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Nathaniel Johnston's user avatar
Nathaniel Johnston's user avatar
Nathaniel Johnston's user avatar
Nathaniel Johnston
  • Member for 12 years, 10 months
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About

I am an Associate Professor at Mount Allison University in Sackville, New Brunswick, Canada. I am interested in quantum entanglement, combinatorics, matrix analysis, and (just to mix it up) Conway's Game of Life.

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question
49
A strengthening of the Cauchy-Schwarz inequality
Jun 2, 2018
answer
32
Necessary conditions for the existence of solution of Sylvester equation AX=XB
Feb 29, 2020
question
32
Orthogonal vectors with entries from $\{-1,0,1\}$
May 17
answer
31
Square root of doubly positive symmetric matrices
Oct 18, 2020
answer
28
Are infinite planar graphs still 4-colorable?
Dec 15, 2013
answer
25
What is the intuition for the trace norm (nuclear norm)?
Aug 6, 2017
answer
23
Which theorems have Pythagoras' Theorem as a special case?
May 5, 2022
answer
17
Possible values of the determinant for matrices with elements $\{1, 0, -1\}$
Apr 17, 2022
answer
17
positive not completely positive maps
Jul 15, 2015
answer
16
Operator norm of square root of matrix vs original
Dec 6, 2019
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23
Does $\lfloor(4+\sqrt{11})^{n}\rfloor \pmod {100}$ repeat every $20$ cycles of $n$?

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