Inner twists for Siegel modular forms and the images of associated Galois representations

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dc.contributor.authorBANERJEE, DEBARGHAen_US
dc.contributor.authorDebnath, Roniten_US
dc.contributor.departmentDept. of Mathematicsen_US
dc.date.accessioned2026-07-20T09:48:14Z
dc.date.available2026-07-20T09:48:14Z
dc.date.issued2026-00en_US
dc.description.abstractWe study the group of inner twists for Siegel modular forms of genus two. For lifted Siegel modular forms (these are Siegel modular forms obtained from elliptic modular forms by various functorial lifts), we compute the group of inner twists in terms of inner twists of elliptic modular forms. On the other hand, for non-lifted Siegel modular forms, we provide necessary and sufficient conditions for the existence of inner twists in terms of the Lie algebras of the images of Galois representations.en_US
dc.identifier.citationInternational Journal of Number Theoryen_US
dc.identifier.issn1793-0421en_US
dc.identifier.issn1793-7310en_US
dc.identifier.sourcetitleInternational Journal of Number Theoryen_US
dc.identifier.urihttps://doi.org/10.1142/S1793042126501216
dc.identifier.urihttp://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/11350
dc.language.isoenen_US
dc.publication.originofpublisherForeignen_US
dc.publisherWorld Scientificen_US
dc.subjectMathematicsen_US
dc.subject2026-JUL-WEEK3en_US
dc.subjectTOC-JUL-2026en_US
dc.subject2026en_US
dc.titleInner twists for Siegel modular forms and the images of associated Galois representationsen_US
dc.typeArticleen_US

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