Possibilistic logic offers a qualitative frame­ work for representing pieces of information associated with levels of uncertainty or pri­ ority. The fusion of multiple sources infor­ mation is discussed in this setting. Differ­ ent classes of merging operators are consid­ ered including conjunctive, disjunctive, rein­ forcement, adaptive and averaging operators. Then we propose to analyse these...

We give a combinatorial description of the finitely generated free weak nilpotent minimum algebras, and provide explicit constructions of normal forms.

This paper examines the question of the extent to which it is true that any equilibrium that is quasi-perfect in any extensive form game having a given normal form is necessarily proper. If one fixes not only the equilibrium in question but also a sequence of completely mixed strategies converging to that equilibrium then indeed the notions are equivalent. However the stronger result is not tru...

A two-stage stochastic multiperiod LGDP (linear generalized disjunctive programming) model was developed to address the integrated design and production planning of multiproduct batch plants. Both problems are encompassed considering uncertainty in product demands represented by a set of scenarios. The design variables are modeled as here-and-now decisions which are made before the demand reali...

Let X = SpecA be a normal affine variety over an algebraically closed field k of characteristic 0 endowed with an effective action of a torus of dimension n. Let also ∂ be a homogeneous locally nilpotent derivation on the normal affine Zn-graded domain A, so that ∂ generates a k+-action on X. We provide a complete classification of pairs (X,∂) in two cases: for toric varieties (n = dimX) and in...