MMG720 Differential Geometry Spring 25

This page contains the program of the course: lectures, exercise sessions and computer labs. Other information, such as learning outcomes, teachers, literature and examination, are in a separate course PM.

A summary of important concepts and results from the course can be found here: Important concepts and results

Exam: 250604.pdf
Solutions: Sols250604.pdf

Exam: 250821.pdf
Solutions: Sols250821.pdf

Program

The schedule of the course is in TimeEdit.

Lectures

Week Sections Contents Lecture notes
13-14 2.1-3 Curve theory: introduction, different types of curves, arc length, curvature and torsion, Frenet formulae, fundamental thms. for plane and space curves, four-vertex thm and the isoperimetric inequality Ch2_Curves.pdf
15 & 17-18 3.1-8 Classical surface theory:  regular surfaces, smooth maps and diffeomorphisms, the tangent plane and the differential of a map, 1st and 2nd fundamental form, normal fields and orient ability, curvature, examples of classes of surfaces such as ruled surfaces and surfaces of revolution.  Ch3_ClassSurfaceTh.pdf
19-20 4.1-7 The inner geometry of surfaces: isometries, vector fields and covariant derivative, Christoffel symbols, Riemann curvature tensor, Gauss's eq. and Theorema Egregium, geodesics, the exponential map and special coordinate systems, parallel transport. Ch4_Part1.pdf
Ch4_Part2.pdf
Ch4_Part3.pdf
21 5.2 & 6.1-3 Geometry, analysis and topology: variation of the metric, triangulations and the Gauss-Bonnet thm Ch5.pdf
GaussBonnet.pdf

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Recommended exercises

Chapter Exercises
2 1, 4, 5, 7, 8, 11, 13, 16
3 2, 4, 6, 7, 10, 11, 18, 19, 23, 31, 32
4 2, 3, 5, 6, 7, 8, 11, 18, 19, 20, 22, 25, 26, 28
6 1, 2, 3, 5, 6

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Homework

There will be three sets of homework, with each set giving a maximum of 4 points towards the final grade, see Course PM. The homework will be available as assignments in Canvas during the following periods.

Homework Available
1 Tuesday 25/3 8:00 - Wednesday 9/4 17:00
2 Thursday 24/4 8:00 - Friday 9/5 17:00
3 Tuesday 13/5 8:00 - Wednesday 28/5 17:00

Course summary:

Course Summary
Date Details Due