A stochastic logistic model with delays and impulsive perturbation is proposed and investigated. Sufficient conditions for extinction are established as well as
An analytic function f in the unit disk D := {z ∈ C : |z| < 1}, standardly normalized, is called close-to-convex with respect to the Koebe function k(z) := z/(
In this article, we generalize the class of meromorphic functions with bounded boundary rotation and related classes. Characterizations and some properties of t
We consider the problem of conformal metrics equivalent to the Euclidean metric, with zero scalar curvature and prescribed mean curvature on the boundary of the