I study representation theory, cluster algebras, geometric crystals, mathematical physics, semigroups.
17 Is $A \times B$ the same as $A \oplus B$? Mar 29 '13
13 How to prove a Wronskian identity? Jan 29 '12
8 Different definitions of rational mappings. Jul 15 '13
7 Difference between free groups, free product of two groups, tensor product of two infinite cyclic groups Mar 6 '12
7 What is the differences between scheme-theoretical intersection and set-theoretical intersection? Aug 30 '11