Equiangular lines and covers of the complete graph

DOI10.1016/j.laa.2015.09.029zbMath1409.05220arXiv1504.00085OpenAlexW1722317191MaRDI QIDQ896854

Chris D. Godsil, Hamed Shirazi, Hanmeng Zhan, Gabriel Coutinho

Publication date: 14 December 2015

Published in: Linear Algebra and its Applications (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1504.00085

zbMATH Keywords

distance-regular graphstight framesequiangular linescovering graphsSIC-POVMs

Mathematics Subject Classification ID

Association schemes, strongly regular graphs (05E30) Matrices over special rings (quaternions, finite fields, etc.) (15B33) General harmonic expansions, frames (42C15)

Related Items

Unit gain graphs with two distinct eigenvalues and systems of lines in complex space, Covers of complete graphs and related association schemes, Equiangular tight frames that contain regular simplices, Tremain equiangular tight frames, Frames over finite fields: basic theory and equiangular lines in unitary geometry, Equiangular tight frames from group divisible designs, Doubly transitive lines. II: Almost simple symmetries, Graph covers with two new eigenvalues, Grassmannian codes from paired difference sets, Doubly transitive lines. I: Higman pairs and roux, Packings in Real Projective Spaces, Harmonic equiangular tight frames comprised of regular simplices, Polyphase equiangular tight frames and abelian generalized quadrangles

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