We generalize the“symplectic Khovanov cohomology” of Seidel and Smith [15] to tangles using the notion of topological symplectic field theory introduced by Wehrheim and Woodward [17].

We consider a Newton-Krylov approach for discretized compressible Euler equations. A good preconditioner in the Krylov subspace method is essential for obtaining an efficient solver in such an approach. In this paper we compare point-block-Gauss-Seidel, point-block-ILU and point-block-SPAI preconditioners. It turns out that the SPAI method is not satisfactory for our problem class. The point-bl...

We study a class of time–domain decomposition based methods for the solution of distributed linear quadratic optimal control problems. Our methods are based on a multiple shooting reformulation of the distributed linear quadratic optimal control problem as a discrete–time optimal control (DTOC) problem in Hilbert space. The optimality conditions for this DTOC problem lead to a linear system wit...

Dr Webber is from Aurora Advanced Healthcare, Vince Lombardi Cancer Clinics, Sarcoma Services, Milwaukee, Wisconsin; and Dr Seidel is from the Orthopaedic Surgical Oncology of Arizona, Phoenix, and the University of Arizona Department of Orthopedic Surgery, and Dr Webber is also from the University of Arizona Department of Orthopedic Surgery, Tucson, Arizona. Drs Webber and Seidel have no relev...