{"id":"https://openalex.org/W2123880758","doi":"https://doi.org/10.1007/s00373-008-0785-9","title":"Laplacian Spectrum of Weakly Quasi-threshold Graphs","display_name":"Laplacian Spectrum of Weakly Quasi-threshold Graphs","publication_year":2008,"publication_date":"2008-09-01","ids":{"openalex":"https://openalex.org/W2123880758","doi":"https://doi.org/10.1007/s00373-008-0785-9","mag":"2123880758"},"language":"en","primary_location":{"id":"doi:10.1007/s00373-008-0785-9","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00373-008-0785-9","pdf_url":null,"source":{"id":"https://openalex.org/S186126824","display_name":"Graphs and Combinatorics","issn_l":"0911-0119","issn":["0911-0119","1435-5914"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Graphs and Combinatorics","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/A5069547973","display_name":"R.B. Bapat","orcid":"https://orcid.org/0000-0002-1127-2912"},"institutions":[{"id":"https://openalex.org/I6498739","display_name":"Indian Statistical Institute","ror":"https://ror.org/00q2w1j53","country_code":"IN","type":"education","lineage":["https://openalex.org/I6498739"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"R. B. Bapat","raw_affiliation_strings":["Stat-Math Unit, Indian Statistical Institute Delhi, 7-SJSS Marg, New Delhi, 110 016, India","Indian Statistical Institute Delhi, Stat-Math Unit, 7-SJSS Marg, 110 016, New Delhi, India#TAB#"],"affiliations":[{"raw_affiliation_string":"Stat-Math Unit, Indian Statistical Institute Delhi, 7-SJSS Marg, New Delhi, 110 016, India","institution_ids":["https://openalex.org/I6498739"]},{"raw_affiliation_string":"Indian Statistical Institute Delhi, Stat-Math Unit, 7-SJSS Marg, 110 016, New Delhi, India#TAB#","institution_ids":["https://openalex.org/I6498739"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112004867","display_name":"A. K. Lal","orcid":null},"institutions":[{"id":"https://openalex.org/I94234084","display_name":"Indian Institute of Technology Kanpur","ror":"https://ror.org/05pjsgx75","country_code":"IN","type":"education","lineage":["https://openalex.org/I94234084"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"A. K. Lal","raw_affiliation_strings":["Indian Institute of Technology Kanpur, Kanpur, 208 016, India","Indian Institute of Technology Kanpur, 7-SJSS Marg, 208 016, Kanpur, India#TAB#"],"affiliations":[{"raw_affiliation_string":"Indian Institute of Technology Kanpur, Kanpur, 208 016, India","institution_ids":["https://openalex.org/I94234084"]},{"raw_affiliation_string":"Indian Institute of Technology Kanpur, 7-SJSS Marg, 208 016, Kanpur, India#TAB#","institution_ids":["https://openalex.org/I94234084"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5067185431","display_name":"Sukanta Pati","orcid":"https://orcid.org/0000-0002-8995-1894"},"institutions":[{"id":"https://openalex.org/I1317621060","display_name":"Indian Institute of Technology Guwahati","ror":"https://ror.org/0022nd079","country_code":"IN","type":"education","lineage":["https://openalex.org/I1317621060"]},{"id":"https://openalex.org/I64295750","display_name":"Indian Institute of Technology Indore","ror":"https://ror.org/01hhf7w52","country_code":"IN","type":"education","lineage":["https://openalex.org/I64295750"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Sukanta Pati","raw_affiliation_strings":["Department of Mathematics, Indian Institute of Technology, Guwahati, India","Indian Institute of Technology, Department of Mathematics, 7-SJSS Marg, 208 016, Guwahati, India#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Indian Institute of Technology, Guwahati, India","institution_ids":["https://openalex.org/I1317621060"]},{"raw_affiliation_string":"Indian Institute of Technology, Department of Mathematics, 7-SJSS Marg, 208 016, Guwahati, India#TAB#","institution_ids":["https://openalex.org/I64295750"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5069547973"],"corresponding_institution_ids":["https://openalex.org/I6498739"],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":2.2393,"has_fulltext":false,"cited_by_count":17,"citation_normalized_percentile":{"value":0.87202866,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"24","issue":"4","first_page":"273","last_page":"290"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11476","display_name":"Graph theory and applications","score":1.0,"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/T11476","display_name":"Graph theory and applications","score":1.0,"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/T12536","display_name":"Topological and Geometric Data Analysis","score":0.9980999827384949,"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":0.9965999722480774,"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/combinatorics","display_name":"Combinatorics","score":0.8151198625564575},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.7847360968589783},{"id":"https://openalex.org/keywords/cograph","display_name":"Cograph","score":0.585762619972229},{"id":"https://openalex.org/keywords/chordal-graph","display_name":"Chordal graph","score":0.5649211406707764},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.5212662816047668},{"id":"https://openalex.org/keywords/indifference-graph","display_name":"Indifference graph","score":0.5004780292510986},{"id":"https://openalex.org/keywords/1-planar-graph","display_name":"1-planar graph","score":0.48418834805488586},{"id":"https://openalex.org/keywords/maximal-independent-set","display_name":"Maximal independent set","score":0.4749470055103302},{"id":"https://openalex.org/keywords/vertex","display_name":"Vertex (graph theory)","score":0.470737099647522},{"id":"https://openalex.org/keywords/split-graph","display_name":"Split graph","score":0.43421176075935364},{"id":"https://openalex.org/keywords/corollary","display_name":"Corollary","score":0.4246535897254944},{"id":"https://openalex.org/keywords/pathwidth","display_name":"Pathwidth","score":0.4169422388076782},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.2395532727241516},{"id":"https://openalex.org/keywords/line-graph","display_name":"Line graph","score":0.18850061297416687}],"concepts":[{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.8151198625564575},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7847360968589783},{"id":"https://openalex.org/C59824394","wikidata":"https://www.wikidata.org/wiki/Q5141281","display_name":"Cograph","level":5,"score":0.585762619972229},{"id":"https://openalex.org/C160446614","wikidata":"https://www.wikidata.org/wiki/Q1322892","display_name":"Chordal graph","level":3,"score":0.5649211406707764},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.5212662816047668},{"id":"https://openalex.org/C74133993","wikidata":"https://www.wikidata.org/wiki/Q3115472","display_name":"Indifference graph","level":3,"score":0.5004780292510986},{"id":"https://openalex.org/C102192266","wikidata":"https://www.wikidata.org/wiki/Q4545823","display_name":"1-planar graph","level":4,"score":0.48418834805488586},{"id":"https://openalex.org/C18359143","wikidata":"https://www.wikidata.org/wiki/Q7888149","display_name":"Maximal independent set","level":5,"score":0.4749470055103302},{"id":"https://openalex.org/C80899671","wikidata":"https://www.wikidata.org/wiki/Q1304193","display_name":"Vertex (graph theory)","level":3,"score":0.470737099647522},{"id":"https://openalex.org/C8554925","wikidata":"https://www.wikidata.org/wiki/Q3893853","display_name":"Split graph","level":5,"score":0.43421176075935364},{"id":"https://openalex.org/C2780012671","wikidata":"https://www.wikidata.org/wiki/Q1343870","display_name":"Corollary","level":2,"score":0.4246535897254944},{"id":"https://openalex.org/C43517604","wikidata":"https://www.wikidata.org/wiki/Q7144893","display_name":"Pathwidth","level":4,"score":0.4169422388076782},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.2395532727241516},{"id":"https://openalex.org/C203776342","wikidata":"https://www.wikidata.org/wiki/Q1378376","display_name":"Line graph","level":3,"score":0.18850061297416687}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/s00373-008-0785-9","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00373-008-0785-9","pdf_url":null,"source":{"id":"https://openalex.org/S186126824","display_name":"Graphs and Combinatorics","issn_l":"0911-0119","issn":["0911-0119","1435-5914"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Graphs and Combinatorics","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.418.9730","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.418.9730","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.isid.ac.in/~rbb/lalpati3.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Life in Land","id":"https://metadata.un.org/sdg/15","score":0.6299999952316284}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1579049696","https://openalex.org/W1587744656","https://openalex.org/W1589331344","https://openalex.org/W1987430956","https://openalex.org/W1997098503","https://openalex.org/W2006309149","https://openalex.org/W2008194408","https://openalex.org/W2011099024","https://openalex.org/W2015906942","https://openalex.org/W2027734096","https://openalex.org/W2043963103","https://openalex.org/W2051576576","https://openalex.org/W2123488028","https://openalex.org/W2144267444","https://openalex.org/W2151417892","https://openalex.org/W2799004609","https://openalex.org/W4213214460"],"related_works":["https://openalex.org/W1977862280","https://openalex.org/W4226049246","https://openalex.org/W3130332934","https://openalex.org/W2031276298","https://openalex.org/W2898526288","https://openalex.org/W2061237693","https://openalex.org/W2083238533","https://openalex.org/W2607123191","https://openalex.org/W2042018534","https://openalex.org/W2045381948"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":3},{"year":2017,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}