On a Periodic Solution of a Differential Equation

Abstract

and should be submitted in accordance with the instructions given on the inside front cover. An asterisk placed beside a problem number indicates that the problem was submitted without solution. Proposers and solvers whose solution is published will receive 10 reprints of the corresponding problem section. Other solvers will receive just one reprint.Problem 63-(corrected), On Integrals Related to Bessel Functions, by ROBERT E. SHAFER (Lawrence Radiation Laboratory).Show that the integral X t-1 dt I cos (t-) t+ Re () > -1, satisfies the differential equation {x2D + xD (2 + x2)