@article{article_328821, title={Singular Perturbation Problems Using Indefinite Lyapunov Functions}, journal={Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi}, volume={10}, pages={64–78}, year={1997}, author={Albostan, Ayhan and Özek, Ahmet}, keywords={indefinite Lyapunov function,singular perturbation,two-time-scale system,nonlinear systems}, abstract={<p class="MsoNormal" style="text-align: justify; margin-bottom: 0.0001pt; line-height: normal;"> <span style="font-size: 14.0pt;font-family:"Times New Roman",serif"> <i> <span style="font-size: 14px;">With a dynamic system of differential equations consisting of many variables the singular perturbation methods are of great importance. </span> </i> <o:p> </o:p> </span> </p>}, number={2}, publisher={Eskişehir Osmangazi Üniversitesi}