Science Progress (1933-), Vol. 104, No. 4 (2021), pp. 1-26 (26 pages) Singularity is one of the important features in invariant structures in several physical phenomena reflected often in the ...
This is a preview. Log in through your library . Abstract This paper is concerned with a functional differential equation xˊ(z) = x(az + bx(z)), where a ≠ 1 and b ≠ 0 . By constructing a convergent ...