TQFT Club Meeting 30-Mar-2000
12.30 Lunch party meets at Restaurante "Rota do Colombo" (previously called "O Mimo").
All welcome.
Afternoon Session
Room 3.10 Mathematics Department, IST
14.00 - 15.15 João Nuno Tavares (Faculdade de Ciências, Universidade do Porto)
"Sobre o método do referencial móvel de E.Cartan"
Bibliografia:
A. Na exposição seguirei muito de perto:
- Cartan Elie, ``La theorie des groupes finis et continus et la
geometrie differentielle." Gauthiers-Villars, 1937.
- Cartan Elie, ``La methode du repere mobile, la theorie des
groupes continus et les espaces generalises." Hermann, 1935.
B. Outras referencias mais actuais e avançadas (que eu não vou abordar):
- Griffiths P., ``On Cartan's method of Lie groups and moving frames as
applied to uniqueness and existence questions in differential geometry."
Duke Math.
Journal 41 (1974), 775-814.
- Griffiths P., Harris J., ``Algebraic geometry and local
differential
geometry." Ann. Sci. Ecole Norm. Sup. 12 (1979), 355-452.
- Akivis M.A., Goldberg V.V. ``Projective differential
geometry of submanifolds." North-Holland, 1993.
- Akivis M.A., Goldberg V.V. ``Conformal differential
geometry and its generalizations." John Wiley and Sons, Inc., 1996.
C. Aplicações (que eu não vou abordar):
- Razumov A.V. ``Frenet Frames and Toda Systems",
math.DG/9901023
- Fels, M., Olver, P.J., ``Moving coframes I. A practical algorithm."
Acta Appl.
Math. 51 (1998) 161-213.
- Fels, M., Olver, P.J., ``Moving coframes II. Regularization and
theoretical
foundations." Acta Appl. Math. 55 (1999) 127-208.
15.30 - 16.45 Gustavo Granja (Instituto Superior Técnico)
"Elliptic cohomology"
Summary: I will explain how geometric descriptions of genera determine
geometric descriptions of the associated cohomology theories and then
give some examples. Then I will try to say something about the case of
elliptic genera. For these the geometric description is still not
rigorous.
References (I have copies of the non-web references, in case any one is interested):
- Haven't looked at this paper but it has a cool title:
Dijkgraaf, R.; Moore, G.; Verlinde,
E.; Verlinde, H.,
Elliptic genera of symmetric products and second quantized
strings.
Comm. Math. Phys. 185 (1997), no. 1, 197--209.
hep-th/9608096
- Witten, Ed.,
Elliptic genera and quantum field theory.
Comm. Math. Phys. 109 (1987), no. 4, 525--536.
Postscript from KEK library
- Hopkins, Michael J. Characters and elliptic cohomology. Advances in
homotopy theory (Cortona, 1988), 87--104, London
Math. Soc. Lecture Note Ser., 139, Cambridge Univ. Press, Cambridge-New
York, 1989
- M. J. Hopkins, M. Ando, and N. P. Strickland, "Elliptic spectra, the
Witten genus, and the theorem of the cube",
dvi file
- Segal, G. "Elliptic cohomology (after Landweber-Stong, Ochanine,
Witten, and others)". Séminaire Bourbaki, Vol. 1987/88. Astérisque
No. 161-162, (1988), Exp. No. 695, 4, 187--201 (1989).
16.45 Tea & chocolate biscuits!
DATE: Thursday, 30/03/2000
VENUE: Mathematics Department, Room 3.10
URL: http://www.math.ist.utl.pt/~rpicken/tqft
picken@math.ist.utl.pt