Results 41 to 50 of about 585 (68)

Fourier analysis on finite groups and the Lov\'asz theta-number of Cayley graphs

open access: yes, 2013
We apply Fourier analysis on finite groups to obtain simplified formulations for the Lov\'asz theta-number of a Cayley graph. We put these formulations to use by checking a few cases of a conjecture of Ellis, Friedgut, and Pilpel made in a recent article
de Laat, David   +2 more
core   +1 more source

A Note on the Stability Number of an Orthogonality Graph [PDF]

open access: yes
We consider the orthogonality graph (n) with 2n vertices corresponding to the vectors {0, 1}n, two vertices adjacent if and only if the Hamming distance between them is n/2.We show that, for n = 16, the stability number of (n) is ( (16)) = 2304, thus ...
Klerk, E. de, Pasechnik, D.V.
core   +1 more source

Exposed faces of semidefinitely representable sets

open access: yes, 2009
A linear matrix inequality (LMI) is a condition stating that a symmetric matrix whose entries are affine linear combinations of variables is positive semidefinite.
Netzer, Tim   +2 more
core   +1 more source

Complete positivity and distance-avoiding sets. [PDF]

open access: yesMath Program, 2022
DeCorte E, Filho FMO, Vallentin F.
europepmc   +1 more source

Disentangling orthogonal matrices. [PDF]

open access: yesLinear Algebra Appl, 2017
Zhang T, Singer A.
europepmc   +1 more source

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