{"schema_version":"4ort.packet/1","entity":{"entity_id":"leonid-friedlander","kg_uuid":"739ae860-a66b-4111-a1f3-b05008af7df4","wikidata_id":"Q102201507","name":"Leonid Friedlander","description":"Ph.D. Massachusetts Institute of Technology 1989","type":"Person","url":"https://4ort.xyz/entity/leonid-friedlander"},"status":"complete","as_of":{"copy_written_at":"2026-10-28T13:06:39Z","last_source_edit_seen":"2026-07-09T13:50:10Z","stale_possible":false,"claims_refreshed_at":"2026-10-29T14:16:34Z","source_revision":2562143342},"facts":[{"field":"P31","label":"instance of","value":"human","value_id":"Q5","value_raw":"Q5","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P31","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P569","label":"date of birth","value":"1953-10-09","value_id":null,"value_raw":"+1953-10-09T00:00:00Z","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P569","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"stated_in":"Library of Congress Name Authority File","stated_in_id":"Q18912790","retrieved":"2025-04-27"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P106","label":"occupation","value":"university teacher","value_id":"Q1622272","value_raw":"Q1622272","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P106","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P106","label":"occupation","value":"mathematician","value_id":"Q170790","value_raw":"Q170790","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P106","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"stated_in":"Integrated Authority File","stated_in_id":"Q36578","retrieved":"2026-04-20"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P856","label":"official website","value":"https://math.arizona.edu/~friedlan/","value_id":null,"value_raw":"https://math.arizona.edu/~friedlan/","rank":"normal","current":null,"qualifiers":[{"field":"P407","label":"language of work or name","value":"English"}],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P856","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P21","label":"sex or gender","value":"male","value_id":"Q6581097","value_raw":"Q6581097","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P21","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"stated_in":"Integrated Authority File","stated_in_id":"Q36578","retrieved":"2025-11-15"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P69","label":"educated at","value":"Massachusetts Institute of Technology","value_id":"Q49108","value_raw":"Q49108","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P69","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"stated_in":"Mathematics Genealogy Project","stated_in_id":"Q829984"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P69","label":"educated at","value":"Moscow State Institute of Electronics and Mathematics","value_id":"Q4304157","value_raw":"Q4304157","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P69","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"url":"https://math.arizona.edu/~friedlan/","retrieved":"2025-04-27"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P108","label":"employer","value":"University of Arizona","value_id":"Q503419","value_raw":"Q503419","rank":"normal","current":true,"qualifiers":[{"field":"P580","label":"start time","value":"1991"}],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P108","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"url":"https://math.arizona.edu/~friedlan/","retrieved":"2025-04-27"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P184","label":"doctoral advisor","value":"Victor Guillemin","value_id":"Q367252","value_raw":"Q367252","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P184","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"stated_in":"Mathematics Genealogy Project","stated_in_id":"Q829984"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P185","label":"doctoral student","value":"Olga Simek","value_id":"Q102201506","value_raw":"Q102201506","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P185","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"stated_in":"Mathematics Genealogy Project","stated_in_id":"Q829984"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P185","label":"doctoral student","value":"Gregory Peter Holmberg","value_id":"Q102201508","value_raw":"Q102201508","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P185","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"stated_in":"Mathematics Genealogy Project","stated_in_id":"Q829984"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P185","label":"doctoral student","value":"Jeffrey Lee Selden","value_id":"Q102268148","value_raw":"Q102268148","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P185","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"stated_in":"Mathematics Genealogy Project","stated_in_id":"Q829984"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P549","label":"Mathematics Genealogy Project ID","value":"45183","value_id":null,"value_raw":"45183","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P549","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P734","label":"family name","value":"Friedlander","value_id":"Q21449589","value_raw":"Q21449589","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P734","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P4955","label":"MR Author ID","value":"69430","value_id":null,"value_raw":"69430","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q102201507#P4955","source_edition":"2026-10-29T14:16:34Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}}],"unknowns":[],"omitted":{"facts":0,"reason":null},"licences":[{"source":"wikidata","source_name":"Wikidata","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"fields":["P31","P569","P106","P856","P21","P69","P108","P184","P185","P549","P734","P4955"]}],"routes":{"entity_page":"https://4ort.xyz/entity/leonid-friedlander","packet_api":"https://4ort.xyz/api/v1/entities/leonid-friedlander/packet","facts_jsonld":"https://4ort.xyz/entity/leonid-friedlander/facts.json","changes_api":"https://4ort.xyz/api/v1/knowledge/get_entity_changes?entity=leonid-friedlander","attention_api":"https://4ort.xyz/api/v1/knowledge/get_attention?entity=leonid-friedlander","wikidata":"https://www.wikidata.org/wiki/Q102201507","official_website":"https://math.arizona.edu/~friedlan/"},"trust_rules":{"wikidata-reference-support/2":"From the references in our copy of the statement: high = it cites a source (stated in P248, or a reference URL that is not Wikipedia); medium = only 'imported from Wikimedia project' or a Wikipedia URL; unscored = our copy holds no reference (older copies dropped references, so this is not evidence that Wikidata has none). Wikidata may hold more references than our copy shows. Reference support, not a probability."},"notes":[]}