abstract background: we aimed to describe morphological and morphometrical characteristics of fasciola spp. in livestock from ardabil province, northwest iran. methods: forty adult flukes were collected from different definitive hosts (cattle and sheep). previously specimens were identified as f. hepatica or f. gigantica based on pcr-rflp of the its-1 region with rsai enzyme.  we identified fas...

In this paper, we show that the metric space (Q,G) is a positivelycurved space (PC-space) in the sense of Alexandrov. We also discuss some issues like metric tangent cone and exponential map of (Q, G). Then we give a stratification of this metric space according to the signature of points in Q. Some properties of this stratification are shown. The second part of this paper is devoted to some ba...

In this paper, we show that the metric space (Q,G) is a positivelycurved space (PC-space) in the sense of Alexandrov. We also discuss some issues like metric tangent cone and exponential map of (Q, G). Then we give a decomposition of this metric space according to the signature of points in Q. Some properties of this decomposition are shown. The second part of this paper is devoted to some basi...

In this paper, we unify, extend and generalize some results on coupled fixed point theorems of generalized φ- mappings with some applications to fixed points of integral type mappings in cone metric spaces.  

In this paper, several fixed point theorems for T-contraction of two maps on cone metric spaces under normality condition are proved. Obtained results extend and generalize well-known comparable results in the literature.

in the present paper, we give a new approach to caristi's fixed pointtheorem on non-archimedean fuzzy metric spaces. for this we define anordinary metric $d$ using the non-archimedean fuzzy metric $m$ on a nonemptyset $x$ and we establish some relationship between $(x,d)$ and $(x,m,ast )$%. hence, we prove our result by considering the original caristi's fixedpoint theorem.

The main purpose of this paper is to obtain sufficient conditions for existence of points of coincidence and common fixed points for a pair of self mappings satisfying some expansive type conditions in $b$-metric spaces. Finally, we investigate that the equivalence of one of these results in the context of cone $b$-metric spaces cannot be obtained by the techniques using scalarization function....

Abstract In this manuscript, we investigate the existence and uniqueness of a common fixed point for self-mappings defined on quasi-cone metric space over divisible Banach algebra via an auxiliary mapping ϕ .

The idea of probabilistic metric space was introduced by Menger and he showed that probabilistic metric spaces are generalizations of metric spaces. Thus, in this paper, we prove some of the important features and theorems and conclusions that are found in metric spaces. At the beginning of this paper, the distance distribution functions are proposed. These functions are essential in defining p...

Dirac spinors play crucial role in modern particle physics. However, this crucial application of Dirac spinors is based mostly on the special relativity, where the base manifold M is the flat Minkowski space. Passing to the general relativity, we get a little bit more complicated theory of spinors. LetM be a space-time manifold of the general relativity. It is a four-dimensional orientable mani...