Niel de Beaudrap's user avatar
Niel de Beaudrap's user avatar
Niel de Beaudrap's user avatar
Niel de Beaudrap
  • Member for 14 years, 1 month
  • Last seen more than a month ago
  • Oxford, United Kingdom
10 votes
3 answers
4k views

Lagrange four-squares theorem: efficient algorithm with units modulo a prime?

8 votes
3 answers
1k views

Isolated quadratic residues in integers mod p

8 votes
0 answers
850 views

Decomposition of graphs as symmetric differences of copies of $K_{a,b}$

7 votes
0 answers
340 views

How does the number of self-avoiding paths between two points scale, in a square/cubic lattice?

6 votes
1 answer
412 views

Completely bounded norm for unital maps with completely positive sections

5 votes
3 answers
736 views

Transformations of integer polynomials under combinations of their roots

4 votes
2 answers
835 views

Can you explain the description of the Lovasz Local Lemma by Moser+Tardos?

4 votes
1 answer
573 views

Bounds on strong vertex colourings of regular hypergraphs?

4 votes
1 answer
196 views

Retractions for completely positive unital maps, with particularly nice norms

4 votes
0 answers
603 views

Expected number of components with multiple cycles in a subgraph of a square lattice

3 votes
0 answers
212 views

Unique structures in a class of connected directed hypergraphs

3 votes
1 answer
474 views

Bounds on operator 2-norms on partial traces of linearly related operators

3 votes
1 answer
4k views

Bound on the number of prime factors of logarithmically rough numbers

3 votes
1 answer
185 views

Walk with randomised boosts

3 votes
1 answer
900 views

Condition number of a random 0-1 matrix

3 votes
1 answer
1k views

A probability density function for pink noise

2 votes
1 answer
274 views

Walker whose Velocity is a Brownian Bridge

2 votes
1 answer
271 views

Bounds on singular values of invertible 0-1 matrices

2 votes
2 answers
344 views

Reference request: given a divisor d of N, how quickly can I obtain the largest factor of N coprime to d?

2 votes
0 answers
84 views

Presentation of tree decompositions (and related concepts) in terms of continuous maps?

2 votes
1 answer
107 views

Retractions for completely positive unital maps, and their effect on spectral diameter

1 vote
0 answers
464 views

How does the Schmidt decomposition generalize to tensor products of several finite-dimensional systems?

1 vote
1 answer
165 views

Conditions for subgraph relationship in circulant Cayley digraphs

1 vote
4 answers
1k views

Covering of a graph via independent sets