Volume 29, Issue 3

 

ارسال های اخیر

  • ON THE MOMENTS OF LKD 

    BAZARGAN-LARI, A (Springer, 2005-12-01)
    The mean and variance of the Lagrangian Katz family of distribution (LKD), the basicLagrangian Katz distribution of Type I (LKD-I) and Type II (LKD-II) are provided in an easy method.The recurrence relation between the ...

  • CONFORMAL VECTOR FIELDS ON TANGENT BUNDLE OF A RIEMANNIAN MANIFOLD 

    HEDAYATIAN, S.؛ BIDABAD, B. (Springer, 2005-12-01)
    Let M be an n-dimensional Riemannian manifold and TM its tangent bundle. Theconformal and fiber preserving vector fields on TM have well-known physical interpretations and havebeen studied by physicists and geometricians. ...

  • THE STRUCTURE OF (α,β)-DERIVATIONS OF TRIANGULAR RINGS 

    GHOSSEIRI, M. N. (Springer, 2005-12-01)
    Let R and S be reduced rings with identities whose idempotents are central, and let M be an(R, S)-bimodule such that annr (M)=0. In this paper, we determine first the structure of automorphisms ofthe triangular ring, ...

  • ON THE INTEGRAL INVARIANTS OF KINEMATICALLY GENERATED RULED SURFACES 

    KARADAG, H. B.؛ KELES, S. (Springer, 2005-12-01)
    In this paper, the dual area vector of a closed dual spherical curve is kinematically generatedand the dual Steineer vector of a motion are extensively studied by the methods of differential geometry.Jacobi's Theorems, ...

  • TRANSFORMATION SEMIGROUPS AND EXACT SEQUENCES 

    AYATOLLAH ZADEH SHIRAZI, F. (Springer, 2005-12-01)
    This text carries out some ideas about exact and P− exact sequences of transformationsemigroups. Some theorems like the short five lemma (Lemma 1.3 and Lemma 2.3) are valid here as inexact sequences of R − modules.

  • AIR POLLUTION ASSESSMENT IN SHIRAZ BY PASSIVE SAMPLING TECHNIQUES 

    HADAD, K.؛ SAFAVI, A.؛ TAHON, R. (Springer, 2005-12-01)
    The air quality in Shiraz was assessed based on a one-week passive sampling campaign.During the first week of the summer 2003, about 400 passive samplers were used in groups of two andthree, so that 187 sampling stations ...

  • INSTABILITY OF SOLUTIONS OF CERTAIN NONLINEAR VECTOR DIFFERENTIAL EQUATIONS OF ORDER SEVEN 

    TUNC, C.؛ TUNC, E. (Springer, 2005-12-01)
    Sufficient conditions are established under which the zero solution X = 0 of equation (2) isunstable.

  • EXTREMAL ORDERS INSIDE SIMPLE ARTINIAN RINGS 

    HALIMI, N. H. (Springer, 2005-12-01)
    The aim of this paper is to study orders over a valuation ring V with arbitrary rank in acentral simple F-algebra Q. The relation between all of the orders is explained with a diagram. It is thenshown that inside Bezout ...

  • USING FUZZY KNOWLEDGE OF A NUISANCE PARAMETER FOR HYPOTHESIS TESTING 

    BEHBOODIAN, J.؛ MOHAMMADPOUR, A. (Springer, 2005-12-01)
    The problem of hypothesis testing with a nuisance parameter is considered. Two methods forusing fuzzy knowledge on the nuisance parameter to test hypotheses are suggested. These methods areneither a pure classical nor a ...

  • INFORMATION MATRIX FOR A MIXTURE OF TWO PARETO DISTRIBUTIONS 

    NADARAJAH, S.؛ KOTZ, S. (Springer, 2005-12-01)
    The Fisher information matrix for a mixture of two Pareto distributions is derived. Numericaltabulations of the matrix are also provided for practical purposes. The work is motivated by a real-lifeexample.

  • ON THE INVESTIGATION OF SPARK FORMATION CONDITIONS AND ENERGY GAIN IN INERTIAL CONFINEMENT FUSION 

    GHASEMIZAD, A.؛ ESKANDARI, M. R.؛ KHOSHBINFAR, S.؛ KAMRAN, M. (Springer, 2005-12-01)
    In isobaric models for inertial confinement fusion it is assumed that the target configurationat stagnation time (maximum compression) consists of two regions, hot spark and cold fuel, respectively.Here the conditions of ...

  • ON GENERAL RELATIVELY ISOTROPIC L-CURVATURE FINSLER METRICS 

    NAJAFI, B.؛ TAYEBI, A.؛ REZAII, M. M. (Springer, 2005-12-01)
    In this paper the general relatively isotropic L -curvature Finsler metrics are studied. It isshown that on constant relatively Landsberg spaces, the concepts of weakly Landsbergian, Landsbergianand generalized Landsbergian ...

  • ANGULAR DEPENDENT MAGNETORESISTANCE OSCILLATION IN STAGE-2 IBr GRAPHITE INTERCALATION COMPOUND 

    BARATI, M.؛ UMMAT, P. K.؛ LUKE, G.؛ DATARS, W. R. (Springer, 2005-12-01)
    The angular dependent magnetoresistance oscillation (ADMRO) of the stage-2 IBr graphiteintercalation compound (GIC) was studied between 1.8 K and 110 K in magnetic fields between 1 and 9T. There was a series of peaks in ...

  • ELECTRON ACCELERATION AND EXCITATION PROCESSES IN THE VICINITY OF A MERCURY DISCHARGE CONSTRICTION 

    FAZLIAN, S.؛ SOBHANIAN, S.؛ MURADOV, A. (Springer, 2005-12-01)
    In the present paper axial distributions of plasma and floating potentials, electron and iondensities and EEDF have been measured in the DL region of a Hg discharge constriction. An attempt hasbeen made for the resolution ...