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♣-like principles under CH

100%

Just W.

Fundamenta Mathematicae

2001

tom 170

nr 3

247-256

Some relatives of the Juhász Club Principle are introduced and studied in the presence of CH. In particular, it is shown that a slight strengthening of this principle implies the existence of a Suslin tree in the presence of CH.

On matrix rapid filters

63%

Just W., Vojtáš P.

Fundamenta Mathematicae

1997

tom 154

nr 2

177-182

Galois-Tukey equivalence between matrix summability and absolute convergence of series is shown and an alternative characterization of rapid ultrafilters on ω is derived.

The space $(ω)^{n+1}$ is not always a continuous image of $(ω)^n$

44%

Just W.

Fundamenta Mathematicae

1989

tom 132

nr 1

59-72

Ograniczanie wyników

3 Fundamenta Mathematicae

3 Just W.

1 Vojtáš P.

1 2001

1 1997

1 1989

Wyniki wyszukiwania

♣-like principles under CH

On matrix rapid filters

The space $(ω)^{n+1}$ is not always a continuous image of $(ω)^n$

Ograniczanie wyników

3 Fundamenta Mathematicae

3 Just W.

1 Vojtáš P.

1 2001

1 1997

1 1989

Wyniki wyszukiwania

♣-like principles under CH

On matrix rapid filters

The space $(ω*)^{n+1}$ is not always a continuous image of $(ω*)^n$

The space $(ω)^{n+1}$ is not always a continuous image of $(ω)^n$