Adıvar, MuratRaffoul, Youssef N.2023-06-162023-06-1620100898-12211873-7668https://doi.org/10.1016/j.camwa.2010.03.025https://hdl.handle.net/20.500.14365/1115The purpose of this note is twofold: First we highlight the importance of an implicit assumption in [Murat Adivar, Youssef N. Raffoul, Stability and periodicity in dynamic delay equations, Computers and Mathematics with Applications 58 (2009) 264-272]. Second we emphasize one consequence of the bijectivity assumption which enables ruling out the commutativity condition delta circle sigma = sigma circle delta on the delay function. (C) 2010 Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/openAccessDelay dynamic equationsDelay functionLyapunovPeriodic solutionsStabilityTime scalesA Note on Stability and Periodicity in Dynamic Delay Equations [comput. Math. Appl. 58 (2009) 264-273]Comput. Math. Appl. 58 (2009) 264-273Article10.1016/j.camwa.2010.03.0252-s2.0-77953126948