lecture has been removed because the lecture didn't quite manage to cover enough material for it. Here's the original version, in case you're curious.
• Probelm Set 6 -- solution to Problem 4
• Probelm Set 7
• Probelm Set 8
• Probelm Set 9 -- complete solution set
• Problem Set 10
• Take-Home Midterm (due 26.01.2022)
  (This is an updated version in which a minor typo in Problem 1 has been fixed. You may have to press "refresh" in your browser to see the update.)
• Problem Set 11
• Problem Set 12
• Problem Set 13

Other useful links

• The teaser for Olaf Müller's seminar on systolic inequalities and Gromov's filling area conjecture (next semester)
• Leitfaden zur Durchfürung von Präsenzveranstaltungen
  Everyone attending lectures at the HU should read through this once at the beginning of the semester (with the aid of Google translate if necessary). It gives very important instructions on matters such as what to do if you develop cold symptoms (hint: that is a good situation in which to make use of the Zoom lecture broadcasts), and who must be informed if you get a positive Covid test result.
• Some nice pictures (by Patrick Massot) of non-integrable 2-dimensional distributions in three dimensions (also known as contact structures)