Details of MA3205 (Spring 2023)

Level: 3 Type: Theory Credits: 4.0

Course CodeCourse NameInstructor(s)
MA3205 Geometry of Curves and Surfaces Somnath Basu

Syllabus
Part I : Curves

Curves: Parametrized and regular curves, arc length, parametrization by arc length.

Local Theory: Tangent-normal-binormal frame, curvature, torsion, fundamental theorems of local theory of plane and space curves.

Global Theory: Simple curves, Jordan curve theorem (without proof), isoperimetric in-equality, four-vertex theorem.

Part II : Surfaces


Surfaces: Parametrization, change of parameters, smooth functions, tangent plane, differential, diffeomorphism, inverse and implicit function theorems.

Second Fundamental Form and Curvature: Gauss map; oriented surfaces; second fundamental form; Gauss, mean and principal curvatures; normal sections.

Integration on Surface: Definition of integral, partitions of unity, change of variables
formula, divergence theorem.

Geometry of Surfaces: Rigid motions and isometries, Gausss Theorema Egregium, geodesics.

Gauss-Bonnet Theorem : Index of a vector field at an isolated zero, Euler characteristic (if time permits).

Prerequisite
Analysis III (MA3101)

References
. Berger, M. and Gostiaux, B., Differential Geometry: Manifolds, Curves and Surfaces, Springer-Verlag.

2. Do Carmo, M.P., Differential Geometry of Curves and Surfaces, Prentice-Hall.

3. Montiel, S. and Ros, A., Curves and Surfaces, Graduate Studies in Mathematics, Vol. 69, American Mathematical Society.

4. ONeill, B., Elementary Differential Geometry (2nd Edition), Academic Press.

5. Pressley, A., Elementary Differential Geometry, Springer-Verlag.

6. Thorpe, J. A., Elementary Topics in Differential Geometry, Springer-Verlag

Course Credit Options

Sl. No.ProgrammeSemester NoCourse Choice
1 IP 2 Not Allowed
2 IP 4 Not Allowed
3 IP 6 Not Allowed
4 MP 2 Core
5 MP 4 Not Allowed
6 MR 2 Not Allowed
7 MR 4 Not Allowed
8 MS 10 Elective
9 MS 4 Not Allowed
10 MS 6 Elective
11 MS 8 Elective
12 RS 1 Elective
13 RS 2 Elective