Strictly and non-strictly positive definite functions on spheres
Bernoulli : official journal of the Bernoulli Society for Mathematical Statistics and Probability, 2013-09, Vol.19 (4), p.1327-1349 [Peer Reviewed Journal]2013 International Statistical Institute/Bernoulli Society ;Copyright 2013 Bernoulli Society for Mathematical Statistics and Probability ;ISSN: 1350-7265 ;DOI: 10.3150/12-bejsp06
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