Qin Diao , Yong-Guo Shi , Hari Mohan Srivastava , Babak Shiri , Kelin Li
{"title":"Asymptotic analysis of solutions of delay difference equations","authors":"Qin Diao , Yong-Guo Shi , Hari Mohan Srivastava , Babak Shiri , Kelin Li","doi":"10.1016/j.rinam.2025.100562","DOIUrl":null,"url":null,"abstract":"<div><div>The asymptotic behavior of solutions for the delay difference equation <span><math><mrow><msub><mrow><mi>x</mi></mrow><mrow><mi>n</mi><mo>+</mo><mn>1</mn></mrow></msub><mo>=</mo><msub><mrow><mi>x</mi></mrow><mrow><mi>n</mi></mrow></msub><mi>f</mi><mrow><mo>(</mo><msub><mrow><mi>x</mi></mrow><mrow><mi>n</mi><mo>−</mo><mi>k</mi></mrow></msub><mo>)</mo></mrow><mo>,</mo><mspace></mspace><mspace></mspace><mi>n</mi><mo>></mo><mi>k</mi><mo>,</mo><mspace></mspace><mspace></mspace><mtext>for some</mtext><mspace></mspace><mspace></mspace><mi>k</mi><mo>∈</mo><mi>N</mi><mo>,</mo></mrow></math></span> is investigated, where <span><math><mi>f</mi></math></span> has an asymptotic power series. These equations have been studied for some special cases. This paper analyzes other cases and presents asymptotic expansions of solutions for such higher-order difference equations. Several examples are provided.</div></div>","PeriodicalId":36918,"journal":{"name":"Results in Applied Mathematics","volume":"26 ","pages":"Article 100562"},"PeriodicalIF":1.4000,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Results in Applied Mathematics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2590037425000263","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATHEMATICS, APPLIED","Score":null,"Total":0}
引用次数: 0
摘要
本文研究了延迟差分方程 xn+1=xnf(xn-k),n>k 的解的渐近行为,其中 f 具有渐近幂级数。这些方程已针对某些特殊情况进行了研究。本文分析了其他情况,并给出了此类高阶差分方程解的渐近展开式。本文提供了几个实例。
Asymptotic analysis of solutions of delay difference equations
The asymptotic behavior of solutions for the delay difference equation is investigated, where has an asymptotic power series. These equations have been studied for some special cases. This paper analyzes other cases and presents asymptotic expansions of solutions for such higher-order difference equations. Several examples are provided.