Fernández, Manuel; Tkachenko, Mikhail G.(Editorial Universitat Politècnica de València, 2014-10-01)
[EN] It is shown that if all countable subgroups of a semitopological group G are precompact, then G is also precompact and that the closure of an arbitrary subgroup of G is again a subgroup. We present a general method ...
Ursul, Mihail; Tripe, Adela(Editorial Universitat Politècnica de València, 2014-10-01)
[EN] We construct in this article three radicals in the class of compact right topological rings. We prove also that a simple left Noetherian compact right topological ring is finite.
Corbacho Cortés, Eduardo(Editorial Universitat Politècnica de València, 2014-10-01)
[EN] The RAFU method is an original and unknown approximation procedure we can use in Approximation Theory. We know that the RAFU method provides a linear space uniformly dense in C[a,b] by using some separation conditions. ...
Li, Ji; Peters, T. J.; Jordan, K. E.(Editorial Universitat Politècnica de València, 2014-10-01)
[EN] The preservation of ambient isotopic equivalence under piecewise linear (PL) approximation for smooth knots are prominent in molecular modeling and simulation. Sufficient conditions are given regarding:Hausdorff ...
Alaste, Tomi Matias(Editorial Universitat Politècnica de València, 2014-10-01)
[EN] Let F be a lattice of real-valued functions on a non-empty set X such that F contains the constant functions. Using certain filters on X determined by F, we construct a compact Hausdorff topological space δX with the ...