For articles which have been accepted or published: details such as Math Review and Zentralblatt numbers, links to a journal copy or an arXiv preprint version, abstracts, and so forth, can be found by clicking on the titles of individual articles.
Here is an incomplete list of minor corrections to published papers (last updated 2011, will hopefully be updated later in 2021...)
Latest preprints
 An explicit minorant for the amenability constant of the Fourier algebra.
Preliminary version available at arXiv 2012.14413
Submitted for publication
 Approximately multiplicative maps between algebras of bounded operators on Banach spaces.
Coauthors: B. Horváth, N. J. Laustsen
arXiv 2110.04072, latest version posted October 2021. Submitted for publication.  Rigidity results for L^{p}operator algebras and applications.
Coauthors: E. Gardella, H. Thiel
arXiv 1909.03612, latest version posted September 2021. Submitted for publication.
Published
Papers are listed in reverse order of when they were written (approximately), rather than accepted or published. The list includes articles for which the "version of record" has appeared with an online DOI, even if an issue and page numbers have not yet been assigned.
 A short proof that B(L_{1}) is not amenable. Proc. Roy. Soc. Edinburgh Sect. A, 10 pages. Published online 6th November 2020.

Dual convolution for the affine group of the real line.
Complex Anal. Oper. Theory 15 (2021), no. 4, article 76 (32 pages).
Coauthor: M. Ghandehari  Constructing alternating 2cocycles on Fourier algebras. Adv. Math. 385 (2021) article 107747 (28 pages).

Unavoidable subprojections in unionclosed set systems of infinite breadth.
European J. Combin. 94 (2021), article 103311 (17 pages).
Coauthors: M. Ghandehari, H. L. Pham 
Stability of characters and filters for weighted semilattices.
Semigroup Forum 102 (2021), no. 1, 86–103.
Coauthors: M. Ghandehari, H. L. Pham  Triviality of the generalized Lau product associated to a Banach algebra homomorphism. Bull. Austral. Math. Soc. 94 (2016), no. 2, 286–289.
 Realization of compact spaces as cbHelson sets. Ann. Funct. Anal. 7 (2016), no. 1, 158–169.
 A gap theorem for the ZLamenability constant of a finite group. Int. J. Group Th. 5 (2016) no. 4, 27–46.

Weak amenability for Fourier algebras of 1connected nilpotent Lie groups.
J. Funct. Anal. 268 (2015) no. 8, 2440–2463.
Coauthor: M. Ghandehari  Directly finite algebras of pseudofunctions on locally compact groups. Glasgow Math. Journal 57 (2015) no. 3, 693–707.
 A nonseparable amenable operator algebra which is not isomorphic to a C*algebra.
Forum of Mathematics, Sigma, 2 (2014), e2 (12 pages).
Coauthors: I. Farah, N. Ozawa 
Extension of derivations, and Connesamenability of the enveloping dual Banach algebra.
Math. Scand. 117 (2015) no. 2, 258–303.
Coauthors: E. Samei, R. Stokke  Weak and cyclic amenability for Fourier algebras of connected Lie groups.
J. Funct. Anal. 266 (2014), no. 11, 6501–6530.
Coauthor: M. Ghandehari  Approximately multiplicative maps from weighted semilattice algebras. J. Austral. Math. Soc. 95 (2013), no. 1, 36–67
 Singly generated operator algebras satisfying weakened versions of amenability. In conference proceedings: published as Operator Theory: Advances and Applications, vol. 233 (2014), 33–44.
 ZLamenability constants of finite groups with two character degrees.
Canadian Math. Bull. 57 (2014), no. 3, 449–462.
Coauthors: M. Alaghmandan, E. Samei  ZLamenability and characters for the restricted direct products of finite groups.
J. Math. Anal. Appl. 411 (2014), no. 1, 314–328.
Coauthors: M. Alaghmandan, E. Samei  Quotients of Fourier algebras, and representations which are not completely bounded.
Proc. Amer. Math. Soc. 141 (2013), no. 7, 2379–2388.
Coauthor: E. Samei  On commutative, operator amenable subalgebras of finite von Neumann algebras. J. Reine. Angew. Math. 678 (2013), 201–222.
 Simplicial cohomology of band semigroup algebras.
Proc. Roy. Soc. Edinburgh Sect. A 142 (2012), no. 4, 715–744.
Coauthors: F. Gourdeau, M. C. White  Splitting maps and norm bounds for the cyclic cohomology of biflat Banach algebras. In conference proceedings of Banach Algebras 2009. Published as Banach Center Publ. 91 (2010), 105–121.
 Characterizing derivations from the disk algebra to its dual.
Proc. Amer. Math. Soc. 139 (2011), no. 3, 1073–1080.
Coauthor: M. J. Heath  Group representations with empty residual spectrum. Int. Eq. Op. Th. 67 (2010), no. 1, 95–107. Erratum: Int. Eq. Op. Th. 69 (2011), no. 1, 149–150.
 Approximate amenability of Schatten classes, Lipschitz algebras and second duals of Fourier algebras.
Q. J. Math. (Oxford) 62 (2011), no. 1, 39–58.
Coauthor: F. Ghahramani  Translationfinite sets and weakly compact derivations from l^{1}(Z_{+}) to its dual.
Bull. London Math. Soc. 42 (2010), no. 3, 429–440.
Coauthor: M. J. Heath  Uniform bounds for point cohomology of l^{1}(Z_{+}) and related algebras. J. Math. Anal. Appl. 358 (2009), no. 2, 249–260.
 Approximate and pseudoamenability of various classes of Banach algebras.
J. Funct. Anal. 256 (2009), no. 10, 3158–3191.
Coauthors: F. Ghahramani, Y. Zhang  Hochschild homology and cohomology of l^{1}(Z_{+}^{k}). Q. J. Math. (Oxford) 61 (2010), no. 1, 1–28.
 Simplicial cohomology of augmentation ideals in l^{1}(G) . Proc. Edinburgh Math. Soc. 53 (2010), no. 1, 97–109.
 Simplicial homology of strong semilattices of Banach algebras. Houston J. Math. 36 (2010), no. 1, 237–260.
 Injective convolution operators on l^{∞}(Γ) are surjective. Canadian Math. Bull. 53 (2010), no.3, 447452.
 Biflatness of l^{1}semilattice algebras. Semigroup Forum 75 (2007), no. 2, 253–271.
 Simplicial homology and Hochschild cohomology of Banach semilattice algebras. Glasgow Math. Journal 48 (2006), no. 2, 231–245.
(Reverse numbering in the list is implemented via CSS hacks as discussed here, here and here. Perhaps it's time to admit defeat and go back to tables...)
Editorial
 Surveys in Contemporary Mathematics (ed., with N. J. Young).
London Math. Soc. Lecture Notes 347 Cambridge University Press (Nov. 2007)
(Math Reviews: items reviewed individually)
Still in preparation
These are items where a final preprint has not been finished, but where the essential mathematics is in place. If you have heard me give a talk on something and cannot find a corresponding preprint, it may form part of one of the items in this list.
 Constructing nonAMNM weights for every semilattice of infinite breadth (provisional title)
Coauthors: M. Ghandehari, H. L. Pham  Completely almost periodic elements of Hopfvon Neumann algebras (very provisional title)
 Stability of multiplicative functionals on Fourier algebras (provisional title)
Coauthor: M. Daws  Weakly compact derivations from L^{1}(R_{+}) to its dual (provisional title)
Coauthor: T. V. Pedersen
Unpublished manuscripts
Here for reference:
 Semilattices with infinite breadth: structure theory and instability of filters.
Coauthors: M. Ghandehari, H. L. Pham
arXiv 1702.06266v2
The results announced in this unpublished work have since been split up for separate publication in three papers, each of which is an expansion of parts of this document. In one of these papers, the proof of the "subquotient" theorem in this document has been completely rewritten, using a more systematic use of the "subprojection" concept. 
A twisted inclusion between tensor products of operator spaces.
arXiv 1606.06287v2
Some material from the original version (2016) was removed and will be treated more fully in a separate article. The current version of the note is left on the arXiv as a historical record.  A note on some group C*algebras which are quasidirectly finite, (preliminary version).
arXiv 1003.1650
Material from this unpublished preprint was used in a later paper
Thesis
My PhD thesis (University of NewcastleuponTyne, 2006) was on Cohomology of commutative Banach algebras and l^{1} semigroup algebras. If you don't have convenient ILL access, you can download the whole thesis in PDF or gzipped PS format.
Overview/summary of contents
To follow (eventually). It may be worth pointing out that about half of the thesis, after chopping up and tying off loose ends, has been published or accepted for publication: see articles 4, 5 and 6 above. Some of the remaining material may be written up for publication at a future date; but, without further improvements on the remaining results, this is looking a little unlikely at present.
Errata
Like many people, I have a zeal for spotting typos in other people's work matched only by my (initial) blindness to them in my own writings. For sake of completeness, then, here is a list of errata for the thesis in PDF format (last updated 24th January 2009).