نشریه علوم پایه
سال نوزدهم شماره 1 (1385)

In this paper, we introduce Kadec property in normed space and Lo-cally Uniformly Rotund space. Also, we present some spaces that admit this attribute. In second section, we prove a theorem that shows Locally Uniformly Rotund spaces admit Kadec property.At the end, we produce a norm on l1 space that admit Kadec property.

In this paper we review the bohr’s epistemological point of views and an attempt is made to give how the philosophers in nineteen century had influence on Bohr; not as a physicist or philosopher, but we essentially focus on him as a scientific person. We give an outlin of the Conpenhagen interpretation of Quantum theory resulting from his ideas, and then follow the outcomes of this interpretation on modern Physics.

Let G be a finite group and A is a normal subgroup of G. We denote by ncc (A) the number of conjugacy classes of A in G and A is called n-decomposable, if ncc (A)=n. Set KG =. Let X be a non-empty subset of positive integers. A group G is called X-decomposable, if KG = X.In this paper we characterize the {1, 3, 4} – decomposable finite non-perfect groups. We prove that such a group is isomorphic to Small Group (36, 9) the 9th group of order 36 in the small group library of GAP, a metabelian group of order, in which n is odd positive integer and is a Mersenne prime or a metabelian group of order, where and is a Mersenne prim.2000 mathematics Subject Classification: 20E34,20D10.

Liquid helium-II, The phase of he below the -point () displays the intriguing property of superfluidity, the capacity to flow without viscous resistance (e.g.Reppy and Depatie, 1964). Howerer, He-II is capable of viscous flow at the same time, which is showin by experiments using oscillating disks (Donnelly and Robert. 1974). vibrating wires (Tough, Mccormick and Dash, 1963) and rotating viscometers (Woods and Hallett, 1963). This unusual dual behviour and many of the other transport properties of He-II have been accunted for within the phenomenological two-fluid model, which was put forward by landau and london independentty. In this model liquid helium-II is considered to be compsed of two mutually interpenetrating fluids. each with its own density and, to a first approximation, its own independent velocity fried.

Reimannian and shock wave in linear magnetohydrodynamics phenomena have been studied in this paper. Temporal evolution of one-dimensional perturbation in Riemannian waves has studied and analyzed thoroughly. This analysis can be used to describe shock wave phenomena as well. The solutions have been obtained in non relativistic regine

Photochemic property of aziridine has been studied and it comparised with the propertics of the spiropyrans, naphtoxazine and spiroindoline.Substituted monocyclic and bicyclic aziridines are prepared and their trans and cis isomers are separated. UV, IR, and HNMR spectera have been recorded. Their photochromatic properties are tested in solid form, in alcohol and polymer solutions. We proved that aziridines change color with irradiation. Because C-C bond ring is broken. If monocyclic aziridines in crystalline form, in polymer conditions or alcohol solutions do not change color at room temperature, because they lose color instantly. When the temperature drops to 77 K we are able to see the change of color