39 citations
6 papers
Algorithms for Max Hamming Exact Satisfiability
Vilhelm Dahllof
We here study Max Hamming XSAT, ie, the problem of finding two XSAT models at maximum Hamming distance. By using a recent XSAT solver as an auxiliary function, an O(1.911^n) time a…
Explicit multipole moments of stationary axisymmetric spacetimes
Thomas Backdahl, Magnus Herberthson
In this article we study multipole moments of axisymmetric stationary asymptotically flat spacetimes. We show how the tensorial recursion of Geroch and Hansen can be reduced to a r…
Perfect Skolem sets
Gustav Nordh
A Skolem sequence is a sequence a_1,a_2,...,a_2n (where a_i \in A = {1,...,n }), each a_i occurs exactly twice in the sequence and the two occurrences are exactly a_i positions apa…
Lp estimates of solutions to mixed boundary value problems for the Stokes system in polyhedral domains
Vladimir G. Maz'ya, Juergen Rossmann
A mixed boundary value problem for the Stokes system in a polyhedral domain is considered. Here different boundary conditions (in particular, Dirichlet, Neumann, free surface condi…
Pointwise estimates for Green's kernel of a mixed boundary value problem to the Stokes system in a polyhedral cone
Vladimir G. Maz'ya, Juergen Rossmann
The paper deals with a mixed boundary value problem for the Stokes system in a polyhedral cone. Here different boundary conditions (in particular, Dirichlet, Neumann, free surface…
Statistical mechanics of general discrete nonlinear Schr{ö}dinger models: Localization transition and its relevance for Klein-Gordon lattices
Magnus Johansson, Kim O. Rasmussen
We extend earlier work [Phys.Rev.Lett. 84, 3740 (2000)] on the statistical mechanics of the cubic one-dimensional discrete nonlinear Schrodinger (DNLS) equation to a more general c…