Advanced Training in Mathematics Schools

Workshop: Riemannian Geometry

(Funded by National Board for Higher Mathematics)

19-30 July, 2010

 
Advanced Training in Mathematics Schools workshop on Riemannian Geometry is being organised at TIFR CAM, Bangalore in the month of July 2010.

                                                                                       

Speakers and Syllabus

Speakers: 1st Week
1 AM Anandateertha Mangasuli
2 CSA C S Aravinda
3 GS G Santhanam
4 HS Harish Seshadri
Speakers: 2nd Week
1 KS K Shankar
2 KV Kaushal Verma
3 SG Siddhartha Gadgil
4 TNV T N Venkataramana
5 GB Gautam Bharali

Schedule of Lectures

Date 0930-1100 1130-1300 1400-1500 1530-1700
19/7 (Monday) L1(CSA) L2(AM) Discussion L3(HS)
20/7 (Tuesday) L4(AM) L5(HS) Discussion L6(AM)
21/7 (Wednesday) L7(AM) L8(GS) Discussion L9(HS)
22/7 (Thrusday) L10(HS) L11(CSA) Discussion L12(CSA)
23/7 (Friday) L13(CSA) L15(GS) Discussion L14(CSA)
24/7 (Saturday) L16(GS) L17(AM) Discussion L18(HS)

 

Date 0930-1100 1130-1300 1400-1530 1600-1700
26/7 (Monday) KV1 KS1 SG1 GB(GL1)
27/7 (Tuesday) KV2 KS2 SG2 HS1(BT)*
28/7 (Wednesday) HS2(BT) KS3 SG3 TNV1(GL2)
29/7 (Thrusday) CSA1(RF) KS4
HS1(RF) TNV2(GL3)
30/7 (Friday) SG4 HS2(RF) CSA2(RF) KS(GL4)
* This lecture will be from 1600 to 1730 hrs.

First week

  • Lecture 1: Smooth manifolds - definition and examples; smooth functions, bump functions (smooth urysohn lemma); tangents vectors, vector fields, tensor fields - definition and properties (of tensors).

  • Lecture 2: Metric tensor, Riemannian manifolds, covariant differentiation, curvature tensors and curvatures; lengths of curves, distance function, geodesics, parallel transport and exponential map.

  • Lecture 3: Hopf-Rinow theorem.

  • Lecture 4: First and second variations of length and energy functionals; Jacobi fields, Gauss lemma.

  • Lecture 5: Cartan-Hadamard and Bonnet-Myers theorems.

  • Lecture 6: Models of constant curvature; Cartan’s theorem on the determination of the metric by (constant) curvatures.

  • Lecture 7: Rauch and Toponogov comparison theorems (include proof of Rauch but only state Toponogov).

  • Lectures 8, 9 and 10: Klingenberg’s injectivity radius estimate, Synge’s theorem, Bishop and Bishop-Gromov volume comparison theorems.

  • Lectures 11, 12, 13 and 14: Preissmann (and Flat-torus) theorems, Eberlein-O’Neill compactification, Busemann functions, classification of isometries (into elliptic, parabolic and axial or hyperbolic).

  • Lectures 15 and 16: Riemannian immersions, submersions; immersion and submersion equations; second fundamental form.

  • Lectures 17 and 18: Symmetric spaces of compact and noncompact type; their curvatures.

Second week

  • Shankar (KS) will give 4 lectures on the Soul theorem, the splitting the- orem, structure of fundamental groups in non-negative and positive curva- ture. About 4 lectures on Bochner technique (BT) (2 by KV and 2 by HS), 4 lectures on Ricci flow (2 by CSA and 2 by HS) and about 4 lectures on Gromov-Hausdorff convergence, by SG.

    Besides the above main series lectures, we will have two guest lectures by T N Venkataramana on the construction of compact and finite-volume quotients of real hyperbolic space forms, one guest lecture by Gautam Bharali on uniformization of surfaces and one guest lecture by K Shankar.