Yemon Choi

most citedBiflatness of

ℓ^{1}

-semilattice algebras

13 citations · 14 across the 3 of their papers we have counts for

collaborators

3 papers

math.FA2008

Uniform bounds for point cohomology of $ℓ^{1} (Z_{+})$ and related algebras

Yemon Choi

It is well-known that the point cohomology of the convolution algebra $ℓ^{1} (Z_{+})$ vanishes in degrees 2 and above. We sharpen this result by obtaining splitting maps wh…

math.FA2006★ 1 cited

Simplicial homology and Hochschild cohomology of Banach semilattice algebras

Yemon Choi

The $ℓ^{1}$ -convolution algebra of a semilattice is known to have trivial cohom ology in degrees 1,2 and 3 whenever the coefficient bimodule is symmetric. We ex tend this result…

math.FA2006★ 13 cited

Biflatness of $ℓ^{1}$ -semilattice algebras

Yemon Choi

Building on an old result of Duncan and Namioka, we show that the $ℓ^{1}$ -convolution algebra of a semilattice $S$ is biflat precisely when $S$ is uniformly locally finite. The…

Uniform bounds for point cohomology of ℓ1(Z+​) and related algebras

Simplicial homology and Hochschild cohomology of Banach semilattice algebras

Biflatness of ℓ1-semilattice algebras

Uniform bounds for point cohomology of $ℓ^{1} (Z_{+})$ and related algebras

Biflatness of $ℓ^{1}$ -semilattice algebras