مرور Volume 30, Issue 3 بر اساس عنوان

در حال نمایش موارد 1 - 12 از 12

  • BRAIDING FROM 2-GROUPS TO 2-GROUPOIDS 

    ULUALAN, E. (Springer, 2006-12-01)
    We give the concept of ‘braiding' for 2-groupoids, and we show that this structure is equivalent tobraided regular, crossed modules.

  • COMPACT HYPERSURFACES IN EUCLIDEAN SPACE AND SOME INEQUALITIES 

    BEKTAS, M.؛ ERGUT, M. (Springer, 2006-12-01)
    Let (M,g ) be a compact immersed hypersurface of (Rn+1,) , λ1 the first nonzeroeigenvalue, α the mean curvature, ρ the support function, A the shape operator, vol (M ) the volume of M,and S the scalar curvature of M. In ...

  • DUAL SPLIT QUATERNIONS AND SCREW MOTION IN MINKOWSKI 3-SPACE 

    KULA, L؛ YAYLI, Y. (Springer, 2006-12-01)
    In this paper, two new Hamilton operators are defined and the algebra of dual split quaternions isdeveloped using these operators. It is shown that finite screw motions in Minkowski 3-space can be expressedby dual-number ...

  • EXISTENCE OF THREE SOLUTIONS FOR THE DIRICHLET PROBLEM INVOLVING THE P-LAPLACIAN AND MINIMAX INEQUALITY FOR RELEVANT FUNCTIONALS 

    AFROUZI, G. A.؛ HEIDARKHANI, S. (Springer, 2006-12-01)
    In this paper, we establish some results on the existence of at least three weak solutions for aDirichlet problem involving p-Laplacian using a variational approach.

  • FUZZY β −IRRESOLUTE FUNCTIONS AND FUZZY β −COMPACT SPACES IN FUZZIFYING TOPOLOGY 

    SAYED, O. R.؛ AZAB ABD-ALLAH, M. (Springer, 2006-12-01)
    In this paper the concepts of fuzzifying β − irresolute functions and fuzzifying β − compactspaces are characterized in terms of fuzzifying β − open sets and some of their properties are discussed.

  • NETWORK OPTIMIZATION WITH PIECEWISE LINEAR CONVEX COSTS 

    KETABI, S. (Springer, 2006-12-01)
    The problem of finding the minimum cost multi-commodity flow in an undirected and completenetwork is studied when the link costs are piecewise linear and convex. The arc-path model and overflowmodel are presented to formulate ...

  • NUMERICAL SOLUTION OF THIRD-ORDER BOUNDARY VALUE PROBLEMS 

    LOGHMANI, G. B.؛ AHMADINIA, M. (Springer, 2006-12-01)
    In this paper, we use a third degree B-spline function to construct an approximate solution forthird order linear and nonlinear boundary value problems coupled with the least square method. Severalexamples are given to ...

  • ON PROBLEMS REDUCED TO THE GOURSAT PROBLEM FOR A THIRD ORDER EQUATION 

    MAHER, A.؛ UTKINA, YE. A. (Springer, 2006-12-01)
    The aim of the present paper is the investigation of some problems which can be reduced to theGoursat problem for a third order equation. Some results and theorems are given concerning the existence anduniqunce for solving ...

  • REGRESSION ANALYSIS IN MARKOV CHAIN 

    ALAMUTI, A. Y.؛ MESHKANI, R. (Springer, 2006-12-01)
    In a finite stationary Markov chain, transition probabilities may depend on some explanatoryvariables. A similar problem has been considered here. The corresponding posteriors are derived andinferences are done using these ...

  • SOME MAXIMAL INEQUALITIES FOR RANDOM VARIABLES AND APPLICATIONS 

    AMINI, M.؛ BOZORGNIA, A. (Springer, 2006-12-01)
    In this paper, we extend some famous maximal inequalities and obtain strong laws of largenumbers for arbitrary random variables by use of these inequalities and martingale techniques.

  • TEMPERATURE DEPENDENCE OF PHASE TRANSFORMATION PRESSURE IN SILICON 

    SALEHPOUR, B.؛ OMIDFAR, M. (Springer, 2006-12-01)
    In this experimental work the pressure induced phase transformation of silicon and Germaniumhas been studied. It was shown that at a particular value of applied pressure, (Pt), depending on the sampletemperature, the ...

  • TOPOLOGICAL RING-GROUPOIDS AND LIFTINGS 

    FATIH OZCAN, A.؛ ICEN, I.؛ HABIL GURSOY, M. (Springer, 2006-12-01)
    We prove that the set of homotopy classes of the paths in a topological ring is a topological ringobject (called topological ring-groupoid). Let p : X􀀄 → X be a covering map and let X be a topological ring.We define a ...