{"id":"https://openalex.org/W2093508305","doi":"https://doi.org/10.1007/bf01581198","title":"Tight integral duality gap in the Chinese Postman problem","display_name":"Tight integral duality gap in the Chinese Postman problem","publication_year":1992,"publication_date":"1992-04-01","ids":{"openalex":"https://openalex.org/W2093508305","doi":"https://doi.org/10.1007/bf01581198","mag":"2093508305"},"language":"en","primary_location":{"id":"doi:10.1007/bf01581198","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01581198","pdf_url":null,"source":{"id":"https://openalex.org/S193920097","display_name":"Mathematical Programming","issn_l":"0025-5610","issn":["0025-5610","1436-4646"],"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":"Mathematical Programming","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/A5074054097","display_name":"Ephraim Korach","orcid":null},"institutions":[{"id":"https://openalex.org/I174306211","display_name":"Technion \u2013 Israel Institute of Technology","ror":"https://ror.org/03qryx823","country_code":"IL","type":"education","lineage":["https://openalex.org/I174306211"]}],"countries":["IL"],"is_corresponding":true,"raw_author_name":"Ephraim Korach","raw_affiliation_strings":["Computer Science Department, Technion \u2014 Israel Institute of Technology, Haifa, Israel","Computer Sci. Dept., Technion - Israel Inst. of Tech., Haifa, Israel#TAB#"],"affiliations":[{"raw_affiliation_string":"Computer Science Department, Technion \u2014 Israel Institute of Technology, Haifa, Israel","institution_ids":["https://openalex.org/I174306211"]},{"raw_affiliation_string":"Computer Sci. Dept., Technion - Israel Inst. of Tech., Haifa, Israel#TAB#","institution_ids":["https://openalex.org/I174306211"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5089298904","display_name":"Michal Penn","orcid":null},"institutions":[{"id":"https://openalex.org/I174306211","display_name":"Technion \u2013 Israel Institute of Technology","ror":"https://ror.org/03qryx823","country_code":"IL","type":"education","lineage":["https://openalex.org/I174306211"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Michal Penn","raw_affiliation_strings":["Faculty of Industrial and Management Engineering, Technion \u2014 Israel Institute of Technology, Haifa, Israel","Faculty of Industrial and Management Engineering Technion \u2014 Israel Institute of Technology, Haifa, Israel"],"affiliations":[{"raw_affiliation_string":"Faculty of Industrial and Management Engineering, Technion \u2014 Israel Institute of Technology, Haifa, Israel","institution_ids":["https://openalex.org/I174306211"]},{"raw_affiliation_string":"Faculty of Industrial and Management Engineering Technion \u2014 Israel Institute of Technology, Haifa, Israel","institution_ids":["https://openalex.org/I174306211"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5074054097"],"corresponding_institution_ids":["https://openalex.org/I174306211"],"apc_list":{"value":2190,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":3.8374,"has_fulltext":false,"cited_by_count":22,"citation_normalized_percentile":{"value":0.94207611,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":93,"max":96},"biblio":{"volume":"55","issue":"1-3","first_page":"183","last_page":"191"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9994999766349792,"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":0.9994999766349792,"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.996399998664856,"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/T10567","display_name":"Vehicle Routing Optimization Methods","score":0.9929999709129333,"subfield":{"id":"https://openalex.org/subfields/2209","display_name":"Industrial and Manufacturing Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.8757855892181396},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.7281514406204224},{"id":"https://openalex.org/keywords/join","display_name":"Join (topology)","score":0.699159562587738},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.46839141845703125},{"id":"https://openalex.org/keywords/minimum-weight","display_name":"Minimum weight","score":0.45527711510658264},{"id":"https://openalex.org/keywords/duality","display_name":"Duality (order theory)","score":0.42405977845191956},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.4129575788974762}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8757855892181396},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.7281514406204224},{"id":"https://openalex.org/C2776124973","wikidata":"https://www.wikidata.org/wiki/Q3183033","display_name":"Join (topology)","level":2,"score":0.699159562587738},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.46839141845703125},{"id":"https://openalex.org/C2778945305","wikidata":"https://www.wikidata.org/wiki/Q6865502","display_name":"Minimum weight","level":2,"score":0.45527711510658264},{"id":"https://openalex.org/C2778023678","wikidata":"https://www.wikidata.org/wiki/Q554403","display_name":"Duality (order theory)","level":2,"score":0.42405977845191956},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.4129575788974762}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/bf01581198","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01581198","pdf_url":null,"source":{"id":"https://openalex.org/S193920097","display_name":"Mathematical Programming","issn_l":"0025-5610","issn":["0025-5610","1436-4646"],"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":"Mathematical Programming","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/10","score":0.5699999928474426,"display_name":"Reduced inequalities"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W136000211","https://openalex.org/W1484040084","https://openalex.org/W1843974934","https://openalex.org/W1981295749","https://openalex.org/W1985284097","https://openalex.org/W2003160050","https://openalex.org/W2028436310","https://openalex.org/W2064284095","https://openalex.org/W2065754663","https://openalex.org/W2093508305","https://openalex.org/W2136481365","https://openalex.org/W3034528871","https://openalex.org/W7027562081"],"related_works":["https://openalex.org/W4205996836","https://openalex.org/W3214148052","https://openalex.org/W2151692181","https://openalex.org/W2093960938","https://openalex.org/W2807741550","https://openalex.org/W794462722","https://openalex.org/W2029625042","https://openalex.org/W4248476017","https://openalex.org/W2964879389","https://openalex.org/W2970426051"],"abstract_inverted_index":null,"counts_by_year":[{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}