Here is the new version of my invited talk
“A general approach to the problem of action-angle variables” (PDF File: AATalk2014, version 26/10/2014)
to be presented et the conference in honour of Charles Michel Marle’s 70th birthday in November 2014 in Paris.
Here is the website of the conference: http://www.imcce.fr/Equipes/ASD/person/albouy/Marle2014.html
Next year I’ll come to Sanya, Hainan, China to attend “GAP XII”, an international conference on geometry and physics.
The organizers said they would have money to cover local expenses for a number of participants, so if anyone is interested in visiting Sanya, please contact them (or contact me if you don’t know them)
. . . → Read More: Geometry and Physics XII, Hainan (China), 10-14/03/2014
Will have to try to understand what does it mean :D
These are the notes that i’m trying to write up for the 5th lecture of my doctoral course “Basic principles of dynamical systems” in Toulouse. This lecture is about ergodicity.
I’m behind schedule in many things, so please be patient with me. The correct lecture notes will appear one day. I’m even planning to . . . → Read More: Dynamical Systems (5): Ergodicity
Lecture Notes in Mathematical Finance (links to the files)
Link đến các files bài giảng
Trường hè (Đại học kinh tế – luật & Trung tâm JVN):
Phạm Huyên, Stochastic Optimal Control in Finance
Luciano Campi, Pricing and Hedging in Energy Market
Mathieu Rosenbaum, High Frequency Trading: Part 1, Part 2, Part 3
Hội . . . → Read More: Toán tài chính: các bài giảng trường hè và hội nghị 2012
Below is a very interesting letter from Arieh Iserles about why should we boycott Elsevier:
—– I strongly encourage you to read the very recent posting of Doug Arnold on the IMU Journals’ blog, http://blog.mathunion.org/journals/ . Also, more humbly, my posting on Tim Gowers’s blog, Coming late to this discussion (but not to the issue . . . → Read More: Boycotting Elsevier: let’s join the efforts of our scientific community!
I’m coming back here to an old but still open (as far as I know) problem:
Show that a generic Hamiltonian system with a fixed point and whose resonance degree at that point is at least 2 is not formally integrable.
Recall that, if the system is non-resonant then it’s formally integrable due to . . . → Read More: Formal non-integrability of resonant systems
Last updated: 09/12/2011
This is a brief real-time report on the conference OSIF (Toulouse 1, 08-09/Dec/2011)
About 40+ participants. Some are my students :-) Lunchs and coffees are served at the conference free of charge for the participants :-). The organizers are A. Blanchet & S. Villeneuve (my colleagues at Toulouse 1)
9h30: . . . → Read More: Stochastic Control and Optimal Stopping in Finance (Toulouse 12/2011)
(Devoir Maison No. 3, Licence 2 en Mathématiques, Novembre 2011)
Exercice 1. (Somme de carrés des coefficients). Soit un espace euclidien de dimension , et soit .
1) Montrer que, si et sont deux bases orthonormales de , alors
En déduire que la quantité est indépendante de la base orthonormale choisie.
(Indication: utiliser . . . → Read More: Exercices d’algèbre linéaire (DM3/2011)
This is the list of books that we will order for the Doson School, with their ISBN numbers.
(There are too many books on the subject, and this selection is based mainly on the preferences of the lecturers).
1) B. Øksendal and A. Sulem: Applied Stochastic Control of Jump Diffusions, ISBN-10: 3540140239
2) H. . . . → Read More: Some Financial Maths Books with ISBN for Doson School
Updated 06/Dec/2011: This paper is now published online in Bulletin Brazilian Math Soc, Volume 42, Number 4, 853-867:
Finally I had the courage to revise my paper on the entropy of geometric structures. The revised version is here (pdf file).
This paper is relatively simple, but I still like it very . . . → Read More: Entropy of geometric structures
Updated 21/Oct/2011: The editors just informed us that this paper has been officially accepted for publication in Advances Math.
We have revised our paper (with Eva Miranda and Philippe Monnier) on the rigidity of Hamiltonian actions of compact semisimple Lie groups on Poisson manifolds.
The revised version is available here.
This paper was submitted . . . → Read More: Rigidity of Hamiltonian actions (revised version)
We want to buy some books on financial mathematics and bring them to Vietnam for the thematic school in Doson (24/Oct-01/Nov/2011).After the school, these books will be donated to a library in Hanoi.
I need a list of best books to buy. If you have any suggestion, please let me know by writing a . . . → Read More: List of books to be bought for the school on financial mathematics