The semigroup of ultrafilters near 0
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Publication:1300535
DOI10.1007/S002339900031zbMath0942.22003OpenAlexW1967413486MaRDI QIDQ1300535
Publication date: 10 May 2000
Published in: Semigroup Forum (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1007/s002339900031
idempotentRamsey theoryStone-Čech compactificationsmallest idealdense subsemigroupcentral set near \(0\)collectionwise piecewise syndetic family near \(0\)piecewise syndetic set near \(0\)semigroup of ultrafilterssubsemigroup of \(\beta S\)
Related Items (25)
ON SOFT ULTRAFILTERS ⋮ The closure of the smallest ideal of an ultrafilter semigroup ⋮ Polynomial central set theorem near zero ⋮ Combined algebraic properties of \(C^\ast\)-sets near zero ⋮ Large sets near idempotent and its product ⋮ Central sets theorem near of an idempotent in wap-compactification ⋮ New classes of infinite image partition regular matrices near zero ⋮ Force recurrence near zero ⋮ Dynamical notions along filters ⋮ Combined algebraic properties of IP\(^\star\) and central\(^\star\) sets near 0 ⋮ Dynamics near an idempotent ⋮ \(D\)-sets in arbitrary semigroup ⋮ Central sets theorem near zero ⋮ Some new results about the ubiquitous semigroup $\mathbb H$ ⋮ Dynamical characterizations of combinatorially rich sets near zero ⋮ Central sets theorem near zero ⋮ The semigroup of ultrafilters near an idempotent of a semitopological semigroup ⋮ A history of central sets ⋮ Partition regularity of polynomial systems near zero ⋮ Dynamical characterization of central sets along filter ⋮ Monochromatic sums equal to products near zero ⋮ Image partition regularity near zero ⋮ Density near zero ⋮ Applications of the Hales-Jewett theorem near zero ⋮ Unnamed Item
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