Pełnotekstowe zasoby PLDML oraz innych baz dziedzinowych są już dostępne w nowej Bibliotece Nauki.
Zapraszamy na https://bibliotekanauki.pl
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 4

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
1
Content available remote

On the insertion of Darboux functions

100%
Maliszewski A.
Fundamenta Mathematicae
|
1998
|
tom 156
|
nr 3
197-209
EN
The main goal of this paper is to characterize the family of all functions f which satisfy the following condition: whenever g is a Darboux function and f < g on ℝ there is a Darboux function h such that f < h < g on ℝ.
2
Content available remote

Connectivity of diagonal products of Baire one functions

100%
Maliszewski A.
Fundamenta Mathematicae
|
1994-1995
|
tom 146
|
nr 1
21-29
EN
We characterize those Baire one functions f for which the diagonal product x → (f(x), g(x)) has a connected graph whenever g is approximately continuous or is a derivative.
3
Content available remote

Separating sets by Darboux-like functions

100%
Maliszewski A.
Fundamenta Mathematicae
|
2002
|
tom 175
|
nr 3
271-283
EN
We consider the following problem: Characterize the pairs ⟨A,B⟩ of subsets of ℝ which can be separated by a function from a given class, i.e., for which there exists a function f from that class such that f = 0 on A and f = 1 on B (the classical separation property) or f < 0 on A and f > 0 on B (a new separation property).
4
Content available remote

On multiplication in spaces of continuous functions

63%
Balcerzak M., Maliszewski A.
Colloquium Mathematicum
|
2011
|
tom 122
|
nr 2
247-253
EN
We introduce and examine the notion of dense weak openness. In particular we show that multiplication in C(X) is densely weakly open whenever X is an interval in ℝ.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.