Jurinea khorassanica from northeast Iran is described as a new species. Based on morphological characters it belongs to

Jurinea sect. Stechmannia and its closest related taxa are the sympatric J. catharinae and J. ...

Onobrychis farimanensis is described as a new species and an identification key, illustrations and distribution map provided.

The new species is restricted to the north Zharf Mountains between Fariman and Torbat-e ...

Let R be a non-commutative ring and let C(R) be the center of R. The non-commuting

graph ΓR of R associated to R is defined as a graph with R\\C(R) as the vertices and two

distinct vertices x and y are joined whenever xy \\not=yx. We...

In this paper, we prove that every non-uniformly expanding transitive group (or

semigroup) action of C^1+α conformal local diffeomorphisms of a compact manifold

is ergodic with respect to the Lebesgue measure....

Let G be a group. By using the set of automorphisms of G, we associate a simple graph to G denoted by Aut(G)(G). In this paper we study some properties of this graph.

We apply the prescription proposed in hep-th/0307197 for non-abelian expansion of S-matrix elements, to the S-matrix element of four tachyons and one gauge field in superstring theory. We show that the leading order terms of the expansion...

The volatile matter of non-coking coal was used for the reduction of hematite in argon atmosphere at nonisothermal condition. A thermal gravimeter furnace enable to use an 80 mm-height crucible was designed for the experiments to measure the weight...