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Series expansions among weighted Lebesgue function spaces and applications to positive definite functions on compact two-point homogeneous spaces
dc.contributor.author | Simões Barbosa, Victor | |
dc.contributor.author | Gregori, Pablo | |
dc.contributor.author | Peron, Ana P. | |
dc.contributor.author | Porcu, Emilio | |
dc.date.accessioned | 2022-10-28T16:51:40Z | |
dc.date.available | 2022-10-28T16:51:40Z | |
dc.date.issued | 2022-07-11 | |
dc.identifier.citation | Barbosa, V. S., Gregori, P., Peron, A. P., & Porcu, E. (2022). Series expansions among weighted Lebesgue function spaces and applications to positive definite functions on compact two-point homogeneous spaces. Journal of Mathematical Analysis and Applications, 516(1), 126487. | ca_CA |
dc.identifier.issn | 0022-247X | |
dc.identifier.uri | http://hdl.handle.net/10234/200653 | |
dc.description.abstract | Geodesically isotropic positive definite functions on compact two-point homogeneous spaces of dimension d have series representation as members of weighted Lebesgue spaces Lw 1 ([−1, 1]), where the weight w(x) = wα,β(x) = (1 − x)α(1 + x)β is the one related to the Jacobi orthogonal polynomials P(α,β)(x) in [−1, 1], and the exponents α and β are related to the dimension d. We derive some recurrence relations among the coefficients of the series representations under different exponents, and we apply them to prove inheritance of positive definiteness between dimensions. Additionally, we give bounds on the curvature at the origin of such positive definite functions with compact support, extending the existing solutions from d-dimensional spheres to compact two-point homogeneous spaces. | ca_CA |
dc.description.sponsorShip | Funding for open access charge: CRUE-Universitat Jaume I | |
dc.format.extent | 26 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Elsevier Inc. | ca_CA |
dc.relation.isPartOf | Journal of Mathematical Analysis and Applications, Vol. 516, Issue 1 (December 2022) | ca_CA |
dc.rights | © 2022 The Author(s). | ca_CA |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | ca_CA |
dc.subject | positive definite functions | ca_CA |
dc.subject | compact two-point homogeneous spaces | ca_CA |
dc.subject | recurrence relations | ca_CA |
dc.subject | curvature at the origin | ca_CA |
dc.subject | Jacobi polynomials | ca_CA |
dc.title | Series expansions among weighted Lebesgue function spaces and applications to positive definite functions on compact two-point homogeneous spaces | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1016/j.jmaa.2022.126487 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion | ca_CA |
project.funder.name | Agencia Estatal de Investigación (España) | ca_CA |
project.funder.name | Conselho Nacional de Desenvolvimento Científico e Tecnológico-CNPq (Brazil) | ca_CA |
project.funder.name | FAPESP, Brazil | ca_CA |
project.funder.name | Khalifa University of Science and Technology (Abu Dhabi, UAE) | ca_CA |
oaire.awardNumber | PID2019-107392RB-I00 | ca_CA |
oaire.awardNumber | 203033/2019-1 | ca_CA |
oaire.awardNumber | 2021/04269-0 | ca_CA |
oaire.awardNumber | FSU-2021-016 | ca_CA |
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