{"id":"https://openalex.org/W1511737926","doi":"https://doi.org/10.1007/978-3-642-11409-0_21","title":"Hardness Results and Efficient Algorithms for Graph Powers","display_name":"Hardness Results and Efficient Algorithms for Graph Powers","publication_year":2009,"publication_date":"2009-12-03","ids":{"openalex":"https://openalex.org/W1511737926","doi":"https://doi.org/10.1007/978-3-642-11409-0_21","mag":"1511737926"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-642-11409-0_21","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-11409-0_21","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/A5072055012","display_name":"Van Bang L\u00ea","orcid":"https://orcid.org/0000-0002-3303-8326"},"institutions":[{"id":"https://openalex.org/I4665924","display_name":"University of Rostock","ror":"https://ror.org/03zdwsf69","country_code":"DE","type":"education","lineage":["https://openalex.org/I4665924"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Van Bang Le","raw_affiliation_strings":["Institut f\u00fcr Informatik, Universit\u00e4t Rostock, D-18051, Rostock, Germany"],"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Informatik, Universit\u00e4t Rostock, D-18051, Rostock, Germany","institution_ids":["https://openalex.org/I4665924"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5083153824","display_name":"Ngoc Tuy Nguyen","orcid":null},"institutions":[{"id":"https://openalex.org/I4210159515","display_name":"H\u1ed3ng \u0110\u1ee9c University","ror":"https://ror.org/05dp8mg49","country_code":"VN","type":"education","lineage":["https://openalex.org/I4210159515"]},{"id":"https://openalex.org/I4665924","display_name":"University of Rostock","ror":"https://ror.org/03zdwsf69","country_code":"DE","type":"education","lineage":["https://openalex.org/I4665924"]}],"countries":["DE","VN"],"is_corresponding":false,"raw_author_name":"Ngoc Tuy Nguyen","raw_affiliation_strings":["Hong Duc University, Thanh Hoa, Vietnam","Institut f\u00fcr Informatik, Universit\u00e4t Rostock, D-18051, Rostock, Germany"],"affiliations":[{"raw_affiliation_string":"Hong Duc University, Thanh Hoa, Vietnam","institution_ids":["https://openalex.org/I4210159515"]},{"raw_affiliation_string":"Institut f\u00fcr Informatik, Universit\u00e4t Rostock, D-18051, Rostock, Germany","institution_ids":["https://openalex.org/I4665924"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5072055012"],"corresponding_institution_ids":["https://openalex.org/I4665924"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":0.9775,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.76093234,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"238","last_page":"249"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9998999834060669,"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":0.9998999834060669,"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/T10829","display_name":"Interconnection Networks and Systems","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9991000294685364,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/chordal-graph","display_name":"Chordal graph","score":0.8499137759208679},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.8023023009300232},{"id":"https://openalex.org/keywords/bipartite-graph","display_name":"Bipartite graph","score":0.7649583220481873},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5862550139427185},{"id":"https://openalex.org/keywords/interval-graph","display_name":"Interval graph","score":0.5843073129653931},{"id":"https://openalex.org/keywords/conjecture","display_name":"Conjecture","score":0.5517251491546631},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.5087915062904358},{"id":"https://openalex.org/keywords/split-graph","display_name":"Split graph","score":0.46032893657684326},{"id":"https://openalex.org/keywords/pathwidth","display_name":"Pathwidth","score":0.4595457911491394},{"id":"https://openalex.org/keywords/tanner-graph","display_name":"Tanner graph","score":0.4517074525356293},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.4052526652812958},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3069925010204315},{"id":"https://openalex.org/keywords/1-planar-graph","display_name":"1-planar graph","score":0.24123027920722961},{"id":"https://openalex.org/keywords/line-graph","display_name":"Line graph","score":0.17010372877120972},{"id":"https://openalex.org/keywords/low-density-parity-check-code","display_name":"Low-density parity-check code","score":0.10656717419624329}],"concepts":[{"id":"https://openalex.org/C160446614","wikidata":"https://www.wikidata.org/wiki/Q1322892","display_name":"Chordal graph","level":3,"score":0.8499137759208679},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.8023023009300232},{"id":"https://openalex.org/C197657726","wikidata":"https://www.wikidata.org/wiki/Q174733","display_name":"Bipartite graph","level":3,"score":0.7649583220481873},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5862550139427185},{"id":"https://openalex.org/C67810366","wikidata":"https://www.wikidata.org/wiki/Q835942","display_name":"Interval graph","level":5,"score":0.5843073129653931},{"id":"https://openalex.org/C2780990831","wikidata":"https://www.wikidata.org/wiki/Q319141","display_name":"Conjecture","level":2,"score":0.5517251491546631},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.5087915062904358},{"id":"https://openalex.org/C8554925","wikidata":"https://www.wikidata.org/wiki/Q3893853","display_name":"Split graph","level":5,"score":0.46032893657684326},{"id":"https://openalex.org/C43517604","wikidata":"https://www.wikidata.org/wiki/Q7144893","display_name":"Pathwidth","level":4,"score":0.4595457911491394},{"id":"https://openalex.org/C87117866","wikidata":"https://www.wikidata.org/wiki/Q7683664","display_name":"Tanner graph","level":5,"score":0.4517074525356293},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.4052526652812958},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3069925010204315},{"id":"https://openalex.org/C102192266","wikidata":"https://www.wikidata.org/wiki/Q4545823","display_name":"1-planar graph","level":4,"score":0.24123027920722961},{"id":"https://openalex.org/C203776342","wikidata":"https://www.wikidata.org/wiki/Q1378376","display_name":"Line graph","level":3,"score":0.17010372877120972},{"id":"https://openalex.org/C67692717","wikidata":"https://www.wikidata.org/wiki/Q187444","display_name":"Low-density parity-check code","level":3,"score":0.10656717419624329},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.0},{"id":"https://openalex.org/C46462455","wikidata":"https://www.wikidata.org/wiki/Q5395712","display_name":"Error floor","level":4,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/978-3-642-11409-0_21","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-11409-0_21","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"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.157.4353","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.157.4353","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.informatik.uni-rostock.de/~le/Research/wg2009.pdf","raw_type":"text"}],"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/W639947448","https://openalex.org/W1711880449","https://openalex.org/W1851204491","https://openalex.org/W1968148694","https://openalex.org/W1979545228","https://openalex.org/W1987143101","https://openalex.org/W1991858502","https://openalex.org/W2011039300","https://openalex.org/W2058105885","https://openalex.org/W2068361557","https://openalex.org/W2068718955","https://openalex.org/W2084535093","https://openalex.org/W2089417393","https://openalex.org/W2143474538","https://openalex.org/W2484546394","https://openalex.org/W2912101389","https://openalex.org/W4285719527","https://openalex.org/W4299866835"],"related_works":["https://openalex.org/W2788975631","https://openalex.org/W2963009577","https://openalex.org/W2903402681","https://openalex.org/W1987143101","https://openalex.org/W2251679127","https://openalex.org/W4385327816","https://openalex.org/W2157783000","https://openalex.org/W2407722793","https://openalex.org/W2949743119","https://openalex.org/W2091612923"],"abstract_inverted_index":null,"counts_by_year":[{"year":2020,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}