My Blog-Notes
 
 
1-Forms on the half-line [0,∞[
Saturday, July 23, 2016
This is a direct proof of a result established already in a previous post with Paul Donato, that a
 
The Geodesics of the Torus T2
Sunday, July 17, 2016
We describe the space of geodesics trajectories of the 2-torus T2 = R2/Z2, which is not a
 
Use of the Moment Map in Geodesic Calculus
Thursday, April 21, 2016
We show how the use of Moment Map can simplify noticeably some proofs in computing geodesics. In
 
Symplectic Spaces Without  Hamiltonian Diffeomorphisms
Friday, March 4, 2016
This exercise treats a special case of “symplectic space”: the product of 2 irrational tori. We
 
The Differential of a Lie-Group Valued Function
Monday, February 29, 2016
After a natural question raised by Cheyne Miller recently, I found necessary to precise the
 
I put here some remarks and exercises on Diffeology. You can use them as long as you cite your source (as indicated on the post). Enjoy :-) I fixe also some mistakes or misprints found in the Book, Look the Errata file. ../The%20Book.htmlhttp://math.huji.ac.il/~piz/documents/DBlog-Errata.pdfshapeimage_7_link_0shapeimage_7_link_1
Get the updated ERRATA file
of the book Diffeology here...
Send me your comment  mailto:piz@math.huji.ac.il?subject=From%20your%20Blogshapeimage_9_link_0