{"id":"https://openalex.org/W2038154241","doi":"https://doi.org/10.1007/s00454-004-0803-5","title":"Some Characterizations of Ellipsoids by Sections","display_name":"Some Characterizations of Ellipsoids by Sections","publication_year":2004,"publication_date":"2004-03-01","ids":{"openalex":"https://openalex.org/W2038154241","doi":"https://doi.org/10.1007/s00454-004-0803-5","mag":"2038154241"},"language":"en","primary_location":{"id":"doi:10.1007/s00454-004-0803-5","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s00454-004-0803-5","pdf_url":"https://link.springer.com/content/pdf/10.1007/s00454-004-0803-5.pdf","source":{"id":"https://openalex.org/S103671469","display_name":"Discrete & Computational Geometry","issn_l":"0179-5376","issn":["0179-5376","1432-0444"],"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":"Discrete and Computational Geometry","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://link.springer.com/content/pdf/10.1007/s00454-004-0803-5.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5070926278","display_name":"Javier Alonso","orcid":"https://orcid.org/0000-0003-0045-5390"},"institutions":[{"id":"https://openalex.org/I80606768","display_name":"Universidad de Extremadura","ror":"https://ror.org/0174shg90","country_code":"ES","type":"education","lineage":["https://openalex.org/I80606768"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Javier Alonso","raw_affiliation_strings":["Departamento de Matem\u00e1ticas,\n Universidad de Extremadura,\n 06071 Badajoz, Spain","Departamento de Matem\u00e1ticas,#N# Universidad de Extremadura,#N# 06071 Badajoz, Spain"],"affiliations":[{"raw_affiliation_string":"Departamento de Matem\u00e1ticas,\n Universidad de Extremadura,\n 06071 Badajoz, Spain","institution_ids":["https://openalex.org/I80606768"]},{"raw_affiliation_string":"Departamento de Matem\u00e1ticas,#N# Universidad de Extremadura,#N# 06071 Badajoz, Spain","institution_ids":["https://openalex.org/I80606768"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111720301","display_name":"Pedro Mart\ufffdn","orcid":null},"institutions":[{"id":"https://openalex.org/I80606768","display_name":"Universidad de Extremadura","ror":"https://ror.org/0174shg90","country_code":"ES","type":"education","lineage":["https://openalex.org/I80606768"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Pedro Mart\ufffdn","raw_affiliation_strings":["Departamento de Matem\u00e1ticas,#N# Universidad de Extremadura,#N# 06071 Badajoz, Spain"],"affiliations":[{"raw_affiliation_string":"Departamento de Matem\u00e1ticas,#N# Universidad de Extremadura,#N# 06071 Badajoz, Spain","institution_ids":["https://openalex.org/I80606768"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5070926278"],"corresponding_institution_ids":["https://openalex.org/I80606768"],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.14596631,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"31","issue":"4","first_page":"643","last_page":"654"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11830","display_name":"Point processes and geometric inequalities","score":0.9986000061035156,"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"}},"topics":[{"id":"https://openalex.org/T11830","display_name":"Point processes and geometric inequalities","score":0.9986000061035156,"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"}},{"id":"https://openalex.org/T12504","display_name":"Mathematics and Applications","score":0.9103000164031982,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/hyperplane","display_name":"Hyperplane","score":0.8827941417694092},{"id":"https://openalex.org/keywords/ellipsoid","display_name":"Ellipsoid","score":0.871155858039856},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.780346155166626},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.7063907980918884},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.6452275514602661},{"id":"https://openalex.org/keywords/convex-body","display_name":"Convex body","score":0.6334673762321472},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.37478265166282654},{"id":"https://openalex.org/keywords/convex-hull","display_name":"Convex hull","score":0.1425512135028839},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.06722894310951233}],"concepts":[{"id":"https://openalex.org/C68693459","wikidata":"https://www.wikidata.org/wiki/Q657586","display_name":"Hyperplane","level":2,"score":0.8827941417694092},{"id":"https://openalex.org/C57489055","wikidata":"https://www.wikidata.org/wiki/Q190046","display_name":"Ellipsoid","level":2,"score":0.871155858039856},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.780346155166626},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.7063907980918884},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6452275514602661},{"id":"https://openalex.org/C134912446","wikidata":"https://www.wikidata.org/wiki/Q5166516","display_name":"Convex body","level":4,"score":0.6334673762321472},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.37478265166282654},{"id":"https://openalex.org/C206194317","wikidata":"https://www.wikidata.org/wiki/Q1138624","display_name":"Convex hull","level":3,"score":0.1425512135028839},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.06722894310951233},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s00454-004-0803-5","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s00454-004-0803-5","pdf_url":"https://link.springer.com/content/pdf/10.1007/s00454-004-0803-5.pdf","source":{"id":"https://openalex.org/S103671469","display_name":"Discrete & Computational Geometry","issn_l":"0179-5376","issn":["0179-5376","1432-0444"],"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":"Discrete and Computational Geometry","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1007/s00454-004-0803-5","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s00454-004-0803-5","pdf_url":"https://link.springer.com/content/pdf/10.1007/s00454-004-0803-5.pdf","source":{"id":"https://openalex.org/S103671469","display_name":"Discrete & Computational Geometry","issn_l":"0179-5376","issn":["0179-5376","1432-0444"],"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":"Discrete and Computational Geometry","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.47999998927116394,"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11"}],"awards":[{"id":"https://openalex.org/G3998201246","display_name":null,"funder_award_id":"Social","funder_id":"https://openalex.org/F4320338080","funder_display_name":"European Social Fund"}],"funders":[{"id":"https://openalex.org/F4320328352","display_name":"Junta de Extremadura","ror":"https://ror.org/01df4mv68"},{"id":"https://openalex.org/F4320338080","display_name":"European Social Fund","ror":"https://ror.org/00k4n6c32"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2038154241.pdf","grobid_xml":"https://content.openalex.org/works/W2038154241.grobid-xml"},"referenced_works_count":6,"referenced_works":["https://openalex.org/W1598917891","https://openalex.org/W1969425543","https://openalex.org/W2025081043","https://openalex.org/W2047980031","https://openalex.org/W2117032341","https://openalex.org/W2335147195"],"related_works":["https://openalex.org/W2408196627","https://openalex.org/W4300721055","https://openalex.org/W2949537367","https://openalex.org/W2254594481","https://openalex.org/W1984292378","https://openalex.org/W2256648883","https://openalex.org/W86984613","https://openalex.org/W2035532675","https://openalex.org/W2037515146","https://openalex.org/W2028140316"],"abstract_inverted_index":null,"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-03-14T08:43:22.919905","created_date":"2025-10-10T00:00:00"}
