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bio website people.virginia.edu/~aa4cr/…
location University of Virginia
age
visits member for 4 years, 3 months
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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^(n-1) >= 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 infinite-dimensional 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 Shift-invariant 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.