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Philos, C.G. (1991) Oscillations of First Order Linear Retarded Differential Equations. Journal of Mathematical Analysis and Applications, 157, 17-33.
https://doi.org/10.1016/0022-247x(91)90134-l

has been cited by the following article:

• TITLE: Theoretically Expected Phase Portrait of an Initial Value Problem with Periodic Piecewise Continuous Functions

  AUTHORS: Hugo Ramón Olmedo Mareco

  KEYWORDS: Ordinary Linear Nonhomogeneous Differential Equation, One-Sided Limits

  JOURNAL NAME: International Journal of Modern Nonlinear Theory and Application, Vol.13 No.3, November 27, 2024

  ABSTRACT: This work predicts theoretically the phase portrait including the existence and uniqueness of ω-limit cycle for an initial value problem y( 0 )= y 0 with an ordinary differential equation y ′ +py=f in which p and f are L-periodic piecewise continuous functions.