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dc.contributor.authorStanley, Richard P.
dc.date.accessioned2012-07-26T19:06:45Z
dc.date.available2012-07-26T19:06:45Z
dc.date.issued2010-01
dc.date.submitted2009-05
dc.identifier.isbn978-0-8218-4865-4
dc.identifier.isbn0821848658
dc.identifier.urihttp://hdl.handle.net/1721.1/71850
dc.descriptionDedicated to Reza Khosrovshahi on the occasion of his 70th birthday.en_US
dc.description.abstractA permutation a1a2 · · · an of 1, 2, . . . , n is alternating if a1 > a2 < a3 > a4 < · · · . We survey some aspects of the theory of alternating permutations, beginning with the famous result of Andr´e that if En is the number of alternating permutations of 1, 2, . . . , n, then ... = sec x + tan x. Topics include refinements and q-analogues of En, various occurrences of En in mathematics, longest alternating subsequences of permutations, umbral enumeration of special classes of alternating permutations, and the connection between alternating permutations and the cd-index of the symmetric group.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (grant No. 0604423)en_US
dc.language.isoen_US
dc.publisherAmerican Mathematical Societyen_US
dc.relation.isversionofhttp://www.ams.org/bookstore-getitem/item=conm-531en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alike 3.0en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/en_US
dc.sourcearXiven_US
dc.titleA Survey of Alternating Permutationsen_US
dc.typeArticleen_US
dc.identifier.citationStanley, Richard P. "A Survey of Alternating Permutations." in Combinatorics and Graphs: the twentieth anniversary conference of IPM Combinatorics, May 15-21, 2009, Tehran, Iran, edited by Richard A. Brualdi, Samad Hedayat, Hadi Kharaghani, Gholamriza B. Khosrovshahi and Shahrair Shahrairi.(in Contemporary Mathematics), American Mathematical Society, 2010.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mathematicsen_US
dc.contributor.approverStanley, Richard P.
dc.contributor.mitauthorStanley, Richard P.
dc.relation.journalCombinatorics and Graphsen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/ConferencePaperen_US
dspace.orderedauthorsStanley, Richard P.en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-3123-8241
mit.licenseOPEN_ACCESS_POLICYen_US
mit.metadata.statusComplete


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