{"title":"Delta derivatives of the solution to a third-order parameter dependent boundary value problem on an arbitrary time scale","authors":"William M. Jensen, J. W. Lyons, Richard Robinson","doi":"10.7153/dea-2022-14-20","DOIUrl":null,"url":null,"abstract":". We show that the solution of the third order parameter dependant dynamic boundary value problem y ΔΔΔ = f (cid:2) t , y , y Δ , y ΔΔ , λ (cid:3) , y ( t 1 ) = y 1 , y ( t 2 ) = y 2 , y ( t 3 ) = y 3 on a general time scale may be (delta) differentiated with respect to y 1 , y 2 , y 3 , t 1 , t 2 , t 3 , and λ . We show that the (delta) derivative of the solution solves the third order boundary value problem consisting of either the variational equation (in the dense case), the dynamic analogue (in the scattered case), or a modi fi ed variational equation in the parameter case with interesting boundary conditions in all cases.","PeriodicalId":179999,"journal":{"name":"Differential Equations & Applications","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Differential Equations & Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.7153/dea-2022-14-20","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
. We show that the solution of the third order parameter dependant dynamic boundary value problem y ΔΔΔ = f (cid:2) t , y , y Δ , y ΔΔ , λ (cid:3) , y ( t 1 ) = y 1 , y ( t 2 ) = y 2 , y ( t 3 ) = y 3 on a general time scale may be (delta) differentiated with respect to y 1 , y 2 , y 3 , t 1 , t 2 , t 3 , and λ . We show that the (delta) derivative of the solution solves the third order boundary value problem consisting of either the variational equation (in the dense case), the dynamic analogue (in the scattered case), or a modi fi ed variational equation in the parameter case with interesting boundary conditions in all cases.
. 我们表明,解决三阶参数依赖动态边值问题yΔΔΔ= f (cid: 2) t、y, yΔyΔΔ,λ(cid: 3), y (t - 1) = y, y (t 2) = y, y (t 3) = y 3一般时间范围可能(δ)分化对y 1, y, y 3 t, t, t 3,λ。我们证明了该解的(delta)导数解决了三阶边值问题,该问题由变分方程(在密集情况下)、动态模拟(在分散情况下)或参数情况下的模定变分方程组成,在所有情况下都具有有趣的边界条件。