Abstract The purpose of this paper is to show that, by combining Feshbach resonances with external confining potentials, the energy scale factor neighboring Efimov states can be tremendously reduced. conditions reached for systems made three different particles. For case two identical light particles and a heavy particle, reduced many orders magnitude, are in way more easily reachable experimen...

Conventional data envelopment analysis (DEA) models normally assume all inputs and outputs are real valued and continuous. However in problems some inputs and outputs can only take integer values, also, both desirable and undesirable outputs can be generated . In this paper the effect of undesirable outputs in integer DEA model is discussed. The proposed model distinguishes weak disposability o...

a non-abelian finite group is called sequenceable if for some positive integer , is -generated ( ) and there exist integers such that every element of is a term of the -step generalized fibonacci sequence , , , . a remarkable application of this definition may be find on the study of random covers in the cryptography. the 2-step generalized sequences for the dihedral groups studied for their pe...

Considering uniform hypergraphs, we prove that for every non-negative integer h there exist two non-negative integers k and t with k ≤ t such that two h-uniform hypergraphs H and H′ on the same set V of vertices, with ∣V ∣ ≥ t, are equal up to complementation whenever H and H′ are k-hypomorphic up to complementation. Let s(h) be the least integer k such that the conclusion above holds and let v...