[PDF] Top 20 Symmetry Breaking in Numeric Constraint Problems

... Abstract. Symmetry-breaking constraints in the form of inequalities between variables have been proposed for a few kind of solution symmetries in numeric ...proposed in- ... Voir le document complet

... of symmetry and symmetry breaking is fundamental in all areas of ...science. Symmetry is often assimilated to order and beauty while symmetry breaking is the source of ... Voir le document complet

... communities. In particular, we will state and prove some well-known results (like for instance a special case of the first Hund’s rule [16]) for the convenience of the math- ematical ...help in improving ... Voir le document complet

... physical problems containing rotating symmetry exhibit azimuthal waves, from electromagnetic waves in nanophotonic crystals to seismic waves in giant ...this symmetry is broken, ... Voir le document complet

... equation in- volves an Euler-Lagrange multiplier µ (called the chemical potential), associated with the constraint on the density ...are in general non unique for fixed µ, a situation which is for ... Voir le document complet

... of symmetry and symmetry breaking is fundamental in all areas of ...science. Symmetry is often assimilated to order and beauty while symmetry breaking is the source of ... Voir le document complet

... introduction in the late 19th century, symmetry breaking has been found to play a crucial role in ...physics. In particular, it appears as one key phenomenon controlling hydrodynamic ... Voir le document complet

... coordination problems where “break symmetry” among the processes that are initially in a similar state is ...of symmetry breaking have been studied, most notably mutual exclusion [27] ... Voir le document complet

... from (1), that lim a→a c C CKN (θ, p, a) = ∞ if d ≥ 2. This provides a bound on t if θ > ϑ(p, d). Consider now a sequence (v n ) n of functions in H 1 (C), which minimizes E θ,Λ p [v] under the ... Voir le document complet

... and symmetry breaking are, group renaming [2, 4], committee decision problem [30] and musical benches ...results in anony- mous networks. In these models of distributed computing, processes ... Voir le document complet

... physical problems containing rotating symmetry exhibit azimuthal waves, from electromagnetic waves in nano photonics crystal to seismic waves in giant ...this symmetry is broken, ... Voir le document complet

... and constraint solving, a con- nection that has also been made by ...a constraint-solving algorithm in terms of abstract interpretation; they exploited the connection to design a new class of solvers ... Voir le document complet

... proposed in [19, 20] and experimentally tested in ...reported in [1, ...proposed in [8, 10, 18] has never received any convincing experimental ...coordinates in [4], and given the fact ... Voir le document complet

... first one is associated with the pointlike contribution of the condensed charges onto the surfaces which naturally result from an electrostatic contribution. It is nevertheless interest- ing to note that the prefactor of ... Voir le document complet

... solved in time O( f (k)|x| O(1) ), where |x| is the size of the instance x and f is any computable func- tion of the ...vertex in S) parameterized by k is FPT as it can be solved in time ...ized ... Voir le document complet

... included in the pseudo-potential, simulating therefore a lattice of pseudo-atoms with pseudo-charge Z “ λ “ ...plotted in Figure 2. Symmetry breaking occurs at about ... Voir le document complet

... If symmetry is known, then there are (radially symmetric) extremals. 3 Anticipat- ing on the results of the next section, we can state the following result which arises as a consequence of Schwarz’ symmetrization ... Voir le document complet

... a constraint graph in the form of a tree provides no more information than we would obtain by applying arc consistency to the original instance ...solved in polynomial time by any algorithm which ... Voir le document complet

... investigated in terms of their stereochemical ...discussed in detail in Section ...acid in different meteorite samples, even within the same chondrite ...consistency in the observed ... Voir le document complet

... given in figure 12, showing the streamwise vorticity (black and white surfaces) and velocity (blue and yellow) ...explained in detail in ...[10]. In fact, since the initial vortices are ... Voir le document complet