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A vector coloring of a graph is an assignment of a vector to each vertex where the presence or absence of an edge between two vertices dictates the value of the inner product of the corresponding vectors. In this paper, we obtain results on orthogonal vector coloring, where adjacent vertices must be assigned orthogonal vectors. We introduce two vector… (More)

- Jonathan Beagley, Lon H Mitchell, Sivaram K Narayan, Eileen Radzwion, Sara P Rimer, Rachael Tomasino +2 others
- 2013

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: The real (complex) minimum semidefinite rank of a graph is the minimum rank among all… (More)

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