{"id":"https://openalex.org/W1576450648","doi":"https://doi.org/10.1007/3-540-53487-3_45","title":"Optimal parallel algorithms for testing isomorphism of trees and outerplanar graphs","display_name":"Optimal parallel algorithms for testing isomorphism of trees and outerplanar graphs","publication_year":1990,"publication_date":"1990-01-01","ids":{"openalex":"https://openalex.org/W1576450648","doi":"https://doi.org/10.1007/3-540-53487-3_45","mag":"1576450648"},"language":"en","primary_location":{"id":"doi:10.1007/3-540-53487-3_45","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-53487-3_45","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"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":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"book-chapter","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/A5005407145","display_name":"Christos Levcopoulos","orcid":"https://orcid.org/0000-0003-0983-7862"},"institutions":[{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":true,"raw_author_name":"Christos Levcopoulos","raw_affiliation_strings":["Dept. of Computer Science, Lund University, Box 118, S-221 00, Lund, Sweden","Lund Univ.#TAB#"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, Lund University, Box 118, S-221 00, Lund, Sweden","institution_ids":["https://openalex.org/I187531555"]},{"raw_affiliation_string":"Lund Univ.#TAB#","institution_ids":["https://openalex.org/I187531555"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016509031","display_name":"Andrzej Lingas","orcid":"https://orcid.org/0000-0003-4998-9844"},"institutions":[{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Andrzej Lingas","raw_affiliation_strings":["Dept. of Computer Science, Lund University, Box 118, S-221 00, Lund, Sweden","Lund Univ.#TAB#"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, Lund University, Box 118, S-221 00, Lund, Sweden","institution_ids":["https://openalex.org/I187531555"]},{"raw_affiliation_string":"Lund Univ.#TAB#","institution_ids":["https://openalex.org/I187531555"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046472274","display_name":"Ola Petersson","orcid":null},"institutions":[{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Ola Petersson","raw_affiliation_strings":["Dept. of Computer Science, Lund University, Box 118, S-221 00, Lund, Sweden","Lund Univ.#TAB#"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, Lund University, Box 118, S-221 00, Lund, Sweden","institution_ids":["https://openalex.org/I187531555"]},{"raw_affiliation_string":"Lund Univ.#TAB#","institution_ids":["https://openalex.org/I187531555"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5079957387","display_name":"Wojciech Rytter","orcid":"https://orcid.org/0000-0002-9162-6724"},"institutions":[{"id":"https://openalex.org/I4654613","display_name":"University of Warsaw","ror":"https://ror.org/039bjqg32","country_code":"PL","type":"education","lineage":["https://openalex.org/I4654613"]}],"countries":["PL"],"is_corresponding":false,"raw_author_name":"Wojciech Rytter","raw_affiliation_strings":["Warsaw University, Institute of Informatics, PKiN, 00-901, Warsaw, Poland","Warsaw University Institute of Informatics"],"affiliations":[{"raw_affiliation_string":"Warsaw University, Institute of Informatics, PKiN, 00-901, Warsaw, Poland","institution_ids":["https://openalex.org/I4654613"]},{"raw_affiliation_string":"Warsaw University Institute of Informatics","institution_ids":["https://openalex.org/I4654613"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5005407145"],"corresponding_institution_ids":["https://openalex.org/I187531555"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":0.5837,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.69509866,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"204","last_page":"214"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9980000257492065,"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9980000257492065,"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/T11269","display_name":"Algorithms and Data Compression","score":0.9979000091552734,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10743","display_name":"Software Testing and Debugging Techniques","score":0.9944000244140625,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/isomorphism","display_name":"Isomorphism (crystallography)","score":0.6800481081008911},{"id":"https://openalex.org/keywords/parallel-algorithm","display_name":"Parallel algorithm","score":0.5984950661659241},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.57899409532547},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.5383715629577637},{"id":"https://openalex.org/keywords/equivalence","display_name":"Equivalence (formal languages)","score":0.527698278427124},{"id":"https://openalex.org/keywords/graph-isomorphism","display_name":"Graph isomorphism","score":0.518511176109314},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.4523818790912628},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.44484972953796387},{"id":"https://openalex.org/keywords/binary-logarithm","display_name":"Binary logarithm","score":0.436160683631897},{"id":"https://openalex.org/keywords/pathwidth","display_name":"Pathwidth","score":0.42654505372047424},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.376213937997818},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.18228372931480408},{"id":"https://openalex.org/keywords/line-graph","display_name":"Line graph","score":0.05947291851043701}],"concepts":[{"id":"https://openalex.org/C203436722","wikidata":"https://www.wikidata.org/wiki/Q902950","display_name":"Isomorphism (crystallography)","level":3,"score":0.6800481081008911},{"id":"https://openalex.org/C120373497","wikidata":"https://www.wikidata.org/wiki/Q1087987","display_name":"Parallel algorithm","level":2,"score":0.5984950661659241},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.57899409532547},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.5383715629577637},{"id":"https://openalex.org/C2780069185","wikidata":"https://www.wikidata.org/wiki/Q7977945","display_name":"Equivalence (formal languages)","level":2,"score":0.527698278427124},{"id":"https://openalex.org/C61665672","wikidata":"https://www.wikidata.org/wiki/Q303100","display_name":"Graph isomorphism","level":4,"score":0.518511176109314},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.4523818790912628},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.44484972953796387},{"id":"https://openalex.org/C63553672","wikidata":"https://www.wikidata.org/wiki/Q581168","display_name":"Binary logarithm","level":2,"score":0.436160683631897},{"id":"https://openalex.org/C43517604","wikidata":"https://www.wikidata.org/wiki/Q7144893","display_name":"Pathwidth","level":4,"score":0.42654505372047424},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.376213937997818},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.18228372931480408},{"id":"https://openalex.org/C203776342","wikidata":"https://www.wikidata.org/wiki/Q1378376","display_name":"Line graph","level":3,"score":0.05947291851043701},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C115624301","wikidata":"https://www.wikidata.org/wiki/Q895901","display_name":"Crystal structure","level":2,"score":0.0},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/3-540-53487-3_45","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-53487-3_45","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"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":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1480459784","https://openalex.org/W1515854346","https://openalex.org/W1556104144","https://openalex.org/W1572450595","https://openalex.org/W1588770100","https://openalex.org/W1655990431","https://openalex.org/W1965874601","https://openalex.org/W1974672137","https://openalex.org/W1995040285","https://openalex.org/W2013444956","https://openalex.org/W2015439916","https://openalex.org/W2027501230","https://openalex.org/W2039474822","https://openalex.org/W2045160990","https://openalex.org/W2072442084","https://openalex.org/W2149410722","https://openalex.org/W6637190722"],"related_works":["https://openalex.org/W1258892498","https://openalex.org/W4360838296","https://openalex.org/W2187958446","https://openalex.org/W3080158623","https://openalex.org/W2389075355","https://openalex.org/W2041670454","https://openalex.org/W2183579781","https://openalex.org/W1522618089","https://openalex.org/W1991889083","https://openalex.org/W2153879854"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}