Combinatorial proofs of five formulas of Liouville

DOI10.1016/j.disc.2013.11.011zbMath1339.11053OpenAlexW1985774683MaRDI QIDQ394303

Olivia X. M. Yao, Ernest X. W. Xia

Publication date: 27 January 2014

Published in: Discrete Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.disc.2013.11.011

zbMATH Keywords

quadratic formssum of squarescombinatorial proof

Mathematics Subject Classification ID

Combinatorial identities, bijective combinatorics (05A19) Sums of squares and representations by other particular quadratic forms (11E25)

Cites Work

• A quaternionic proof of the representation formula of a quaternary quadratic form
• Nineteen quaternary quadratic forms
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