Absolutely Flat Idempotents

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dc.creatorGroves, Jonathan M.
dc.creatorHarel, Yonatan
dc.creatorHillar, Christopher J.
dc.creatorJohnson, Charles R.
dc.creatorRault, Patrick X.
dc.date2005-04-28
dc.date.accessioned2026-07-07T05:19:28Z
dc.date.available2026-07-07T05:19:28Z
dc.descriptionA real $n$-by-$n$ idempotent matrix $A$ with all entries having the same absolute value is called {\it absolutely flat}. We consider the possible ranks of such matrices and herein characterize the triples: size, constant, and rank for which such a matrix exists. Possible inequivalent examples of such matrices are also discussed.
dc.description11 pages, Electronic Journal of Linear Algebra
dc.identifierhttps://arxiv.org/abs/math/0504572
dc.identifierhttp://arxiv.org/abs/math/0504572
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/75030
dc.subjectOperator Algebras
dc.subject15A21,15A24,05A15,46B20
dc.titleAbsolutely Flat Idempotents
dc.typetext

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