Browsing by Author "Braniște, Marina"

Filter results by typing the first few letters
Now showing 1 - 5 of 5
  • Thumbnail Image
    Item
    ASUPRA INTERPRETĂRII GEOMETRICE A GRUPURILOR MINORE DE P -SIMETRIE CU FIGURI „INDEXATE”
    (CEP USM, 2008) Braniște, Marina; Lungu, Alexandru
    In the present paper is studied the problem of geometrical interpretation of junior, semijunior and pseudojunior groups of P -symmetry with „indexed” geometrical figures. Are determined the conditions in which one junior, semijunior and pseudojunior group of P -symmetry has or not geometrical interpretation. Is explained the methodology of construction of „indexed” geometrical figure, which interprets group gave. Are also constructed respectively „indexed”figures and analysed results.
  • Thumbnail Image
    Item
    ASUPRA PROPRIETĂŢILOR GRUPURILOR PSEUDOMINORE DE -SIMETRIE
    (CEP USM, 2010) Braniște, Marina; Lungu, Alexandru
    In the present paper there are studied, analyzed and described some properties of pseudo-minor groups of -symmetry: the general structure, the necessary and sufficient conditions for a certain group of a generalized symmetry in order to be pseudo-minor, one method of deriving.
  • Thumbnail Image
    Item
    STRUCTURA AUTOMORFISMELOR GRUPURILOR CRISTALOGRAFICE DE CATEGORIA G30
    (CEP USM, 2007) Lungu, Alexandru; Braniște, Marina
    In the present paper there are studied and described the concrete structure of the automorphisms of 3-dimensional crystallographic point groups.
  • Thumbnail Image
    Item
    STRUCTURA GENERALĂ A GRUPURILOR DISCRETE PSEUDOMINORE DE Wq -SIMETRIE
    (CEP USM, 2010) Braniște, Marina; Lungu, Alexandru
    In the present paper there are studied some properties of pseudo-minor groups of Wq -symmetry, are analyzed the necessary and sufficient conditions for a certain group of a generalized symmetry in order to be pseudo-minor, are described in general its subgroups.
  • Thumbnail Image
    Item
    UNELE ASPECTE ALE TEORIEI GENERALE A GRUPURILOR DISCRETE PSEUDOMINORE DE Wq -SIMETRIE
    (CEP USM, 2010) Lungu, Alexandru; Braniște, Marina
    In the present paper there are formulated and analyzed the necessary and sufficient conditions to describe the concrete structure every pseudo-minor group of Wq -symmetry, inferred from generating group G and initial defining group of permutation P .