Orbitally symmetric systems with applications to planar centers
Orbitally symmetric systems with applications to planar centers
<p style='text-indent:20px;'>We present a generalization of the most usual symmetries in differential equations known as the time-reversibility and the equivariance ones. We check that the typical properties are also valid for the new definition that unifies both. With it, we are able to present new families of planar polynomial vector …