{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,14]],"date-time":"2025-10-14T00:42:06Z","timestamp":1760402526578,"version":"build-2065373602"},"reference-count":28,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2020,1,17]],"date-time":"2020-01-17T00:00:00Z","timestamp":1579219200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003086","name":"Basque Government","doi-asserted-by":"publisher","award":["IT-1207-19"],"award-info":[{"award-number":["IT-1207-19"]}],"id":[{"id":"10.13039\/501100003086","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Axioms"],"abstract":"<jats:p>In this paper, we prove convergence theorems for viscosity approximation processes involving     *    \u2212nonexpansive multi-valued mappings in complete convex metric spaces. We also consider finite and infinite families of such mappings and prove convergence of the proposed iteration schemes to common fixed points of them. Our results improve and extend some corresponding results.<\/jats:p>","DOI":"10.3390\/axioms9010010","type":"journal-article","created":{"date-parts":[[2020,1,17]],"date-time":"2020-01-17T07:39:02Z","timestamp":1579246742000},"page":"10","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Viscosity Approximation Methods for \r\n          \r\n            \r\n              \r\n                *\r\n              \r\n            \r\n          \r\n        \u2212Nonexpansive Multi-Valued Mappings in Convex Metric Spaces"],"prefix":"10.3390","volume":"9","author":[{"given":"Azadeh","family":"Ghanifard","sequence":"first","affiliation":[{"name":"Faculty of Mathematics, K. N. Toosi University of Technology, Tehran 16569, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hashem Parvaneh","family":"Masiha","sequence":"additional","affiliation":[{"name":"Faculty of Mathematics, K. N. Toosi University of Technology, Tehran 16569, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9320-9433","authenticated-orcid":false,"given":"Manuel","family":"De La Sen","sequence":"additional","affiliation":[{"name":"Institute of Research and Development of Processes University of the Basque Country, 48940 Leioa, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5593-1924","authenticated-orcid":false,"given":"Maryam","family":"Ramezani","sequence":"additional","affiliation":[{"name":"Department of Mathematics, University of Bojnord, Bojnord 94531, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,1,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"142","DOI":"10.2996\/kmj\/1138846111","article-title":"A convexity in metric spaces and nonexpansive mappings","volume":"22","author":"Takahashi","year":"1970","journal-title":"Kodai Math. 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