{"id":"https://openalex.org/W2989881150","doi":"https://doi.org/10.3390/sym11121457","title":"Some New Observations and Results for Convex Contractions of Istratescu\u2019s Type","display_name":"Some New Observations and Results for Convex Contractions of Istratescu\u2019s Type","publication_year":2019,"publication_date":"2019-11-27","ids":{"openalex":"https://openalex.org/W2989881150","doi":"https://doi.org/10.3390/sym11121457","mag":"2989881150"},"language":"en","primary_location":{"is_oa":true,"landing_page_url":"https://doi.org/10.3390/sym11121457","pdf_url":"https://www.mdpi.com/2073-8994/11/12/1457/pdf?version=1575026296","source":{"id":"https://openalex.org/S190787756","display_name":"Symmetry","issn_l":"2073-8994","issn":["2073-8994"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true},"type":"article","type_crossref":"journal-article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2073-8994/11/12/1457/pdf?version=1575026296","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5085161736","display_name":"Zoran D\u200e. Mitrovi\u0107","orcid":"https://orcid.org/0000-0001-9993-9082"},"institutions":[{"id":"https://openalex.org/I141445968","display_name":"Ton Duc Thang University","ror":"https://ror.org/01drq0835","country_code":"VN","type":"education","lineage":["https://openalex.org/I141445968"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Z. D. Mitrovi\u0107","raw_affiliation_strings":["Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam","Nonlinear Analysis Research Group, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam"],"affiliations":[{"raw_affiliation_string":"Nonlinear Analysis Research Group, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam","institution_ids":["https://openalex.org/I141445968"]},{"raw_affiliation_string":"Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam","institution_ids":["https://openalex.org/I141445968"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090801275","display_name":"Hassen Aydi","orcid":"https://orcid.org/0000-0003-4606-7211"},"institutions":[{"id":"https://openalex.org/I8636806","display_name":"University of Sousse","ror":"https://ror.org/00dmpgj58","country_code":"TN","type":"education","lineage":["https://openalex.org/I8636806"]},{"id":"https://openalex.org/I4210126829","display_name":"China Medical University Hospital","ror":"https://ror.org/0368s4g32","country_code":"TW","type":"healthcare","lineage":["https://openalex.org/I4210126829"]},{"id":"https://openalex.org/I184693016","display_name":"China Medical University","ror":"https://ror.org/00v408z34","country_code":"TW","type":"education","lineage":["https://openalex.org/I184693016"]}],"countries":["TN","TW"],"is_corresponding":true,"raw_author_name":"H. Aydi","raw_affiliation_strings":["China Medical University Hospital, China Medical University, Taichung 40402, Taiwan","Institut Sup\u00e9rieur d\u2019Informatique et des Techniques de Communication, Universit\u00e9 de Sousse, Hammam Sousse 4000, Tunisia"],"affiliations":[{"raw_affiliation_string":"Institut Sup\u00e9rieur d\u2019Informatique et des Techniques de Communication, Universit\u00e9 de Sousse, Hammam Sousse 4000, Tunisia","institution_ids":["https://openalex.org/I8636806"]},{"raw_affiliation_string":"China Medical University Hospital, China Medical University, Taichung 40402, Taiwan","institution_ids":["https://openalex.org/I4210126829","https://openalex.org/I184693016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021626938","display_name":"Nabil Mlaiki","orcid":"https://orcid.org/0000-0002-7986-886X"},"institutions":[{"id":"https://openalex.org/I142024983","display_name":"Prince Sultan University","ror":"https://ror.org/053mqrf26","country_code":"SA","type":"education","lineage":["https://openalex.org/I142024983"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"N. Mlaiki","raw_affiliation_strings":["Department of Mathematics and General Sciences, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics and General Sciences, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia","institution_ids":["https://openalex.org/I142024983"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028258233","display_name":"Milanka Garda\u0161evi\u0107-Filipovi\u0107","orcid":"https://orcid.org/0000-0003-4604-2065"},"institutions":[{"id":"https://openalex.org/I4210105304","display_name":"Union University","ror":"https://ror.org/01p8d4t94","country_code":"RS","type":"education","lineage":["https://openalex.org/I4210105304"]}],"countries":["RS"],"is_corresponding":false,"raw_author_name":"M. Garda\u0161evi\u0107-Filipovi\u0107","raw_affiliation_strings":["School of Computing, Union University, 11000 Belgrade, Serbia"],"affiliations":[{"raw_affiliation_string":"School of Computing, Union University, 11000 Belgrade, Serbia","institution_ids":["https://openalex.org/I4210105304"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057759780","display_name":"Katarina Kuki\u0107","orcid":"https://orcid.org/0000-0001-7369-2456"},"institutions":[{"id":"https://openalex.org/I4068193","display_name":"University of Belgrade","ror":"https://ror.org/02qsmb048","country_code":"RS","type":"education","lineage":["https://openalex.org/I4068193"]}],"countries":["RS"],"is_corresponding":false,"raw_author_name":"K. Kuki\u0107","raw_affiliation_strings":["Faculty for Trafic and Transport Engineering, University of Belgrade, 11000 Belgrade, Serbia"],"affiliations":[{"raw_affiliation_string":"Faculty for Trafic and Transport Engineering, University of Belgrade, 11000 Belgrade, Serbia","institution_ids":["https://openalex.org/I4068193"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032620709","display_name":"Stojan Radenovi\u0107","orcid":"https://orcid.org/0000-0001-8254-6688"},"institutions":[{"id":"https://openalex.org/I4068193","display_name":"University of Belgrade","ror":"https://ror.org/02qsmb048","country_code":"RS","type":"education","lineage":["https://openalex.org/I4068193"]}],"countries":["RS"],"is_corresponding":false,"raw_author_name":"S. Radenovi\u0107","raw_affiliation_strings":["Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, 11120 Belgrade, Serbia"],"affiliations":[{"raw_affiliation_string":"Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, 11120 Belgrade, Serbia","institution_ids":["https://openalex.org/I4068193"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5042326806","display_name":"Manuel De la Sen","orcid":"https://orcid.org/0000-0001-9320-9433"},"institutions":[{"id":"https://openalex.org/I169108374","display_name":"University of the Basque Country","ror":"https://ror.org/000xsnr85","country_code":"ES","type":"education","lineage":["https://openalex.org/I169108374"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"M. de la Sen","raw_affiliation_strings":["Institute of Research and Development of Processes IIDP, University of the Basque Country, Campus of Leioa, P.O. Box 48940, Leioa, Bizkaia, Spain"],"affiliations":[{"raw_affiliation_string":"Institute of Research and Development of Processes IIDP, University of the Basque Country, Campus of Leioa, P.O. Box 48940, Leioa, Bizkaia, Spain","institution_ids":["https://openalex.org/I169108374"]}]}],"institution_assertions":[],"countries_distinct_count":6,"institutions_distinct_count":8,"corresponding_author_ids":["https://openalex.org/A5090801275","https://openalex.org/A5042326806"],"corresponding_institution_ids":["https://openalex.org/I8636806","https://openalex.org/I4210126829","https://openalex.org/I184693016","https://openalex.org/I169108374"],"apc_list":{"value":2000,"currency":"CHF","value_usd":2165,"provenance":"doaj"},"apc_paid":{"value":2000,"currency":"CHF","value_usd":2165,"provenance":"doaj"},"fwci":2.066,"has_fulltext":true,"fulltext_origin":"pdf","cited_by_count":11,"citation_normalized_percentile":{"value":0.771877,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":86,"max":87},"biblio":{"volume":"11","issue":"12","first_page":"1457","last_page":"1457"},"is_retracted":false,"is_paratext":false,"primary_topic":{"id":"https://openalex.org/T11777","display_name":"Fixed Point Theorems Analysis","score":0.9999,"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"}},"topics":[{"id":"https://openalex.org/T11777","display_name":"Fixed Point Theorems Analysis","score":0.9999,"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":[],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7079376},{"id":"https://openalex.org/C198043062","wikidata":"https://www.wikidata.org/wiki/Q180953","display_name":"Metric space","level":2,"score":0.57273185},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.5114876},{"id":"https://openalex.org/C196613150","wikidata":"https://www.wikidata.org/wiki/Q3966092","display_name":"Convex metric space","level":3,"score":0.46840566},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.453186},{"id":"https://openalex.org/C163415756","wikidata":"https://www.wikidata.org/wiki/Q126473","display_name":"Contraction (grammar)","level":2,"score":0.42569548},{"id":"https://openalex.org/C145084290","wikidata":"https://www.wikidata.org/wiki/Q2713824","display_name":"Metric map","level":4,"score":0.42464334},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.37047184},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.3428607},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.1726473},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.052671045},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"is_oa":true,"landing_page_url":"https://doi.org/10.3390/sym11121457","pdf_url":"https://www.mdpi.com/2073-8994/11/12/1457/pdf?version=1575026296","source":{"id":"https://openalex.org/S190787756","display_name":"Symmetry","issn_l":"2073-8994","issn":["2073-8994"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true}],"best_oa_location":{"is_oa":true,"landing_page_url":"https://doi.org/10.3390/sym11121457","pdf_url":"https://www.mdpi.com/2073-8994/11/12/1457/pdf?version=1575026296","source":{"id":"https://openalex.org/S190787756","display_name":"Symmetry","issn_l":"2073-8994","issn":["2073-8994"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true},"sustainable_development_goals":[],"grants":[{"funder":"https://openalex.org/F4320321705","funder_display_name":"Eusko Jaurlaritza","award_id":"IT1207- 19"}],"datasets":[],"versions":[],"referenced_works_count":37,"referenced_works":["https://openalex.org/W1505674755","https://openalex.org/W1984792954","https://openalex.org/W2003081210","https://openalex.org/W2018509233","https://openalex.org/W2035322935","https://openalex.org/W2036246960","https://openalex.org/W2100818308","https://openalex.org/W2151800383","https://openalex.org/W2157511936","https://openalex.org/W2168033245","https://openalex.org/W2332549331","https://openalex.org/W2336901660","https://openalex.org/W2337682005","https://openalex.org/W2346233044","https://openalex.org/W2559981017","https://openalex.org/W2622769970","https://openalex.org/W2758308205","https://openalex.org/W2763320801","https://openalex.org/W2788813825","https://openalex.org/W2793758937","https://openalex.org/W2808766465","https://openalex.org/W2895762148","https://openalex.org/W2900508523","https://openalex.org/W2901434319","https://openalex.org/W2904071456","https://openalex.org/W2909435256","https://openalex.org/W2911930577","https://openalex.org/W2947000752","https://openalex.org/W2949283613","https://openalex.org/W2963515256","https://openalex.org/W2969834706","https://openalex.org/W3113236260","https://openalex.org/W4242824027","https://openalex.org/W4244172225","https://openalex.org/W655621152","https://openalex.org/W72134831","https://openalex.org/W759404801"],"related_works":["https://openalex.org/W4322625928","https://openalex.org/W3039282288","https://openalex.org/W2912332829","https://openalex.org/W2497778489","https://openalex.org/W2398868469","https://openalex.org/W2291453617","https://openalex.org/W2186678087","https://openalex.org/W2142367722","https://openalex.org/W2088439120","https://openalex.org/W194343720"],"abstract_inverted_index":{"The":[0],"purpose":[1],"is":[2,25],"to":[3],"ensure":[4],"that":[5],"a":[6,18],"continuous":[7],"convex":[8,28],"contraction":[9],"mapping":[10],"of":[11,30],"order":[12,31],"two":[13],"in":[14,33,38],"b-metric":[15,34,42],"spaces":[16,35],"has":[17],"unique":[19],"fixed":[20],"point.":[21],"Moreover,":[22],"this":[23],"result":[24],"generalized":[26],"for":[27],"contractions":[29],"n":[32],"and":[36,40],"also":[37],"almost":[39],"quasi":[41],"spaces.":[43]},"cited_by_api_url":"https://api.openalex.org/works?filter=cites:W2989881150","counts_by_year":[{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":2}],"updated_date":"2024-12-08T16:37:40.332814","created_date":"2019-12-05"}
