On Abstract $\mathrm{grad}-\mathrm{div}$ Systems

Rainer Picard, Stefan Seidler, Sascha Trostorff +1

For a large class of dynamical problems from mathematical physics the skew-selfadjointness of a spatial operator of the form $A=\left(\begin{array}{cc} 0 & -C^{*}\\ C & 0 \end{arra…