{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:6EHFOTP4DUXFZD5BE76L6SPQRA","short_pith_number":"pith:6EHFOTP4","schema_version":"1.0","canonical_sha256":"f10e574dfc1d2e5c8fa127fcbf49f08833047500a60c51df25d3cd3e6e8efd2b","source":{"kind":"arxiv","id":"1812.07278","version":1},"attestation_state":"computed","paper":{"title":"Semi-Fredholm and Semi-Browder Spectra For $C_0$-Quasi-Semigroups","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.SP","authors_text":"Abdelaziz Tajmouati, Youness Zahouan","submitted_at":"2018-12-18T10:35:28Z","abstract_excerpt":"In this paper, we describe the different spectra of the $C_0$-quasi-semigroups by the spectra of their generators. Specially, essential ascent and descent,Drazin invertible, upper and lower semi-Fredholm and semi-Browder spectra."},"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":"1812.07278","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.SP","submitted_at":"2018-12-18T10:35:28Z","cross_cats_sorted":[],"title_canon_sha256":"a3362a329449ef441d8849e16de3f8edc320c3a51a7c55222387858cca395676","abstract_canon_sha256":"f298c0f86434eb122477c00a24e4077eae9842681d940b9e077a7a264a592788"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:00.972299Z","signature_b64":"xqi6vbY/tSKNfr3XRvpuDngxTMU1uB9db5E9knHWgdWkkQiU15vLcc1vTyDbMBq2K4t/hOh4XAJ2fijeGT7gAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f10e574dfc1d2e5c8fa127fcbf49f08833047500a60c51df25d3cd3e6e8efd2b","last_reissued_at":"2026-05-17T23:58:00.971626Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:00.971626Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Semi-Fredholm and Semi-Browder Spectra For $C_0$-Quasi-Semigroups","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.SP","authors_text":"Abdelaziz Tajmouati, Youness Zahouan","submitted_at":"2018-12-18T10:35:28Z","abstract_excerpt":"In this paper, we describe the different spectra of the $C_0$-quasi-semigroups by the spectra of their generators. Specially, essential ascent and descent,Drazin invertible, upper and lower semi-Fredholm and semi-Browder spectra."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.07278","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1812.07278","created_at":"2026-05-17T23:58:00.971735+00:00"},{"alias_kind":"arxiv_version","alias_value":"1812.07278v1","created_at":"2026-05-17T23:58:00.971735+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.07278","created_at":"2026-05-17T23:58:00.971735+00:00"},{"alias_kind":"pith_short_12","alias_value":"6EHFOTP4DUXF","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_16","alias_value":"6EHFOTP4DUXFZD5B","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_8","alias_value":"6EHFOTP4","created_at":"2026-05-18T12:32:08.215937+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6EHFOTP4DUXFZD5BE76L6SPQRA","json":"https://pith.science/pith/6EHFOTP4DUXFZD5BE76L6SPQRA.json","graph_json":"https://pith.science/api/pith-number/6EHFOTP4DUXFZD5BE76L6SPQRA/graph.json","events_json":"https://pith.science/api/pith-number/6EHFOTP4DUXFZD5BE76L6SPQRA/events.json","paper":"https://pith.science/paper/6EHFOTP4"},"agent_actions":{"view_html":"https://pith.science/pith/6EHFOTP4DUXFZD5BE76L6SPQRA","download_json":"https://pith.science/pith/6EHFOTP4DUXFZD5BE76L6SPQRA.json","view_paper":"https://pith.science/paper/6EHFOTP4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1812.07278&json=true","fetch_graph":"https://pith.science/api/pith-number/6EHFOTP4DUXFZD5BE76L6SPQRA/graph.json","fetch_events":"https://pith.science/api/pith-number/6EHFOTP4DUXFZD5BE76L6SPQRA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6EHFOTP4DUXFZD5BE76L6SPQRA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6EHFOTP4DUXFZD5BE76L6SPQRA/action/storage_attestation","attest_author":"https://pith.science/pith/6EHFOTP4DUXFZD5BE76L6SPQRA/action/author_attestation","sign_citation":"https://pith.science/pith/6EHFOTP4DUXFZD5BE76L6SPQRA/action/citation_signature","submit_replication":"https://pith.science/pith/6EHFOTP4DUXFZD5BE76L6SPQRA/action/replication_record"}},"created_at":"2026-05-17T23:58:00.971735+00:00","updated_at":"2026-05-17T23:58:00.971735+00:00"}