Lloyd K. Williams, "Functional differential equations—a reciprocity principle", International Journal of Mathematics and Mathematical Sciences, vol. 9, Article ID 419894, 4 pages, 1986. https://doi.org/10.1155/S0161171286000996
Functional differential equations—a reciprocity principle
The functional differential equations proposed for solution here are mainly ordinary differential equations with fairly general argument deviations. Included among them are equations with involutions and some with reflections of the argument. Solutions will be obtained by quadratures in terms of implicitly defined functions. They have a wide range of applicability from the stability theory of differential-difference equations to electrodynamics and biological models.
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