My Blog-Notes
Embedding X in its Powerset P(X)
Monday, April 17, 2017
In this note we prove that the natural inclusion
j : X ⟶ P(X)   with    j : x ↦ {x},
of a
Vague Adjunction of Points to Spaces
Monday, April 17, 2017
We add a point to a diffeological space, counting for nothing, and we look at the consequences.
On Hamiltonian Diffeomorphisms
Thursday, December 15, 2016
We describe the group Ham(X, ω), of Hamiltonian transformations of a parasymplectic space (X, ω),
Diffeomorphisms of the Square
Thursday, December 15, 2016
We prove that the group of diffeomorphisms of the closed square
Sq = [0,1]2
has three orbits:
k-Forms on Half-Spaces
Thursday, July 28, 2016
With Serap Gürer, we prove that the differential k-forms on the half-spaces
Hn = [0,∞[ x Rn-1,
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.html
Get the updated ERRATA file
of the book Diffeology here...
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