An example of a positive definite function which is not of positive type on Z2

DOI10.5036/MJIU.31.43zbMath0966.43003OpenAlexW2146031987MaRDI QIDQ4512387

Nobuhisa Sakakibara, Koji Furuta

Publication date: 1 November 2000

Published in: Mathematical journal of Ibaraki University (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.5036/mjiu.31.43

zbMATH Keywords

semigrouppositive definitepositive type

Mathematics Subject Classification ID

Positive definite functions on groups, semigroups, etc. (43A35)

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