Articles by Author: Nurcan Arga Ccedil

Search results for Nurcan Arga Ccedil

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  1. Strong commutativity preserving generalized derivations on multilinear polynomials

    Strong commutativity preserving generalized derivations on multilinear polynomials

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    Let R be a non-commutative prime ring of characteristic different from 2, with right Utumi quotient ring U and extended centroid C and let F and G be generalized derivations of R such that F (x)G(y) − F (y)G(x) =...
  2. Differential susceptibility of commercial zucchini cultivars to viruses of cucurbits

    Differential susceptibility of commercial zucchini cultivars to viruses of cucurbits

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    A study to assess the effectiveness of some zucchini [Cucurbita pepo (L.)] cultivars in limiting the effects of virus disease in zucchini crops was conducted at Bayne's Drift, KwaZulu-Natal. The severity of disease was assessed using a visual rating scale...
  3. Spectral Properties, Including Spectral Singularities, of a Quadratic Pencil of Schrödinger Operators on the Whole Real Axis

    Spectral Properties, Including Spectral Singularities, of a Quadratic Pencil of Schrödinger Operators on the Whole Real Axis

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    We consider the Quadratic Pencil of Schr¨ odinger Operator L generated in L 2 (R) by the differential expression
  4. On the matrix versions of Appell hypergeometric functions

    On the matrix versions of Appell hypergeometric functions

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    The main aim of this paper is on Appell hypergeometric matrix functions. Also, matrix differential equations and integral representation satisfied F1 matrix function is derived.
  5. Short Notes

    Short Notes

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
  6. REVIEW

    REVIEW

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
  7. Biogeography on the eve of the twenty-first century: Towards an epistemology of biogeography

    Biogeography on the eve of the twenty-first century: Towards an epistemology of biogeography

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Vuilleumier, F. 1999. Biogeography on the eve of the twenty-first century: Towards an epistemology of biogeography. In: Adams, N.J. & Slotow, R.H. (eds) Proc. 22 Int. Ornithol. Congr., Durban. Ostrich 70 (1): 89–103.
  8. Estimating One's Own and Others' Multiple Intelligence: A Cross-Cultural Study from Guinea Bissau and Portugal

    Estimating One's Own and Others' Multiple Intelligence: A Cross-Cultural Study from Guinea Bissau and Portugal

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    This study examined the estimations of multiple intelligences for self, partner and parents. One hundred and fifty two students (males = 81, females = 68, and 3 have not indicated their sex; mean age = 24.02, SD = 3.08) from...
  9. Forgivingness: An Angolan-Portuguese Comparison

    Forgivingness: An Angolan-Portuguese Comparison

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    Forgiveness can be considered on multiple levels, from those interpersonal incidents that are contextualized to a dispositional trait form that transcends individual injustices. Three distinct aspects of forgivingness (dispositional forgiveness) have been recently put forward: (a) Lasting resentment; that is,...
  10. The Borsuk-Ulam theorem for surfaces

    The Borsuk-Ulam theorem for surfaces

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    Given a pair (S, T) whereS is a closed surface and T is a free Z 2 action on S, we classify which pairs have the property that the Borsuk-Ulam theorem holds with respect to R 2. In particular if...