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We will also consider their connection with the automorphic space problem of Lindenstrauss and Rosenthal --do there exist automorphic spaces other than $c_0(I)$ and $\\ell_2(I)$?-- showing that"},"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":"1307.4386","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.FA","submitted_at":"2013-07-16T19:29:38Z","cross_cats_sorted":[],"title_canon_sha256":"4f1494140d61f49e978874542f8ec641d65784568a1fb19e7a482cbe7430b409","abstract_canon_sha256":"a3631ac6e5671e93efe384ae06e75b526b04de436d7c3f0f66f5fa8736d34aa9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:18:18.971304Z","signature_b64":"Appt5AgMHRFI9UjnYIw0n43ifBTSvE+SYKWnbc1swyULIKBG1SzQE1zINyO0JhcF0R15gaJnQxHd7t2abigBBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29d37f3b5ded1ce4b43783b92e25d7d45b29f21f042b23b9f5b9c981c8563eb1","last_reissued_at":"2026-05-18T03:18:18.970621Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:18:18.970621Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On Uniformly finitely extensible Banach spaces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.FA","authors_text":"Jes\\'us M. 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