The cyclicity of period annulus of a quadratic reversible Lotka-Volterra system

We prove that by perturbing the periodic annulus of the quadratic polynomial reversible Lotka-Volterra differential system. (x) over dot = y + 3/2 (x(2) - y(2)), (y) over dot = - x(1 - y), inside the class of all quadratic polynomial differential systems we can obtain at most two limit cycles.Mathematics, AppliedPhysics, MathematicalSCI(E)14ARTICLE122971-29792