乐胖代购免代理版

{"id":"https://openalex.org/W1996066028","doi":"https://doi.org/10.1002/jgt.3190130409","title":"Circumference and girth","display_name":"Circumference and girth","publication_year":1989,"publication_date":"1989-09-01","ids":{"openalex":"https://openalex.org/W1996066028","doi":"https://doi.org/10.1002/jgt.3190130409","mag":"1996066028"},"language":"en","primary_location":{"is_oa":false,"landing_page_url":"https://doi.org/10.1002/jgt.3190130409","pdf_url":null,"source":{"id":"https://openalex.org/S193368155","display_name":"Journal of Graph Theory","issn_l":"0364-9024","issn":["0364-9024","1097-0118"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false},"type":"article","type_crossref":"journal-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/A5064703404","display_name":"Cun\u2010Quan Zhang","orcid":"https://orcid.org/0000-0001-5583-4481"},"institutions":[{"id":"https://openalex.org/I12097938","display_name":"West Virginia University","ror":"https://ror.org/011vxgd24","country_code":"US","type":"education","lineage":["https://openalex.org/I12097938"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Cun\u2010Quan Zhang","raw_affiliation_strings":["DEPARTMENT OF MATHEMATICS; WEST VIRGINIA UNIVERSITY; MORGANTOWN WEST VIRGINIA"],"affiliations":[{"raw_affiliation_string":"DEPARTMENT OF MATHEMATICS; WEST VIRGINIA UNIVERSITY; MORGANTOWN WEST VIRGINIA","institution_ids":["https://openalex.org/I12097938"]}]}],"institution_assertions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5064703404"],"corresponding_institution_ids":["https://openalex.org/I12097938"],"apc_list":{"value":3760,"currency":"USD","value_usd":3760,"provenance":"doaj"},"apc_paid":null,"fwci":0.0,"has_fulltext":true,"fulltext_origin":"ngrams","cited_by_count":8,"citation_normalized_percentile":{"value":0.659851,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":76,"max":78},"biblio":{"volume":"13","issue":"4","first_page":"485","last_page":"490"},"is_retracted":false,"is_paratext":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9999,"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"}},"topics":[{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9999,"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/T11329","display_name":"Limits and Structures in Graph Theory","score":0.9999,"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"}},{"id":"https://openalex.org/T10849","display_name":"Finite Group Theory Research","score":0.9993,"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/circumference","display_name":"Circumference","score":0.68428916},{"id":"https://openalex.org/keywords/girth","display_name":"Girth (graph theory)","score":0.6551352}],"concepts":[{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.8585601},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.84200144},{"id":"https://openalex.org/C166504685","wikidata":"https://www.wikidata.org/wiki/Q843905","display_name":"Circumference","level":2,"score":0.68428916},{"id":"https://openalex.org/C2777434295","wikidata":"https://www.wikidata.org/wiki/Q959831","display_name":"Girth (graph theory)","level":2,"score":0.6551352},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.4895078},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0782423}],"mesh":[],"locations_count":1,"locations":[{"is_oa":false,"landing_page_url":"https://doi.org/10.1002/jgt.3190130409","pdf_url":null,"source":{"id":"https://openalex.org/S193368155","display_name":"Journal of Graph Theory","issn_l":"0364-9024","issn":["0364-9024","1097-0118"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false}],"best_oa_location":null,"sustainable_development_goals":[],"grants":[],"datasets":[],"versions":[],"referenced_works_count":8,"referenced_works":["https://openalex.org/W142473699","https://openalex.org/W1510730180","https://openalex.org/W1964971904","https://openalex.org/W1970713987","https://openalex.org/W1971367602","https://openalex.org/W2076769102","https://openalex.org/W2084408260","https://openalex.org/W2125732536"],"related_works":["https://openalex.org/W4245490552","https://openalex.org/W4225152035","https://openalex.org/W3002753104","https://openalex.org/W2377220728","https://openalex.org/W2372547260","https://openalex.org/W2061531152","https://openalex.org/W2016653919","https://openalex.org/W2007980826","https://openalex.org/W1994379433","https://openalex.org/W1979597421"],"abstract_inverted_index":{"Abstract":[0],"Let":[1],"G":[2,20,57],"be":[3],"2\u2010connected":[4],"graph":[5],"with":[6],"girth":[7],"g":[8,34,40,46,65,74],"and":[9,49],"minimum":[10],"degree":[11],"d":[12,31,37,62,71],".":[13],"Then":[14],"each":[15],"pair":[16],"of":[17,19,26,52,56],"vertices":[18],"is":[21,58],"joined":[22],"by":[23],"a":[24,53],"path":[25],"length":[27,51],"at":[28,59],"least":[29,60],"max{1/2(":[30],"\u2212":[32,38,41,63,66,72,75],"1)":[33],",":[35],"(":[36],"3/2)(":[39],"4)":[42,76],"+":[43,68,77],"2}":[44],"if":[45],"\u2a7e":[47],"4,":[48],"the":[50],"longest":[54],"cycle":[55],"max{[(":[61],"1)(":[64],"2)":[67],"2],":[69],"[(2":[70],"3)(":[73],"4]}.":[78]},"cited_by_api_url":"https://api.openalex.org/works?filter=cites:W1996066028","counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2024-12-12T22:43:39.378719","created_date":"2016-06-24"}