The objective of this paper is to study the number and stability of limit cycles for planar
piecewise linear (PWL) systems of node–saddle type with two linear regions. Firstly, we give …

The aim of this paper is to deal with the problem of limit cycles for a general planar
piecewise linear differential system of saddle–focus type. By using the Liénard-like …

This paper deals with the question of the determinacy of the maximum number of limit cycles
of some classes of planar discontinuous piecewise linear differential systems defined in two …

In this paper, we investigate limit cycles induced by threshold nonlinearity of piecewise
linear (PWL) differential systems, which are node-focus type or node-center type with the …

The creation or destruction of a crossing limit cycle when a sliding segment changes its
stability, is known as pseudo-Hopf bifurcation. In this paper, under generic conditions, we …

From the beginning of this century more than thirty papers have been published studying the
limit cycles of the discontinuous piecewise linear differential systems with two pieces …

In this paper we deal with planar piecewise linear differential systems defined in two zones.
We consider the case when the two linear zones are angular sectors of angles α and 2 π− α …

In this paper, we deal with discontinuous piecewise differential systems formed by two
differential systems separated by a straight line when these two differential systems are …

We consider continuous piecewise-linear differential systems with three zones where the
central one is degenerate, that is, the determinant of its linear part vanishes. By moving one …

In this paper, the limit cycle bifurcation problem is investigated for a class of planar
discontinuous perturbed systems with n parallel switch lines. Under the assumption that the …