In this paper, we study the solution of difference equation Ω m + 1 = − 7 q 6 / ∏</...

We consider the problem of learning stochastic tree languages, i.e. probability distributions over a set of trees T (F), from a sample of trees independently drawn according to an unknown target P . We consider the case where the target is a rational stochastic tree language, i.e. it can be computed by a rational tree series or, equivalently, by a multiplicity tree automaton. In this paper, we ...

We provide arguments for the use of rational form unitarization, its relation with diffraction peak shrinkage and asymptotics inelastic cross-section. The particular problems Regge model exponential unitarization a factorized eikonal are discussed as well. A central role belongs to asymptotic amplitude factorization resulting from Mandelstam analyticity symmetry over scattering variables.