Reputation
17,107
Next privilege 20,000 Rep.
Access 'trusted user' tools
Badges
17 110 156
Impact
~1.2m people reached

Mar
5
answered Experimental Mathematics
Mar
5
comment Linear Algebra Proofs in Combinatorics?
Actually yes ... It's possible to see who Tricki articles are by if you look at their revision history.
Mar
4
comment Counting distinct undirected, partially labelled graphs
Sorry, I meant triples closed under the given rotation (some, but not all, of which give you triangles). If the vertices are 0,1,2,3,4,5, then some examples of such triples are 01,23,45 and 03,14,25, and also the equilateral triangles 02,24,40 and 13,35,51. In fact, there's one more triple, namely 14,25,30, and any graph with rotational symmetry of order 3 is a union of these triples, so there are 32 such graphs.
Mar
4
revised Counting distinct undirected, partially labelled graphs
deleted 16 characters in body
Mar
4
answered Linear Algebra Proofs in Combinatorics?
Mar
4
answered Counting distinct undirected, partially labelled graphs
Mar
1
revised Resolution of a free lie algebra as a module over its universal enveloping algebra.
Changed "it's" to "its" in title.
Mar
1
answered Alive dynamical system
Feb
28
answered Ways to prove the fundamental theorem of algebra
Feb
27
comment Can a connected planar compactum minus a point be totally disconnected?
Is there an example of a compact connected set such that no two points can be joined by a path?
Feb
27
awarded  Nice Answer
Feb
26
revised Different ways of proving that two sets are equal
deleted 1 characters in body
Feb
26
answered Different ways of proving that two sets are equal
Feb
26
awarded  Nice Question
Feb
26
comment Heuristic argument for the prime number theorem?
That may indeed be exactly what I am looking for. I'll have to digest it carefully to see.
Feb
26
asked Heuristic argument for the prime number theorem?
Feb
25
revised Definition of longest common subsequences
Changed "it's" to "its"
Feb
25
answered Various concepts of “closure” or “completion” in mathematics
Feb
24
comment Value of “of course” in the mathematical literature
Was it by any chance me? Probably not, but it is something I have often said. But I didn't think it up for myself -- I got it from David Preiss. It's useful not just for evaluating the work of others, but also one's own work. That is, if you've just written a proof of something but don't feel quite secure about it, look for the bits where you didn't give full detail.
Feb
20
answered Similarly Ordered