101 reputation
4
bio website amsta.leeds.ac.uk/~ypalu
location Leeds, UK
age 34
visits member for 4 years
seen Aug 4 '11 at 13:42

Oct
25
awarded  Nice Answer
Jul
11
answered The category of Abelian groups with selected elements
Apr
27
comment Which cluster algebras are coordinate rings of double Bruhat cells?
+1 for the tag cluster-algebras!
Feb
22
comment Is every balanced pre-abelian category abelian?
The reference: "Rump: Almost abelian categories" might interest you. It is proven in particular that if $\mathcal{A}$ is preabelian, then all canonical morphisms $coim(f) \to im(f)$ are mono and epi if and only if the category is semi-abelian (that is kernels and stable under composition and so are cokernels).
Feb
9
comment $230.$ (April, 1915) Proposed by E. B. Escott, Ann Arbor, Michigan
IF 0 is a cube, then I guess 0,0,0 is a solution...
Jan
24
answered Books you would like to read (if somebody would just write them…)
Jan
19
answered Recommended page layout settings for latex
Jan
19
awarded  Editor
Jan
19
comment quiver mutation
There could/should be a tag: cluster algebras...
Jan
19
revised quiver mutation
added 179 characters in body
Jan
19
answered quiver mutation
Oct
22
answered Intuition about the triangulation of a homotopy category K(A)
Oct
12
awarded  Supporter
Oct
7
awarded  Teacher
Oct
7
answered Glueing triangulated categories