RT Journal Article T1 An abstract approximate controllability result and applications to elliptic and parabolic systems with dynamic boundary conditions A1 Díaz Díaz, Jesús Ildefonso A1 Bejenaru, Ioan A1 Vrabie, Ioan I. AB The authors obtain an approximate controllability result for the nonlinear equation $y'+Ay+F(t,y)y=h(t)$ with the initial condition $y(0)=x$, where $x$ is the control and $A$ generates a $C_0$-semigroup in a Hilbert space. The Schauder fixed point theorem is the main tool. Then they apply their result to get approximate controllability for some classes of elliptic and parabolic problems with dynamic boundary conditions. There are 72 references, many of them referring to mathematical models in various areas where the results could be applied. PB Texas State University, Department of Mathematics SN 1072-6691 YR 2001 FD 2001 LK https://hdl.handle.net/20.500.14352/56995 UL https://hdl.handle.net/20.500.14352/56995 LA eng NO DGICYT NO CNCSU/CNFIS DS Docta Complutense RD 8 abr 2025