Tom Copeland's user avatar
Tom Copeland's user avatar
Tom Copeland's user avatar
Tom Copeland
  • Member for 13 years, 2 months
  • Last seen this week
6 votes
0 answers
210 views

Origins of the generalized shift operator exp(t*g(z)d/dz)

6 votes
1 answer
414 views

Dyson's invitation: Opportunities in juxtaposition of incompatibles

5 votes
3 answers
795 views

Update on "Hopf algebras: their status and pervasiveness" by Hazewinkel

5 votes
0 answers
459 views

The Riemann zeta function and differential operators

5 votes
1 answer
404 views

Proofs of Euler's characteristic formula for n-Dim polytopes

5 votes
1 answer
624 views

Motzkin polynomials and enumeration of chord diagrams

5 votes
0 answers
465 views

Convex polytopes as "products" of lower dimensional polytopes of the same family

5 votes
1 answer
189 views

A uniqueness of the Stirling numbers?

5 votes
1 answer
227 views

Jack polynomials and the Witt algebra

5 votes
0 answers
595 views

The twisted kiss of the curvaceous cubic and the staid tetrahedron (references)

5 votes
1 answer
272 views

Continued fraction associated to KdV solitons

5 votes
0 answers
225 views

Schröder and graphical logic?

5 votes
1 answer
571 views

Infinite dimensional involutions: infinitely large sets of multivariate polynomials self-inverse under self-substitution

5 votes
1 answer
276 views

Cataland: Facets and partition polynomials of cluster complexes

5 votes
0 answers
91 views

Generalized Puiseux series for diagonal reflections of the curves $y = \frac{x}{(1-ax)(1-bx)^m}$

4 votes
1 answer
682 views

Connections to physics, geometry, geometric probability theory of Euler's beta integral (function)

4 votes
2 answers
2k views

Canonical reference for Chern characteristic classes

4 votes
1 answer
509 views

Derivatives of Riemann $\xi$ and traces of zeros

4 votes
0 answers
207 views

Conjecture on tilting modules for an Auslander algebra

3 votes
0 answers
173 views

Refined f- and h-partition polynomials of the associahedra

3 votes
0 answers
163 views

A combinatorial / geometric interpretation of compositional inversion via matrix inversion

3 votes
3 answers
613 views

Expansions of iterated, or nested, derivatives, or vectors--conjectured matrix computation

3 votes
0 answers
248 views

Generalization of trace and associated determinant

3 votes
2 answers
291 views

Narayana polynomials as numerators of Ehrhart series rational functions?

3 votes
1 answer
389 views

Journey into a strange wilderness [closed]

3 votes
2 answers
340 views

Theories requiring dual continuous and discrete constructs

3 votes
0 answers
313 views

Intuitive, elementary intros to Hopf algebras/monoids

3 votes
0 answers
261 views

Guises of the refined Eulerian numbers, generated by tangent vectors (OEIS A145271)

3 votes
0 answers
141 views

Noncrossing partitions in Hopf algebras/monoids via compositional inversion

3 votes
1 answer
440 views

A number array related to colored necklaces and the primes