DamienC
|
Registered User
|
I am interested in Mathematical Physics, Algebra, and Geometry.
|
|
May 11 |
revised |
Does the vanishing of the Poisson bracket on $S(\mathfrak{g})^{\mathfrak{g}}$ inspire the disover of Duflo’s isomorphism theorem? fixed typo with Poisson brackets |
|
May 9 |
accepted | Does the vanishing of the Poisson bracket on $S(\mathfrak{g})^{\mathfrak{g}}$ inspire the disover of Duflo’s isomorphism theorem? |
|
May 8 |
awarded | ● Necromancer |
|
May 8 |
answered | Does the vanishing of the Poisson bracket on $S(\mathfrak{g})^{\mathfrak{g}}$ inspire the disover of Duflo’s isomorphism theorem? |
|
Apr 7 |
comment |
sh Lie algebra cohomology @Jim Conant: higher sh Lie operations have arity in arbitrary positive degree, but they also have an inner cohomological degree which is precisely 1-arity. So that their total degree is still 1. |
|
Mar 14 |
comment |
The Work of Pierre Deligne Is this question appropriate for mathoverflow? I personnally believe not: what kind of answer can one expect? |
|
Mar 13 |
comment |
PhD in operator algebras and non-commutative geometry Benameur is no longer in Metz. He is now in Montpellier. |
|
Feb 28 |
awarded | ● Necromancer |
|
Jan 28 |
comment |
Is the quantum algebra unique (up to isomorphism) in deformation quantization ? @Adrien. I think that point 2 is not the content of Dolgushev's paper (though related to it). But your last sentence is correct (and THIS is the main point of 2.). @Alexander 1. I was just saying that if you make the choice of a local universal formality morphism (i.e. given by weights associated to graphs) then the globalization is essentially unique. @Alexander 2. this is not what I am saying BUT in the context of the class of a star-product, the Poisson structures you are looking at are of the form $\hbar\pi+\cdots$. wiht a given fixed $\pi$. If $\pi$ is ND then they are all equivalent. |
|
Jan 28 |
answered | Is the quantum algebra unique (up to isomorphism) in deformation quantization ? |
|
Jan 8 |
revised |
Video lectures of mathematics courses available online for free url was wrong |
|
Dec 12 |
comment |
The BCH series in terms of Lyndon words Is it really periodic or something more like a sturmian sequence? Namely, if one writes "A" whenever the even and odd guys coincide, and then "B" whenever they don't, then one gets a (semi-)infinite word in two letters "A" and "B". Is this sequence ultimately periodic or sturmian (the later meaning that it is of minimal complexity among non-periodic words)? |
|
Dec 6 |
answered | trace of the atiyah class equals chern class |
|
Dec 5 |
comment |
Todd class and Baker-Campbell-Hausdorff, or the curious number $12$ I actualy mean quasi-coherent sheaves (the action of $T_X[-1]$ on a given one $E$ is given by the Atiyah class of $E$). |
|
Dec 5 |
awarded | ● Nice Answer |
|
Dec 5 |
awarded | ● Necromancer |
|
Dec 5 |
answered | Todd class and Baker-Campbell-Hausdorff, or the curious number $12$ |
|
Dec 5 |
comment |
Video lectures of mathematics courses available online for free I added the (hyper)link. |
|
Dec 5 |
revised |
Video lectures of mathematics courses available online for free added 58 characters in body |
|
Dec 5 |
comment |
Video lectures of mathematics courses available online for free For me it says "404 Not Found". |
|
Dec 5 |
comment |
Video lectures of mathematics courses available online for free Would you mind giving a link ? :-) |
|
Dec 5 |
answered | Video lectures of mathematics courses available online for free |
|
Dec 4 |
comment |
det(A)det(B) = det(AB+correction), Capelli identities, “factorzied” representation of gl_n I would suggest to see if this is true even when you consider non-commutative variables $E_{ij}$ that are not necessarily of the form $a_ib_j$. |
|
Dec 1 |
comment |
Non-rigorous reasoning in rigorous mathematics Why isn't it CW? |
|
Nov 28 |
comment |
One more question about PBW There is also has a relatively simple example in archive.numdam.org/ARCHIVE/ASNSP/… (see also the discussion here: mathoverflow.net/questions/61954 ). |
|
Nov 28 |
revised |
One more question about PBW added 14 characters in body |
|
Nov 28 |
comment |
One more question about PBW I know that PBW holds whenever $k\supset\mathbb{Q}$. About my EDIT, this was just a dummy suggestion for a strategy. I was thinking about something like: if $L\to U(L)$ is injective and if PBW holds for $L\otimes_k\mathbb{K}$ (for some $\mathbb{K}$) then PBW holds for $L$ |
|
Nov 27 |
asked | One more question about PBW |
|
Nov 27 |
revised |
Existence of dg realization for 6 functors update reference |
|
Nov 25 |
revised |
A fibrant-objects structure on Top added 1 characters in body; edited body; edited body |
|
Nov 25 |
answered | A fibrant-objects structure on Top |
