When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
By I.M. Burkin, A.I. Shepeljavyi, G.A. Leonov. The van der Pol equation. The equation of oscillations of a pendulum. Frequency criteria for stability and properties of solutions of special matrix inequalities.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.