bio  website  people.virginia.edu/~aa4cr/… 

location  University of Virginia  
age  
visits  member for  4 years, 3 months 
seen  yesterday  
stats  profile views  3,242 
I am a mathematical physicist working on:
• Constructive quantum field theory.
• Rigorous renormalization group methods.
• Mathematical statistical mechanics.
• Combinatorics related to Feynman diagrams and cluster expansions.
• Classical invariant theory, and applications of the classical symbolic method to problems in algebraic geometry and representation theory.
1d

comment 
A class of matrix determinants between Wronskians and Vandermondes
the formula in 1.4 is still about the specialization to the diagonal so I don't know the answer to the question in your first comment. 
1d

awarded  Custodian 
1d

reviewed  Close What is induction to n^(n1) >= n! for n=9,10 
1d

reviewed  Approve suggested edit on An easy proof that S(n) does not embed into A(n+1)? 
1d

comment 
Number of graphs with n vertices and k edges up to isomorphy
did you check out Brendan McKay page cs.anu.edu.au/~bdm it has data about graphs and also links to software you can use? 
Oct 19 
awarded  Custodian 
Oct 19 
reviewed  Leave Open “Nice” functions on infinitedimensional space of germs of continuous functions at a point 
Oct 19 
reviewed  Close A criterion of norm null sequences in Banach space 
Oct 19 
reviewed  Approve suggested edit on Does $ \text{mult}(R / I) = d_{1} \cdots d_{r} $ imply that $ (f_{1},\ldots,f_{r}) $ is an $ R $regular sequence? 
Oct 19 
answered  A class of matrix determinants between Wronskians and Vandermondes 
Oct 17 
awarded  Necromancer 
Oct 17 
revised 
Discriminant of a polynomial in two variables
added 2 characters in body 
Oct 17 
revised 
Discriminant of a polynomial in two variables
added 427 characters in body 
Oct 17 
revised 
Discriminant of a polynomial in two variables
added 6 characters in body 
Oct 17 
answered  Discriminant of a polynomial in two variables 
Oct 17 
comment 
Composition of multilinear forms agreeing on a subset of points
if linear in 1 variable $x$ means $x\mapsto ax+b$ then the correct terminology I believe is multiaffine polynomial. 
Oct 17 
comment 
Composition of multilinear forms agreeing on a subset of points
what do you mean by "multilinear polynomial"? 
Oct 17 
comment 
Shiftinvariant symmetric functions in representation theory?
They are also closely related to covariants of binary forms and therefore the representation theory of SL2. 
Oct 13 
comment 
Commutation relations for Dirac and Pauli electron
The commutation relation between $x$ and $p$ has nothing to do with what it acts on, be it $\psi^{\rm Pauli}$ or your friendly wave function from QM instead of QFT. It is just because $x$ is multiplication by $x$ and $p$ is $i$ times $d/dx$. 
Oct 13 
comment 
Homomorphisms from irreducible spaces to reducible spaces
I would look up the book "Young Tableaux" by William Fulton and especially Chapter 8 on the representations of the general linear group. 