%0 Journal Article %T Blow Up of a Cycle in Lotka-Volterra Type Equations with Competition-Cooperation Terms and Quasi-Linear Systems %A E. Bouse %A D. Rachinskii %J Quantitative Biology %D 2010 %I arXiv %X We consider systems where a cycle born via the Hopf bifurcation blows up to infinity as a parameter ranges over a finite interval. Two examples demonstrating this effect are presented: planar Lotka-Volterra type systems with a competition-cooperation term and quasi-linear higher order equations. %U http://arxiv.org/abs/1007.4424v1