{"id":"https://openalex.org/W2009885151","doi":"https://doi.org/10.1016/s0040-9383(98)00070-6","title":"Tunnel number, connected sum and meridional essential surfaces","display_name":"Tunnel number, connected sum and meridional essential surfaces","publication_year":2000,"publication_date":"2000-05-01","ids":{"openalex":"https://openalex.org/W2009885151","doi":"https://doi.org/10.1016/s0040-9383(98)00070-6","mag":"2009885151"},"language":"en","primary_location":{"id":"doi:10.1016/s0040-9383(98)00070-6","doi":"https://doi.org/10.1016/s0040-9383(98)00070-6","is_oa":true,"landing_page_url":"https://doi.org/10.1016/s0040-9383(98)00070-6","pdf_url":"https://www.sciencedirect.com/science/article/pii/S0040938398000706/pdf","source":{"id":"https://openalex.org/S143014084","display_name":"Topology","issn_l":"0040-9383","issn":["0040-9383","1879-3215"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","jufo-1"],"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":"Topology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://www.sciencedirect.com/science/article/pii/S0040938398000706/pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5032064818","display_name":"Kanji Morimoto","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I7377986","display_name":"Takushoku University","ror":"https://ror.org/05qh38f12","country_code":"JP","type":"education","lineage":["https://openalex.org/I7377986"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Kanji Morimoto","raw_affiliation_strings":["Department of Mathematics, Takushoku University, Tatemachi, Hachioji, Tokyo 193, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Takushoku University, Tatemachi, Hachioji, Tokyo 193, Japan","institution_ids":["https://openalex.org/I7377986"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5032064818"],"corresponding_institution_ids":["https://openalex.org/I7377986"],"apc_list":null,"apc_paid":null,"fwci":4.2349,"has_fulltext":true,"cited_by_count":26,"citation_normalized_percentile":{"value":0.94014929,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":95},"biblio":{"volume":"39","issue":"3","first_page":"469","last_page":"485"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10304","display_name":"Geometric and Algebraic Topology","score":0.9994999766349792,"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":0.9994999766349792,"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/T10374","display_name":"Advanced Graph Theory Research","score":0.0,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10229","display_name":"Geometric Analysis and Curvature Flows","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"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/tunnel-number","display_name":"tunnel number","score":0.9819999933242798},{"id":"https://openalex.org/keywords/connected-sum","display_name":"connected sum","score":0.8019999861717224},{"id":"https://openalex.org/keywords/knot-exteriors","display_name":"knot exteriors","score":0.9340000152587891}],"concepts":[{"id":"https://openalex.org/C123010829","wikidata":"https://www.wikidata.org/wiki/Q2381018","display_name":"Zonal and meridional","level":2,"score":0.8010510802268982},{"id":"https://openalex.org/C50955798","wikidata":"https://www.wikidata.org/wiki/Q1890389","display_name":"Connected sum","level":3,"score":0.7939280271530151},{"id":"https://openalex.org/C99460904","wikidata":"https://www.wikidata.org/wiki/Q2470499","display_name":"Lens space","level":2,"score":0.791221022605896},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.79087233543396},{"id":"https://openalex.org/C2779863119","wikidata":"https://www.wikidata.org/wiki/Q6423048","display_name":"Knot (papermaking)","level":2,"score":0.6595824956893921},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.5832608342170715},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.47598519921302795},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.3657749891281128},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.3457219898700714},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1816897690296173},{"id":"https://openalex.org/C167204820","wikidata":"https://www.wikidata.org/wiki/Q912058","display_name":"Simply connected space","level":2,"score":0.15094953775405884},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.09186774492263794},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.06356513500213623},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.058557868003845215},{"id":"https://openalex.org/C91586092","wikidata":"https://www.wikidata.org/wiki/Q757520","display_name":"Atmospheric sciences","level":1,"score":0.05687102675437927},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0040-9383(98)00070-6","doi":"https://doi.org/10.1016/s0040-9383(98)00070-6","is_oa":true,"landing_page_url":"https://doi.org/10.1016/s0040-9383(98)00070-6","pdf_url":"https://www.sciencedirect.com/science/article/pii/S0040938398000706/pdf","source":{"id":"https://openalex.org/S143014084","display_name":"Topology","issn_l":"0040-9383","issn":["0040-9383","1879-3215"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","jufo-1"],"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":"Topology","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1016/s0040-9383(98)00070-6","doi":"https://doi.org/10.1016/s0040-9383(98)00070-6","is_oa":true,"landing_page_url":"https://doi.org/10.1016/s0040-9383(98)00070-6","pdf_url":"https://www.sciencedirect.com/science/article/pii/S0040938398000706/pdf","source":{"id":"https://openalex.org/S143014084","display_name":"Topology","issn_l":"0040-9383","issn":["0040-9383","1879-3215"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","jufo-1"],"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":"Topology","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2009885151.pdf","grobid_xml":"https://content.openalex.org/works/W2009885151.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W1732984409","https://openalex.org/W2042357787","https://openalex.org/W2034643573","https://openalex.org/W1990099488","https://openalex.org/W1956077758","https://openalex.org/W2951617455","https://openalex.org/W2066266463","https://openalex.org/W1754984884","https://openalex.org/W7223260756","https://openalex.org/W1987728670"],"abstract_inverted_index":null,"counts_by_year":[{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2013,"cited_by_count":2}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
