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David Roberson's user avatar
David Roberson's user avatar
David Roberson's user avatar
David Roberson
  • Member for 13 years, 1 month
  • Last seen more than a week ago
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About

Interested in algebraic graph theory and quantum information.

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Top posts
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question
13
Classical (i.e. commutative) spaces with quantum symmetry but no classical symmetry
Mar 4
question
11
Correspondence between matrix multiplication and a graph operation of Lovász
Jun 29, 2019
question
10
Cospectral mate of rhombic dodecahedron
Apr 28, 2017
answer
10
Computer program for counting graph homomorphisms
Jun 20, 2018
answer
9
Spectrum of orthogonality graph (2)
Mar 9, 2018
answer
9
Finite sets of vectors closed under an orthogonality property
Oct 23, 2015
question
8
Has anyone seen this graph?
Oct 18, 2011
question
8
Does there exist a nontrivial perfect group with a "locally commuting" presentation?
Mar 24, 2021
question
8
Partial order on graphs induced by homomorphism counts
Jan 25, 2023
answer
8
Graph homomorphisms and line graph
Oct 15, 2015