Temat: Retraction - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A retract principle on discrete time scales
Autorzy:: Diblik, J.
Ruzickova, M.
Vaclavikova, B.
Powiązania:: https://bibliotekanauki.pl/articles/255911.pdf
Data publikacji:: 2006
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: discrete equation
discrete time scale
asymptotic behavior of solution
retract
retraction
Opis:: In this paper we discuss asymptotic behavior of solutions of a class of scalar discrete equations on discrete real time scales. A powerful tool for the investigation of various qualitative problems in the theory of ordinary differential equations as well as delayed differential equations is the retraction method. The development of this method is discussed in the case of the equation mentioned above. Conditions for the existence of a solution with its graph remaining in a predefined set are formulated. Examples are given to illustrate the results obtained.
Źródło:: Opuscula Mathematica; 2006, 26, 3; 445-455
1232-9274
2300-6919
Pojawia się w:: Opuscula Mathematica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Retracts and Q-independence
Autorzy:: Chwastyk, Anna
Powiązania:: https://bibliotekanauki.pl/articles/728880.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:: general algebra
term function
Q-independence
M, I, S, S₀, A₁, G-independence
t-independence
retraction
retract
Stone algebra
skeleton and set of dense element of Stone algebra
Glivenko congruence
Opis:: A non-empty set X of a carrier A of an algebra A is called Q-independent if the equality of two term functions f and g of the algebra A on any finite system of elements a₁,a₂,...,aₙ of X implies f(p(a₁),p(a₂),...,p(aₙ)) = g(p(a₁),p(a₂),...,p(aₙ)) for any mapping p ∈ Q. An algebra B is a retract of A if B is the image of a retraction (i.e. of an idempotent endomorphism of B). We investigate Q-independent subsets of algebras which have a retraction in their set of term functions.
Źródło:: Discussiones Mathematicae - General Algebra and Applications; 2007, 27, 2; 235-243
1509-9415
Pojawia się w:: Discussiones Mathematicae - General Algebra and Applications
Dostawca treści:: Biblioteka Nauki

Artykuł

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