ORDINARY DIFFERENTIAL EQUATIONS WITH DELTA FUNCTION TERMS


Marko Nedeljkov, Michael Oberguggenberger




This article is devoted to nonlinear ordinary differential equations with additive or multiplicative terms consisting of Dirac delta functions or derivatives thereof. Regularizing the delta function terms produces a family of smooth solutions. Conditions on the nonlinear terms, relating to the order of the derivatives of the delta function part, are established so that the regularized solutions converge to a limiting distribution.