Skip to main content
MathOverflow
Nathaniel Johnston's user avatar
Nathaniel Johnston's user avatar
Nathaniel Johnston's user avatar
Nathaniel Johnston
  • Member for 14 years
  • Last seen this week
Profile Activity

13 Questions

Score Activity Newest Views
51 votes
2 answers
5k views

A strengthening of the Cauchy-Schwarz inequality

35 votes
0 answers
1k views

Orthogonal vectors with entries from $\{-1,0,1\}$

7 votes
1 answer
270 views

Existence of a linear map resulting in the determinant being an elementary symmetric polynomial

6 votes
1 answer
509 views

Waring rank of monomials, and how it depends on the ground field

5 votes
0 answers
167 views

Bounding elementary symmetric polynomials away from zero

5 votes
1 answer
258 views

Dimension reduction for non-negativity of elementary symmetric polynomials

5 votes
0 answers
148 views

Groups of operators between local unitaries and full unitaries

4 votes
0 answers
109 views

Characterization of "PSD-Squared" Matrices

3 votes
0 answers
275 views

Schur-Horn theorem for principal submatrices

3 votes
0 answers
359 views

Do Isometry Groups Tell Us How Difficult Norms are to Compute?

3 votes
1 answer
294 views

Smallest number of subsets whose squares cover the whole square

2 votes
1 answer
460 views

Maximum permuted row/column sum of a matrix

0 votes
1 answer
114 views

Geometric interpretation of a Grammian-like function