Boxer, Laurence(Universitat Politècnica de València, 2020-10-01)
[EN] We continue the work of [4, 2, 3], in which we discuss published assertions that are incorrect or incorrectly proven; that are severely limited or reduce to triviality; or that we improve upon.
Zhou, Xiangeng(Universitat Politècnica de València, 2020-10-01)
[EN] Let I be an ideal on N and f : X → Y be a mapping. f is said to be an I-quotient mapping provided f−1(U) is I-open in X, then U is I-open in Y . P is called an I-cs′-network of X if whenever {xn}n∈N is a sequence ...
Liu, Yang(Universitat Politècnica de València, 2020-10-01)
[EN] In this paper, we study the symmetry group of a type of composite topological links, such as 22m#22 . We have done a complete analysis on the elements of the symmetric group of this link and show the structure of the ...
Kharbhih, John Paul Jala; Dutta, Sanghita(Universitat Politècnica de València, 2020-10-01)
[EN] In this paper, we prove that the closure formula for ideals in C(X) under m topology holds in intermediate ring also, i.e. for any ideal I in an intermediate ring with m topology, its closure is the intersection of ...
Ali Akbar, Kamaludheen(Universitat Politècnica de València, 2020-10-01)
[EN] In this paper, we study the class of simple dynamical systems on R induced by continuous maps having finitely many non-ordinary points. We characterize this class using labeled digraphs and dynamically independent ...