Open Access. © 2018 Mark A. McKibben and Micah Webster, published by De Gruyter. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 License. Nonauton. Dyn. Syst. 2018; 5:59–75 Research Article Open Access Mark A. McKibben* and Micah Webster Fractional Measure-dependent Nonlinear Second-order Stochastic Evolution Equations with Poisson Jumps https://doi.org/10.1515/msds-2018-0005 Received August 21, 2017; accepted April 7, 2018 Abstract: This paper focuses on a nonlinear second-order stochastic evolution equations driven by a frac- tional Brownian motion (fBm) with Poisson jumps and which is dependent upon a family of probability mea- sures. The global existence of mild solutions is established under various growth conditions, and a related stability result is discussed. An example is presented to illustrate the applicability of the theory. Keywords: Stochastic evolution equation; fractional Brownian motion; second-order equation; Poisson jumps; cosine family MSC: 60H05; 60H15; 60H20; 35R09 1 Introduction Second-order stochastic evolution equations have been the subject of numerous papers over the past sev- eral decades (See [20, 23, 24, 26, 27, 29]). In this paper, we extend existing work in this area by considering a stochastic second-order evolution equations driven by a fractional Brownian motion (fBm) in which the forcing terms are dependent on the probability law of the state function and in which Poisson jumps are present. Specifically, let D be a bounded domain in R N with smooth boundary D . Consider the following initial boundary value problem: ∂x(t , z) ∂t + n j , k=1 ∂z j a jk (·) ∂x(t , z) ∂z j ∂t + C(z)x(t , z)∂t + B ∂x(t , z) ∂t ∂t = F 1 2 ( t , z , x(t , z) ) + L 2 (D) F 2 2 (t , z , y)µ(t , z)(dy) ∂t + F 3 (t , z) h (t) + Z x(t, z)u ˜ N(dt , du) a.e. on (0, T) × D x(0, z)= ξ 1 (z), a.e. on D ∂x(0, z) ∂t = ξ 2 (z) a.e. on D x(t , z) = 0, a.e. on (0, T) × D (1.1) where z = z 1 , ... , z n 〉∈ D ; x : [0, T] × D R, F 1 2 : [0, T] × D × R R; F 2 2 : [0, T] × D × L 2 (D ) L 2 (D ); F 3 : [0, T] × D L(R, L 2 (D )); a jk : D R(1 j , k n); C : D R; B : L 2 (D ) L 2 (D ); and µ(t , ·) λ 2 (L 2 (D )) is the probability law of x(t , ·). In addition, {β h (t):0 t T} is a real fBm and {p(t): t [0, T]} is a Poisson point process, independent of β h (t), taking values in [0, ) with a σ-finite characteristic measure *Corresponding Author: Mark A. McKibben: Department of Mathematics, West Chester University, 25 University Avenue, West Chester, PA, 19383, E-mail: mmckibben@wcupa.edu Micah Webster: Center for Data, Mathematical, and Computational Sciences, Goucher College, 1021 Dulaney Valley Road, Baltimore, MD, 21286, E-mail: micah.webster@goucher.edu