{"id":"https://openalex.org/W2091301941","doi":"https://doi.org/10.1016/j.jsc.2004.12.009","title":"Homotopy classification of maps between simply connected four manifolds","display_name":"Homotopy classification of maps between simply connected four manifolds","publication_year":2005,"publication_date":"2005-02-27","ids":{"openalex":"https://openalex.org/W2091301941","doi":"https://doi.org/10.1016/j.jsc.2004.12.009","mag":"2091301941"},"language":"en","primary_location":{"id":"doi:10.1016/j.jsc.2004.12.009","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.jsc.2004.12.009","pdf_url":null,"source":{"id":"https://openalex.org/S18904315","display_name":"Journal of Symbolic Computation","issn_l":"0747-7171","issn":["0747-7171","1095-855X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Symbolic Computation","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5110662559","display_name":"Xuan Zhao","orcid":null},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xu-an Zhao","raw_affiliation_strings":["Department of Mathematics, Beijing Normal University, Beijing 100875, China","Department of Mathematics,Beijing Normal University,Beijing 100875,China)"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Beijing Normal University, Beijing 100875, China","institution_ids":["https://openalex.org/I25254941"]},{"raw_affiliation_string":"Department of Mathematics,Beijing Normal University,Beijing 100875,China)","institution_ids":["https://openalex.org/I25254941"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041656322","display_name":"Hongzhu Gao","orcid":null},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Hongzhu Gao","raw_affiliation_strings":["Department of Mathematics, Beijing Normal University, Beijing 100875, China","Department of Mathematics,Beijing Normal University,Beijing 100875,China)"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Beijing Normal University, Beijing 100875, China","institution_ids":["https://openalex.org/I25254941"]},{"raw_affiliation_string":"Department of Mathematics,Beijing Normal University,Beijing 100875,China)","institution_ids":["https://openalex.org/I25254941"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006548929","display_name":"Xiaole Su","orcid":"https://orcid.org/0000-0001-8283-003X"},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaole Su","raw_affiliation_strings":["Department of Mathematics, Beijing Normal University, Beijing 100875, China","Department of Mathematics,Beijing Normal University,Beijing 100875,China)"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Beijing Normal University, Beijing 100875, China","institution_ids":["https://openalex.org/I25254941"]},{"raw_affiliation_string":"Department of Mathematics,Beijing Normal University,Beijing 100875,China)","institution_ids":["https://openalex.org/I25254941"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5041656322"],"corresponding_institution_ids":["https://openalex.org/I25254941"],"apc_list":{"value":2770,"currency":"USD","value_usd":2770},"apc_paid":null,"fwci":0.8781,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.72712202,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"39","issue":"6","first_page":"631","last_page":"642"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10304","display_name":"Geometric and Algebraic Topology","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2608","display_name":"Geometry and Topology"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10304","display_name":"Geometric and Algebraic Topology","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2608","display_name":"Geometry and Topology"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10896","display_name":"Homotopy and Cohomology in Algebraic Topology","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2610","display_name":"Mathematical Physics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10948","display_name":"Advanced Combinatorial Mathematics","score":0.9975000023841858,"subfield":{"id":"https://openalex.org/subfields/2607","display_name":"Discrete Mathematics and Combinatorics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.9040272235870361},{"id":"https://openalex.org/keywords/homotopy","display_name":"Homotopy","score":0.6272491216659546},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.44677379727363586},{"id":"https://openalex.org/keywords/homotopy-group","display_name":"Homotopy group","score":0.4217378795146942},{"id":"https://openalex.org/keywords/simply-connected-space","display_name":"Simply connected space","score":0.4193362891674042},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.3510194420814514},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.35006460547447205}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.9040272235870361},{"id":"https://openalex.org/C5961521","wikidata":"https://www.wikidata.org/wiki/Q746083","display_name":"Homotopy","level":2,"score":0.6272491216659546},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.44677379727363586},{"id":"https://openalex.org/C147688034","wikidata":"https://www.wikidata.org/wiki/Q1626416","display_name":"Homotopy group","level":3,"score":0.4217378795146942},{"id":"https://openalex.org/C167204820","wikidata":"https://www.wikidata.org/wiki/Q912058","display_name":"Simply connected space","level":2,"score":0.4193362891674042},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.3510194420814514},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.35006460547447205}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.jsc.2004.12.009","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.jsc.2004.12.009","pdf_url":null,"source":{"id":"https://openalex.org/S18904315","display_name":"Journal of Symbolic Computation","issn_l":"0747-7171","issn":["0747-7171","1095-855X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Symbolic Computation","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W337358633","https://openalex.org/W1541776832","https://openalex.org/W1974395958","https://openalex.org/W1974637169","https://openalex.org/W1990094763","https://openalex.org/W2012152743","https://openalex.org/W2038761261","https://openalex.org/W2052911947","https://openalex.org/W2065801231","https://openalex.org/W2073802257","https://openalex.org/W2321139110","https://openalex.org/W3140807473","https://openalex.org/W4206666514","https://openalex.org/W4298057406","https://openalex.org/W6611646095","https://openalex.org/W6644242451","https://openalex.org/W6653392843","https://openalex.org/W6813845087"],"related_works":["https://openalex.org/W4250769797","https://openalex.org/W1511021991","https://openalex.org/W4244574211","https://openalex.org/W4242991709","https://openalex.org/W1546274042","https://openalex.org/W4251794417","https://openalex.org/W635494559","https://openalex.org/W4297745602","https://openalex.org/W1541776832","https://openalex.org/W2553726976"],"abstract_inverted_index":null,"counts_by_year":[{"year":2014,"cited_by_count":1}],"updated_date":"2026-03-10T14:07:55.174380","created_date":"2025-10-10T00:00:00"}
