A combinatorial proof of Sun's "curious" identity

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dc.creatorCallan, David
dc.date2004-01-18
dc.date.accessioned2026-07-07T05:04:38Z
dc.date.available2026-07-07T05:04:38Z
dc.descriptionA binomial coefficient identity due to Zhi-Wei Sun is the subject of half a dozen recent papers that prove it by various analytic techniques and establish a generalization. Here we give a simple proof that uses weight-reversing involutions on suitable configurations involving dominos and colorings. With somewhat more work, the method extends to the generalization also.
dc.descriptionLatex, 7 pages
dc.identifierhttps://arxiv.org/abs/math/0401216
dc.identifierhttp://arxiv.org/abs/math/0401216
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/69880
dc.subjectCombinatorics
dc.subjectAMS Classification Numbers: 05A19
dc.titleA combinatorial proof of Sun's "curious" identity
dc.typetext

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