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When $c$ and $\\F$ satisfy a suitable admissibility condition, we prove that the polynomials $m_n^{a,c;\\F}$, $n\\in \\sigma_\\F$, are actually exceptional Meixner polynomials; that is, in addition, they are orthogonal and complete with "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1310.4658","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.CA","submitted_at":"2013-10-17T11:31:04Z","cross_cats_sorted":[],"title_canon_sha256":"1b0f4b62bab2afecd9152040d4a250f9f33818c74e1d4d6aea3fb82285b18afc","abstract_canon_sha256":"c08c22a3d2d47150d9e6edbfb1343d27df551c4ef0091f972c60648444506196"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:13.415263Z","signature_b64":"YQ8nAr0Ei85JcdIoXceh1EzGGImdAoVyHC3uVa0VehknhyIYTZBCufEijQx7om5RcIobWR8cuv/8bm2DKDtnBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"45afe8fb188083b7c34b770d093b8f6a3d8dc8095735007d8ba7ecbd6f129d0e","last_reissued_at":"2026-05-18T03:10:13.414647Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:13.414647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Exceptional Meixner and Laguerre orthogonal polynomials","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.CA","authors_text":"Antonio J. 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