Graduate Courses Given

  1. Topology Graduate Course:- started on 27-07-07, continued till 11.04.08, place:- School of Mathematics, Tata Institute of Fundamental Research, title:-Topology. (Primary source: `Algebraic Topology' by E. Spanier). (Total 66 `one hour class-room lectures').
  2. Topology Graduate Course:- started on 10-08-15, continued till 15.04.16 place:- School of Mathematics, Tata Institute of Fundamental Research, title:-Topology. (Primary source: `Algebraic Topology' by E. Spanier, also from Hatcher's book). (Total 82 `one hour class-room lectures').
  3. `Manifold Topology' Advanced Graduate Course:- started on 20-07-16. (Write up of the first three lectures (5hrs) is in the published section: `Manifold Topology: A Prelude'. It contains some basic materials to make it accessible by students in India. Rest of the course includes Homotopy Theory, Differential Topology, Morse Theory, h-cobordism theorem...).

    Lectures Given

  1. Colloquium talk: date:- 12-09-96, place:- Tata Institute of Fundamental Research, title:- Subcomplex complements in {\Bbb S}^3: L-theory and curvature.
  2. Oberseminar Topologie: date:- 17-11-97, place:- Max-Planck Institut f\"{u}r Mathematik, title:- Surgery groups of submanifolds of the 3-sphere.
  3. MPI-Oberseminar: date:- 04-12-97, place:- Max-Planck Institut f\"{u}r Mathematik, title:- Nonpositive curvature on link complements and Surgery groups.
  4. Oberseminar Differential Geometry: date:- 09-12-97, place:- University of Bonn, title:- Surgery obstruction groups and nonpositive curvature in 3-manifolds.
  5. Colloquium talk: date:- 26-11-98, place:- Tata Institute of Fundamental Research, title:- Vanishing structure set of Haken 3-manifolds.
  6. Mathematics seminar: dates:- 06-04-99 and 08-04-99, place:-Mehta Research Institute, title:-  Vanishing structure set of Haken 3-manifolds.
  7. Oberwolfach meetings (Topologie): dates:- 06-09-98 to 12-09-98, place:- Mathematisches Forschungsinstitut Oberwolfach, title:-Algebraic K-theory of pure braid groups, talk presented by F.T. Farrell.
  8.  Mathematics seminar: dates:- 29-08-2000, place:- Mehta Research Institute, title:- Finiteness of simple homotopy type up to s-cobordism of aspherical 4-manifolds.
  9.  Allahabad Low Dimensional Topology Instructional Conference: date:- 18-12-2000 to 31-12-2000, place:- Allahabad University and Harish Chandra Research Institute, titles:-Knot theory and 3-manifolds (3 lectures); Seifert fibered spaces (1 lecture); 4-manifolds (1 lecture).
  10. Special Mathematics Seminar: date:- 15-02-2001, place:- Stat-Math Unit, Indian Statistical Institute, Calcutta, title:- K-theory of braid groups.
  11. Mathematics Seminar: date:- 30-04-2001, place:- Mathematics Section, The Abdus Salam ICTP, Trieste, Italy, title:- L-theory of 3-manifolds.
  12. Algebra/Topology/K-theory Seminars: date:- 02-05-2001, place:- Mathematics Section, The Abdus Salam ICTP, Trieste, Italy, title:- Algebraic K-theory of braid groups.
  13. Algebra/Topology/K-theory Seminars: date:- 09-05-2001, place:- Mathematics Section, The Abdus Salam ICTP, Trieste, Italy, title:- Simple homotopy types of aspherical 4-manifolds.
  14. Geometric Group Theory Seminar: dates:- 20,25,27-09-2001, place:- Harish-Chandra Research Institute, Allahabad, India, title:- Non-positively curved simplicial complexes.
  15. Colloquium talk: date:- 28-09-2001, place:- Harish-Chandra Research Institute, Allahabad, India, title:- A representation of generalized braid group in classical braid group.
  16. Colloquium talk: date:- 22-11-2001, place:- Tata Institute of Fundamental Research, title:- The Whitehead group of Artin braid group.
  17. Delhi Algebraic and Geometric Topology Conference: date:- 01-01-2002 to 04-01-2002, place:- Delhi University, Delhi, India, title:- Topology of 3-manifolds and a class of groups.
  18. Chennai Topological Methods in Group Theory workshop: date:- 15-07-2002 to 27-07-2002, place:- Institute of Mathematical Sciences, Chennai, India, title:- Cartan Hadamard theorem.
  19. Satellite Conference of ICM2002 on Geometric Topology: date:- 12-08-2002 to 16-08-2002, place:- Shaanxi Normal University, Xi'an, China, title:- Topology of 3-manifolds and a class of groups.
  20. International Congress of Mathematicians: date:- 20-08-2002 to 28-08-2002, place:- Beijing, China, title:- The Whitehead group of a class of discrete groups. This lecture was a short communication.
  21. VSRP lecture: dates:- 02-07-2003 and 04-07-2003, place:-Tata Institute, title:- Introduction to differentiable manifolds.
  22. Conference on Topology: dates:- 14-07-2003 to 25-07-2003, place:- Mathematical Sciences Institute, The Australian National University, Canberra, title:- Vanishing of Whitehead group of a class of groups.
  23. Joint India-AMS Mathematics meeting:- dates:- 17-12-2003 to 20-12-2003, place:- Indian Institute of Science, Bangalore, title:- On groups with (un)-stabilized derived series. This lecture was an invited talk in the special session on Algebraic and Geometric Topology.
  24. Algebraic Geometry Seminar:- date:- 14-05-2004, place:- Tata Institute of Fundamental Research, title:- Finite group action on simplicial complexes.
  25. An advanced instructional workshop on low-dimensional topology and geometric group theory:- dates:- 12-07-2004 to 24-07-2004, place:- Indian Statistical Institute, Bangalore, India, title:- K-theory of 3-manifold groups. (3 lectures).
  26. Oberseminar Topologie:- date:- 21-11-2005, place:- Mathematisches Institut, Universitaet Muenster, title:- The Isomorphism Conjecture for 3-manifold Groups.
  27. Colloquium talk:- date:- 20-07-2006, place:- Tata Institute of Fundamental Research, title:- The Farrell-Jones Isomorphism Conjecture for 3-manifold groups.
  28. VSRP lecture: dates:- 02-07-2008 and 09-07-2008, place:-Tata Institute of Fundamental Research, title:- Algebraic Topology.
  29. International Conference in Mathematics: date:- 18-03-2009, place:- Harish Chandra Research Institute, Allahabad, India, title:- The Farrell-Jones Isomorphism conjecture and groups acting on trees.
  30. Colloquium talk: date:- 18-03-2010, place:- Tata Institute of Fundamental Research, title:- The Isomorphism Conjecture for groups acting on trees.
  31. VSRP lecture: date:-30-06-2010, place:- Tata Institute of Fundamental Research, title:- The Schoenflies theorem for surfaces.
  32. The 76-th annual conference of the Indian Mathematical Society: place:- National Institute of Technology, Surat, India, title:- The Farrell-Jones Isomorphism Conjecture.
  33. An advanced instructional school in Algebraic Topology: dates:- 13-06-2011 to 02-07-2011, place:- North-Eastern Hill University, Shillong, India, title:- Fixed point and duality theorems in algebraic topology. (9 lectures).
  34. Geometry and Topology in Samos:-11-06-2012 to 15-06-2012, place:- The University of the Aegean, Samos, Greece, title:- The Farrell-Jones isomorphism conjecture for a certain class of groups. (On the occassion of the 70th birthday of Professor Tom Farrell).
  35. Conference on Group actions and applications in Geometry, Topology and Analysis, dates:- 21-07-2012 to 29-07-2012, place:- Kunming University of Science and Technology, Kunming, China, title:- The Isomorphism conjecture for groups acting on trees.
  36. 27th Annual Conference of the Ramanujan Mathematical Society, dates:- 19-10-2012 to 23-10-2012, place:-Shiv Nadar University, New Delhi, India, title:- K and L-theory of groups acting on trees.
  37. International ATM workshop on surgery theory and classification of manifolds, dates:- 17-06-2013 to 26-06-2013, place:-North-Esatern Hill University, Shillong, India, title:- Morse theory and $s$-cobordism theorem. (5 lectures)
  38. International conference on surgery theory and classification of manifolds, date:- 25-06-2013, place:-North-Eastern Hill University, Shillong, India, title:- K and L-theory of groups acting on trees.
  39. Topology and Groups, date:- 17-10-2015, place:- Goa University, title:- A generalisation of a certain class of Artin groups.
  40. Colloquium talk, date:-17-05-2016, place:-TIFR CAM, Bangalore, India, title:-Algebraic K and L-theory of Artin groups.
  41. Seminar talk, date:-26-05-2016, place:-IISC, Bangalore, India, title:- Algebraic K and L-theory of groups acting on trees.
  42. Seminar talk, date:-27-05-2016, place:-IISC, Bangalore, India, title:- The isomorphism conjecture for Artin groups.
  43. Students Seminar, date:- 14-06-16, place:- Tata Institute of Fundamental Research, title:-An obstruction group in Topology.