@ARTICLE{Górecki_H._Positive_2020, author={Górecki, H. and Zaczyk, M.}, volume={68}, number={No. 3}, journal={Bulletin of the Polish Academy of Sciences Technical Sciences}, pages={585-591}, howpublished={online}, year={2020}, abstract={In the paper, maximal values xe(τ) of the solutions x(t) of the linear differential equations excited by the Dirac delta function are determined. There are obtained the analytical solutions of the equations and also the maximal positive values of these solutions. The obtained sufficient conditions of the positivity of these solutions are defined by the Theorems. There are also formulated the necessary conditions of the positivity of these solutions. The analytical formulae enable the design of the system with prescribed properties [3].}, type={Article}, title={Positive extremal values and solutions of the exponential equations with application to automatics}, URL={http://journals.pan.pl/Content/116532/PDF/20_585-591_01537_Bpast.No.68-3_30.06.20_K1G.pdf}, doi={10.24425/bpasts.2020.133376}, keywords={extremal values, transfer function, transcendental equations}, }