bio | website | |
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location | ||
age | ||
visits | member for | 5 years, 6 months |
seen | Apr 22 at 12:03 | |
stats | profile views | 1,207 |
Apr 5 |
reviewed | Leave Open “frequency” of fields for which the p-adic regulator vanishes (mod p) |
Apr 5 |
reviewed | Approve Intuition and/or visualisation of Ito integral/Ito's lemma |
Apr 3 |
comment |
Finding commuting matrices
@JoonasIlmavirta That can't be right, since certainly scalar multiples of the identity commute with both $A$ and $B$. The feeling I have is rather that the eigenspaces of a matrix commuting with $A$ and $B$ should be big. Also, whether an eigenvalue is zero or not shouldn't matter, since $M$ will commute with $A$ and $B$ iff $\lambda I + M$ does. |
Apr 3 |
awarded | Custodian |
Apr 3 |
reviewed | Looks OK Random Walk on $\mathbb{R}$ with Uniformly Distributed Steps and “Reflective” Boundary at Origin |
Apr 2 |
awarded | Custodian |
Apr 2 |
reviewed | Leave Open divisible by all standard prime numbers |
Apr 1 |
answered | Why Jacobson, but not the left (right) maximals individually? |
Mar 31 |
answered | Infinitely many real roots |
Mar 28 |
answered | Reference that contains examples of absolutely indecomposable representations of quivers over a finite field |
Mar 14 |
answered | number of affine pieces of linear interpolation of convex functions in high dimension |
Feb 22 |
reviewed | Approve Is a distributive lattice planar iff it admits no B3 sublattice? |
Jan 24 |
comment |
What is a good introduction to cluster algebras from surfaces?
I should point out the canonical source for sources on cluster algebras: Fomin's "Cluster algebras portal", math.lsa.umich.edu/~fomin/cluster.html |
Jan 22 |
comment |
What is a good introduction to cluster algebras from surfaces?
@TomCopeland Thank you for reminding me about Lauren's notes, arxiv.org/abs/1212.6263 ! They seem to cover exactly what I wanted. If you make that an answer, I will accept it. |
Jan 20 |
comment |
What is a good introduction to cluster algebras from surfaces?
@JanGrabowski, thanks for pointing out Schiffler's notes, which I was unfamiliar with, and which may come in handy (but for the same reason as for the Schiffler paper Tom suggested, are not really what this question is asking for). |
Jan 20 |
comment |
What is a good introduction to cluster algebras from surfaces?
All suggestions are welcome, but in the interests of clarifying my question, I'll explain why Tom and Jan's suggestions aren't quite what I'm looking for. Tom's suggestion (a paper by Schiffler) doesn't have any Teichmuller theory at all, and what I really want is a straightforward explanation of the link to Teichmuller theory (interpreting cluster variables as lambda-lengths, etc.). Jan's suggestion (plus its sequel by Fomin-Thurston) are canonical sources, but I was hoping for something easier for a student to read, and which devotes less of its energy to the punctured case. |
Jan 19 |
comment |
What is a good introduction to cluster algebras from surfaces?
@darijgrinberg Gekhtman-Shapiro-Vainshtein takes a Poisson geometry approach, which is great, but I would like something more direct if possible. (Though maybe what I want can be found in there.) If you post a more specific question about "the algebraic and combinatorial parts", I may be able to help. Have you seen the notes from Fomin's Park City course, written up by Nathan Reading (arXiv:math/0505518)? |
Jan 19 |
asked | What is a good introduction to cluster algebras from surfaces? |
Jan 2 |
awarded | Civic Duty |
Dec 18 |
reviewed | Approve Rooks in three dimensions |