{"id":"https://openalex.org/W7138892635","doi":"https://doi.org/10.1016/j.dam.2026.02.049","title":"Crossing-free monochromatic trees for bicolored point sets","display_name":"Crossing-free monochromatic trees for bicolored point sets","publication_year":2026,"publication_date":"2026-03-18","ids":{"openalex":"https://openalex.org/W7138892635","doi":"https://doi.org/10.1016/j.dam.2026.02.049"},"language":"en","primary_location":{"id":"doi:10.1016/j.dam.2026.02.049","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.dam.2026.02.049","pdf_url":null,"source":{"id":"https://openalex.org/S171741597","display_name":"Discrete Applied Mathematics","issn_l":"0166-218X","issn":["0166-218X","1872-6771"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Discrete Applied Mathematics","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/A5043388541","display_name":"Jos\u00e9 Fern\u00e1ndez Goycoolea","orcid":null},"institutions":[{"id":"https://openalex.org/I63471342","display_name":"Universidad de Magallanes","ror":"https://ror.org/049784n50","country_code":"CL","type":"education","lineage":["https://openalex.org/I63471342"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Jos\u00e9 Fern\u00e1ndez Goycoolea","raw_affiliation_strings":["Departamento de Matem\u00e1tica y F\u00edsica, Universidad de Magallanes, Avenida Bulnes 01855, Punta Arenas, Chile"],"raw_orcid":"https://orcid.org/0000-0001-5349-4348","affiliations":[{"raw_affiliation_string":"Departamento de Matem\u00e1tica y F\u00edsica, Universidad de Magallanes, Avenida Bulnes 01855, Punta Arenas, Chile","institution_ids":["https://openalex.org/I63471342"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073598233","display_name":"Luis H. Herrera","orcid":null},"institutions":[{"id":"https://openalex.org/I4210144223","display_name":"Metropolitan University of Technology","ror":"https://ror.org/04bpsn575","country_code":"CL","type":"education","lineage":["https://openalex.org/I4210144223"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Luis H. Herrera","raw_affiliation_strings":["Departamento de Inform\u00e1tica y Computaci\u00f3n, Universidad Tecnol\u00f3gica Metropolitana, Jos\u00e9 Pedro Alessandri 1242, \u00d1u\u00f1oa, Santiago de Chile 7800002, Regi\u00f3n Metropolitana, Chile"],"raw_orcid":"https://orcid.org/0000-0001-7338-7611","affiliations":[{"raw_affiliation_string":"Departamento de Inform\u00e1tica y Computaci\u00f3n, Universidad Tecnol\u00f3gica Metropolitana, Jos\u00e9 Pedro Alessandri 1242, \u00d1u\u00f1oa, Santiago de Chile 7800002, Regi\u00f3n Metropolitana, Chile","institution_ids":["https://openalex.org/I4210144223"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082230826","display_name":"Pablo P\u00e9rez-Lantero","orcid":"https://orcid.org/0000-0002-8703-8970"},"institutions":[{"id":"https://openalex.org/I10457146","display_name":"Universidad de Santiago de Chile","ror":"https://ror.org/02ma57s91","country_code":"CL","type":"education","lineage":["https://openalex.org/I10457146"]},{"id":"https://openalex.org/I69737025","display_name":"University of Chile","ror":"https://ror.org/047gc3g35","country_code":"CL","type":"education","lineage":["https://openalex.org/I69737025"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Pablo P\u00e9rez-Lantero","raw_affiliation_strings":["Departamento de Matem\u00e1tica y Ciencia de la Computaci\u00f3n, Universidad de Santiago de Chile (USACH), Las Sophoras 173, Santiago de Chile, Regi\u00f3n Metropolitana, Chile"],"raw_orcid":"https://orcid.org/0000-0002-8703-8970","affiliations":[{"raw_affiliation_string":"Departamento de Matem\u00e1tica y Ciencia de la Computaci\u00f3n, Universidad de Santiago de Chile (USACH), Las Sophoras 173, Santiago de Chile, Regi\u00f3n Metropolitana, Chile","institution_ids":["https://openalex.org/I10457146","https://openalex.org/I69737025"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5062044790","display_name":"Carlos Seara","orcid":"https://orcid.org/0000-0002-0095-1725"},"institutions":[{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Carlos Seara","raw_affiliation_strings":["Departament de Matem\u00e0tiques, Universitat Polit\u00e8cnica de Catalunya, Jordi Girona 1, 08034 Barcelona, Spain"],"raw_orcid":"https://orcid.org/0000-0002-0095-1725","affiliations":[{"raw_affiliation_string":"Departament de Matem\u00e0tiques, Universitat Polit\u00e8cnica de Catalunya, Jordi Girona 1, 08034 Barcelona, Spain","institution_ids":["https://openalex.org/I9617848"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5062044790"],"corresponding_institution_ids":["https://openalex.org/I9617848"],"apc_list":{"value":2750,"currency":"USD","value_usd":2750},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.31307284,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"387","issue":null,"first_page":"260","last_page":"271"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.9164000153541565,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"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/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.9164000153541565,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"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/T12536","display_name":"Topological and Geometric Data Analysis","score":0.026200000196695328,"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/T11830","display_name":"Point processes and geometric inequalities","score":0.006800000090152025,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"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/monochromatic-color","display_name":"Monochromatic color","score":0.6924999952316284},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.578000009059906},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5397999882698059},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.5159000158309937},{"id":"https://openalex.org/keywords/construct","display_name":"Construct (python library)","score":0.420199990272522},{"id":"https://openalex.org/keywords/caterpillar","display_name":"Caterpillar","score":0.4189999997615814}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8435999751091003},{"id":"https://openalex.org/C40833965","wikidata":"https://www.wikidata.org/wiki/Q6901438","display_name":"Monochromatic color","level":2,"score":0.6924999952316284},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6402000188827515},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.578000009059906},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5397999882698059},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.5159000158309937},{"id":"https://openalex.org/C2780801425","wikidata":"https://www.wikidata.org/wiki/Q5164392","display_name":"Construct (python library)","level":2,"score":0.420199990272522},{"id":"https://openalex.org/C2776769236","wikidata":"https://www.wikidata.org/wiki/Q81825","display_name":"Caterpillar","level":3,"score":0.4189999997615814},{"id":"https://openalex.org/C29123130","wikidata":"https://www.wikidata.org/wiki/Q874709","display_name":"Computational geometry","level":2,"score":0.3837999999523163},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3779999911785126},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.37400001287460327},{"id":"https://openalex.org/C3017489831","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Running time","level":2,"score":0.3725999891757965},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.3612000048160553},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3440999984741211},{"id":"https://openalex.org/C3018263672","wikidata":"https://www.wikidata.org/wiki/Q1296251","display_name":"Efficient algorithm","level":2,"score":0.26440000534057617},{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.2551000118255615}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1016/j.dam.2026.02.049","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.dam.2026.02.049","pdf_url":null,"source":{"id":"https://openalex.org/S171741597","display_name":"Discrete Applied Mathematics","issn_l":"0166-218X","issn":["0166-218X","1872-6771"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Discrete Applied Mathematics","raw_type":"journal-article"},{"id":"pmh:oai:upcommons.upc.edu:2117/460151","is_oa":false,"landing_page_url":"https://hdl.handle.net/2117/460151","pdf_url":null,"source":{"id":"https://openalex.org/S4377196262","display_name":"UPCommons institutional repository (Universitat Polit\u00e8cnica de Catalunya)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I9617848","host_organization_name":"Universitat Polit\u00e8cnica de Catalunya","host_organization_lineage":["https://openalex.org/I9617848"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":null,"raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Life in Land","score":0.45004430413246155,"id":"https://metadata.un.org/sdg/15"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320315062","display_name":"Ministerio de Ciencia, Innovaci\u00f3n y Universidades","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":22,"referenced_works":["https://openalex.org/W1964869106","https://openalex.org/W1969089430","https://openalex.org/W1973937174","https://openalex.org/W2004288058","https://openalex.org/W2019192303","https://openalex.org/W2048256194","https://openalex.org/W2063771021","https://openalex.org/W2086526821","https://openalex.org/W2087949901","https://openalex.org/W2092399768","https://openalex.org/W2092509243","https://openalex.org/W2142766864","https://openalex.org/W2147265181","https://openalex.org/W2158107054","https://openalex.org/W2600326758","https://openalex.org/W2914918186","https://openalex.org/W2963240895","https://openalex.org/W2990353831","https://openalex.org/W3098301955","https://openalex.org/W3120210689","https://openalex.org/W4303982821","https://openalex.org/W4403968418"],"related_works":[],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-03-20T20:54:20.808490","created_date":"2026-03-20T00:00:00"}