and Applied Analysis 3 Definition 2.7. Let X,F, t be a Menger space, and let T : X → X be a selfmapping. For each p ∈ X, x > 0 and n ∈ N, let M ( p, x, n ) min { FTkp,Tlp x : k, l ≤ n and k, l ∈ Z } , M1 ( p, x, n ) min { FTkp,Tlp x : k, l ≤ n and k, l ∈ N } , M2 ( p, x, n ) min { Fp,Tlp x : l ≤ n and l ∈ N } , O ( p, n ) { Tp : k ≤ n and k ∈ Z } , O ( p,∞ { Tp : k ∈ Z } , 2.3 where it is under...

It is shown that for every triple of integers (α, β, γ) such that α ≥ 1, β ≥ 1, and γ ≥ 2, there is a homogeneous, non-bihomogeneous continuum whose every point has a neighborhood homeomorphic the Cartesian product of Menger compacta μ ×μ × μ . In particular, there is a homogeneous, non-bihomogeneous, Peano continuum of covering dimension four.

Considering the increasing interest in fuzzy theory and possible applications, the concept of fuzzy metric space concept has been introduced by several authors from different perspectives. This paper interprets the theory in terms of metrics evaluated on fuzzy numbers and defines a strong Hausdorff topology. We study interrelationships between this theory and other fuzzy theories such as intuit...

We study subgroups of Z which possess group theoretic properties analogous to properties introduced by Menger (1924), Hurewicz (1925), Rothberger (1938), and Scheepers (1996). We obtain purely combinatorial characterizations of these properties, and combine them with other techniques to solve several questions of Babinkostova, Kočinac, and Scheepers. We also show that, while the Menger Conjectu...

I Let Tn be the set of congruence classes of simplices in Euclidean space E . The set Tn is an open manifold (also a semi-algebraic set) of dimension (n + 1)n/2. Coincidentally, a simplexT ∈ Tn is determined by the (n+1)n/2 lengths of its edges. Furthermore, the square of the volume of T ∈ Tn is a polynomial in the squares of the edgelengths. This polynomial is given by the Cayley-Me...

In practical applications of ranging technology commonly used in wireless sensor positioning algorithm, ranging between nodes will inevitably produce errors due to environmental factors and measurement hardware effects. The wireless sensor network localization algorithm DGC-TWCL proposed in this paper takes advantage of the Cayley-Menger determinant used to provide distance geometry constraints...