{"id":{"repo_id":"bu","oai_identifier":"oai:open.bu.edu:2144/34584"},"canonical_url":"https://search.dev.ndltd.org/etd/bu/oai:open.bu.edu:2144/34584","repository":{"repo_id":"bu","name":"Boston University","base_url":"https://open.bu.edu/oai/request"},"display":{"title":"A perturbation solution of linear elliptic equation","abstract":"The first boundary value problem for eΔu + a(x,y,e)ux + b(x,y,e)uy +c(x,y,e)u = d(x,y,e) for small e. This problem with coefficients independent of e was treated by Norman Levinson and appeared in Annals of Mathematics, Vol. 51, No. 2, March, 1950 [TRUNCATED].","abstract_html":"The first boundary value problem for eΔu + a(x,y,e)ux + b(x,y,e)uy +c(x,y,e)u = d(x,y,e) for small e. This problem with coefficients independent of e was treated by Norman Levinson and appeared in Annals of Mathematics, Vol. 51, No. 2, March, 1950 [TRUNCATED].","abstract_has_math":false,"creators":["Koval, Daniel"],"institution":"Boston University","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1965,"date_issued":"1965","date_published":"1965","updated_at":"2026-07-24T01:25:58Z","subjects":["Mathematics","Linear elliptic equations","Perturbation theory"],"languages":["en_US"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["b1462509"],"render_values":[{"text":"b1462509","href":null,"code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/2144/34584","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Koval, Daniel"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2019-04-08T17:34:32Z"]},{"key":"dc:date.issued","label":"Date","values":["1965"]},{"key":"dc:publisher","label":"Institution","values":["Boston University"]},{"key":"dc:type","label":"Dc Type","values":["Thesis/Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Mathematics","Linear elliptic equations","Perturbation theory"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_US"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["b1462509"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/2144/34584"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis (Ph.D.)--Boston University","PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you."]},{"key":"dc:description.abstract","label":"Abstract","values":["The first boundary value problem for eΔu + a(x,y,e)ux + b(x,y,e)uy +c(x,y,e)u = d(x,y,e) for small e. This problem with coefficients independent of e was treated by Norman Levinson and appeared in Annals of Mathematics, Vol. 51, No. 2, March, 1950 [TRUNCATED]."]},{"key":"dc:title","label":"Title","values":["A perturbation solution of linear elliptic equation"]}]}],"canonical_facts":{"dc:creator":["Koval, Daniel"],"dc:date.accessioned":["2019-04-08T17:34:32Z"],"dc:date.issued":["1965"],"dc:description":["Thesis (Ph.D.)--Boston University","PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you."],"dc:description.abstract":["The first boundary value problem for eΔu + a(x,y,e)ux + b(x,y,e)uy +c(x,y,e)u = d(x,y,e) for small e. This problem with coefficients independent of e was treated by Norman Levinson and appeared in Annals of Mathematics, Vol. 51, No. 2, March, 1950 [TRUNCATED]."],"dc:identifier.other":["b1462509"],"dc:identifier.uri":["https://hdl.handle.net/2144/34584"],"dc:language.iso":["en_US"],"dc:publisher":["Boston University"],"dc:subject":["Mathematics","Linear elliptic equations","Perturbation theory"],"dc:title":["A perturbation solution of linear elliptic equation"],"dc:type":["Thesis/Dissertation"]},"updated_at":"2026-07-24T01:25:58Z"}