In this paper we show that the composition (symmetric difference) ofcycles is well-defined. So, such a collection {. . . , Ci, Ck, . . .} of cycles with a com-position operator,◦, is a matroid. As such, it has sets of ...

This article presents an algorithm, which by taking both goals scoredas well as matches played into account, is meant to provide “more sensible” topscorer lists in football. The algorithm computes Upper Hulls recursively ...

We give intrinsic characterizations of neural rings and homomorphismsbetween them. Also we introduce the notion of a basic monomial code map andcharacterize monomial code maps as compositions of basic monomial code ...

This paper summarizes and extends known results on qualitative behaviorof solutions of autonomous fractional differential systems with a time delay. Itutilizes two most common definitions of fractional derivative, ...

AV-pretopological space is a pair(X, a)whereXis a nonempty set andais aP(X)self map satisfyinga(∅) =∅,A⊆a(A)anda(A∪B) =a(A)∪a(B)foranyA, B∈ P(X). It is well known that the categoryTopof topological spaces isa reflective ...

Professor Eraldo Giuli, our colleague, friend and a distinguished member theeditorial board of Mathematics for Applications, turned 80 years of age on 12 March2020.