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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Branquinho, Amílcar | pt_PT |
dc.contributor.author | Moreno, Ana Foulquié | pt_PT |
dc.contributor.author | Fradi, Assil | pt_PT |
dc.contributor.author | Mañas, Manuel | pt_PT |
dc.date.accessioned | 2022-11-02T15:54:49Z | - |
dc.date.available | 2022-11-02T15:54:49Z | - |
dc.date.issued | 2022-04-07 | - |
dc.identifier.issn | 2227-7390 | pt_PT |
dc.identifier.uri | http://hdl.handle.net/10773/35075 | - |
dc.description.abstract | In this paper, the Riemann–Hilbert problem, with a jump supported on an appropriate curve on the complex plane with a finite endpoint at the origin, is used for the study of the corresponding matrix biorthogonal polynomials associated with Laguerre type matrices of weights—which are constructed in terms of a given matrix Pearson equation. First and second order differential systems for the fundamental matrix, solution of the mentioned Riemann–Hilbert problem, are derived. An explicit and general example is presented to illustrate the theoretical results of the work. The non-Abelian extensions of a family of discrete Painlevé IV equations are discussed. | pt_PT |
dc.language.iso | eng | pt_PT |
dc.publisher | MDPI | pt_PT |
dc.relation | UID/MAT/00324/2020 | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04106%2F2020/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04106%2F2020/PT | pt_PT |
dc.relation | PGC2018-096504-B-C33 | pt_PT |
dc.rights | openAccess | pt_PT |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | pt_PT |
dc.subject | Riemann–Hilbert problems | pt_PT |
dc.subject | Matrix Pearson equations | pt_PT |
dc.subject | Matrix biorthogonal polynomials | pt_PT |
dc.subject | Discrete integrable systems | pt_PT |
dc.subject | Non-Abelian discrete Painlevé IV equation | pt_PT |
dc.title | Riemann–Hilbert problem for the matrix Laguerre biorthogonal polynomials: the matrix discrete Painlevé IV | pt_PT |
dc.type | article | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | yes | pt_PT |
degois.publication.issue | 8 | pt_PT |
degois.publication.title | Mathematics | pt_PT |
degois.publication.volume | 10 | pt_PT |
dc.relation.publisherversion | https://www.mdpi.com/2227-7390/10/8/1205 | pt_PT |
dc.identifier.doi | 10.3390/math10081205 | pt_PT |
dc.identifier.articlenumber | 1205 | pt_PT |
Appears in Collections: | CIDMA - Artigos CHAG - Artigos |
Files in This Item:
File | Description | Size | Format | |
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mathematics-10-01205-v2.pdf | 383.42 kB | Adobe PDF | View/Open |
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