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pro vyhledávání: '"Ewa, Graczyńska"'
Autor:
Ewa Graczyńska
Publikováno v:
Natural Science. :124-129
We present some possible application of ALICE in the context of a possible attraction of pupils (especially girls) in early programming course. Our examples presented in the paper are fully explained on the base of [1].
Autor:
Ewa Graczyńska, Dietmar Schweigert
Publikováno v:
Demonstratio Mathematica. 39:33-42
Autor:
Ewa Graczyńska, Dietmar Schweigert
Publikováno v:
Algebra Universalis. 50:129-139
We consider the lower part of the lattice of varieties of semigroups. We present finite bases of hybrid identities for the varieties of normal bands, commutative bands and abelian groups of finite exponent. The variety A n,0 of abelian groups provide
Autor:
Ewa Graczyńska
Publikováno v:
Algebra Universalis. 27:387-397
We deal with two kinds of special identities: normal and regular, considered by Mel'nik, Plonka and other authors. We point out fundamental properties of these identities. Also in §2 we show that the lattice of all subvarieties of the variety define
Autor:
Dietmar Schweigert, Ewa Graczyńska
Publikováno v:
Algebra Universalis. 27:305-318
In this paper we consider the notions of hyperidentities and hypervarieties of a given type τ, without nullary operations, originated by J. Aczel [1], V. D. Belousov [2], W. D. Neumann [12] and W. Taylor [21]. Solid varieties are defined. Their equa
Autor:
Agnieszka, Nowosielska, Jacek, Robaszkiewicz, Ewa, Graczyńska, Wojciech, Czarnecki, Andrzej, Stankiewicz
Publikováno v:
Klinika oczna. 105(6)
To establish the influence of posterior vitreous detachment on development and resolution of diabetic macular edema in NIDDM. To asses the posterior vitreous detachment role in argon laser treatment of diabetic macular edema.Retrospective study.68 ey
Autor:
Agnieszka, Nowosielska, Jacek, Robaszkiewicz, Ewa, Graczyńska, Wojciech, Czarnecki, Andrzej, Stankiewicz
Publikováno v:
Klinika oczna. 105(6)
Macular edema remains one of the important therapeutic issues. Vitero-macular tractions are said, to be the cause of persistent, non responding to laser treatment diabetic macular edema. Surgical removal of these tractions is used in treatment of non
Autor:
Dietmar Schweigert, Ewa Graczyńska
Publikováno v:
Discussiones Mathematicae - General Algebra and Applications. 27:35
We invent the notion of a {\it dimension of a variety} $V$ as the cardinality of all its proper {\it derived} subvarieties (of the same type). The dimensions of varieties of lattices, varieties of regular bands and other general algebraic structures
Autor:
Andrzej Wroński, Ewa Graczyńska
Publikováno v:
Colloquium Mathematicum. 40:1-8
The concept of Agassiz system of algebras and Agassiz sum was introduced by G. Gratzer and J. Sichler in [3]. In this paper we intend to discuss a modification of the concepts above which seems to be more advantageous. Our notation and nomenclature i
Autor:
Ewa Graczyńska
Publikováno v:
Algebra Universalis. 17:369-375