11 Apr
2019
11 Apr
'19
3:35 p.m.
I find this paper to be extremely poorly written. He never defines his terms. The first sentence of the abstract is ungrammatical. For some reason he discusses trying to multiply (d^2 y / dx^2) by (dx^2 / dt^2) [sic!]. No, this is not an interesting paper. —Dan ----- FYI -- This paper discusses the solution of a differential equation (y in terms of x) as well as its inverse function (x in terms of y). The particular example shows x as a cubic polynomial in y, so the inverse is solvable in radicals. I'm curious to know if this particular way of looking at things would provide more insights into the solvability of quartic, quintic, etc., equations. http://online.watsci.org/abstract_pdf/2019v26/v26n3a-pdf/4.pdf ... ... -----