Steve Lack

Here is a list of talks given by Steve Lack at the Australian Category Seminar. Click on the title of a talk for an abstract.

Normal isofibrations, split idempotents, and 2-categorical infinity-cosmoi – 20 April 2022
Polynomials, biproducts, and wreaths – 7 October 2020
Ambrose-Palais-Singer theorem for tangent categories (part 2) – 14 August 2019
Ambrose-Palais-Singer theorem for tangent categories (part 1) – 31 July 2019
Sketching quasivarieties – 29 May 2019
Weak adjoint functor theorems – 17 April 2019
Hopf structures, hyperplanes, and bands – 13 February 2019
Internal homs of monads – 9 May 2018
Legitimizing operadic categories – 28 March 2018
Species, convolution, and bimonoidal structure – 14 February 2018
Cobraidings for monoidal comonads – 27 September 2017
Combinatorial models for associahedra – 17 May 2017
Coherence for skew monoidal categories, revisited – 8 March 2017
Braidings on skew monoidal categories – 1 February 2017
Universal properties of slice constructions – 31 August 2016
(Generalized) operadic categories, skew monoidal categories, and comprehensive factorization – 17 August 2016
Du Pareigis – 13 July 2016
A microcosm for opmonoidal monads – 22 June 2016
An example of skew reflection involving representations of bialgebroids – 3 February 2016
Pseudo-commutativity d'apres Bourke – 5 August 2015
Hochschild cohomology and paracyclic structures (part 2) – 22 July 2015
Hochschild cohomology and paracyclic structures (part 1) – 15 July 2015
Another Catalan simplicial set – 22 April 2015
Skew collages – 8 April 2015
The Catalan simplicial set strikes again – 25 March 2015
Multiplier bialgebras in braided monoidal categories – 22 October 2014
Further skew aspects of operads – 23 April 2014
Skew aspects of operads – 2 April 2014
Combinatorial categorical equivalences – 12 February 2014
Torsion-free subcategories of semiabelian categories (part 2) – 27 November 2013
Torsion-free subcategories of semiabelian categories – 20 November 2013
Quantum matrices and *-autonomy – 16 October 2013
Right normalization of skew monoidal categories, with applications to monads – 7 August 2013
The no-iteration approach to monads, and its bicategorical and skew variants – 31 July 2013
Quasialgebraic aspects of topology – 5 June 2013
The Catalan simplicial set – 27 March 2013
Coherence for skew monoidal categories – 27 February 2013
Coherence for skew monoidal categories: first steps – 7 November 2012
Recognizing lax morphism classifiers – 19 September 2012
Two constructions in Morita theory – 15 August 2012
A simplicial approach to skewing (part 2) – 1 August 2012
A simplicial approach to skewing (part 1) – 11 July 2012
Skew Eckmann-Hilton – 4 July 2012
The skew approach to quantum categories – 6 June 2012
The relational approach to exactness conditions – 23 May 2012
Induced representations, décalage and comprehensive factorisation – 16 November 2011
Induced representations, exactness, and Hopf monads – 2 November 2011
Homology and homotopy for symmetric cat-groups – 19 October 2011
Grothendieck quasitoposes – 1 June 2011
Embedding theorems for adhesive and quasiadhesive categories – 18 May 2011
Tensor products of chain complexes and the Dold-Kan correspondence – 27 October 2010
The 2-category of weak distributive laws – 22 September 2010
Weakly Locally Presentable 2-Categories – 8 September 2010
Accessibitly and purity in enriched and unenriched contexts – 25 August 2010
Theories, theories, and theories – 4 August 2010
Playing with ordinals – 2 June 2010
Presentations for monads – 19 May 2010
Strictification – 5 May 2010
Yet another approach to modules over a bialgebra – 21 April 2010
Non-canonical isomorphisms – 2 December 2009
Normality, separability, and weakness – 21 October 2009
Enriched weakness II – 7 October 2009
Enriched weakness – 30 September 2009
Multicategories, hom-multicategories, and more – 13 May 2009
Opmonoidal monads – 6 May 2009
Return to weak world – 15 April 2009
Weak world – 1 April 2009
Gray-categories, Gray-groupoids, and homotopy 3-types – 25 March 2009
A Quillen model structure for Gray-categories – 11 March 2009
Multitudes of trees – 8 October 2008
How to smash trees – 24 September 2008
Clubs, wreaths, and ordinals – 3 September 2008
Limits for weak morphisms III – 11 June 2008
Limits for weak morphisms II – 4 June 2008
Limits for weak morphisms – 21 May 2008
Free monoids – 13 February 2008
Density presentations – 4 April 2007
Notions of Lawvere theory – 28 February 2007
Bicat is not triequivalent to Gray – 13 December 2006
Homotopy-theoretic aspects of 2-monads – 9 August 2006
More on 2-nerves – 12 April 2006
2-nerves of bicategories – 15 March 2006
Stricts, costricts, and icons – 1 March 2006
Centres and derivations – 15 February 2006
Enrichment through partiality – 14 December 2005
Dold-Kan, internal categories, and polyads – 9 November 2005
Comonads, restriction categories, and generalized partial maps – 29 June 2005
Traces, duals, and composition – 16 March 2005
Comonads, corings, and collages – 9 February 2005
Colimit completions, flat functors, and connected G-sets – 17 November 2004
Quasiadhesive categories – 10 November 2004
Lax morphisms, oplax limits, and double categories – 27 October 2004
Restriction theories – 1 September 2004
Twisted modules and crossed braidings – 18 August 2004
Report on CT04 – 28 July 2004
Pure-braided monoidal categories – 12 May 2004
Pure ribbons and reversible operads – 21 April 2004
Finite limit structures in monoidal categories – 26 November 2003
More on internal categories in the operadic context – 19 November 2003
Internal categories in the protomodular and operadic contexts – 29 October 2003
Van Kampen squares and adhesive categories – 8 October 2003
Operads, algebras, modules, and crossed modules – 10 September 2003
Composing PROPs – 13 August 2003
A Quillen model structure for bicategories – 4 June 2003
Properness of factorization systems in the enriched and bicategorical contexts – 26 March 2003
Pointing a category – 19 June 2002
Partial functions, matrices, and extensivity – 22 May 2002
The real van Kampen theorem for toposes – 17 April 2002
Homotopy theory in 2-categories; homotopy theory of 2-monads – 13 February 2002
A van Kampen theorem for toposes – 14 November 2001
Extensivity for 2-categories – 7 November 2001
A Quillen model structure for V-categories – 26 September 2001
Limits for partial map categories – 1 August 2001
Symmetric spectra – 4 July 2001
A Quillen model structure for 2-categories – 16 May 2001
V-Cat is nice when V is – 7 March 2001
Entity/attribute sketches – 8 November 2000
Codescent objects and coherence – 1 November 2000
The gaucho approach to coherence – 12 April 2000
More on extended distributive laws – 29 March 2000
When small limits of small functors are small – 27 October 1999
More on contractilbe presentations – 15 September 1999
Pseudo-actions of braid monoids (d'après Deligne) – 1 September 1999
When do completion processes give rise to extensive categories? – 26 May 1999
Second meditation on pseudomonads – 31 March 1999
On the monadicity of enriched categories with chosen colimits – 27 January 1999
Exact completions of regular categories – 4 November 1998
Meditation on pseudomonads – 2 September 1998
Cofinite sieves and free restriction categories – 8 July 1998
Lax morphisms and limits – 6 May 1998
Free cocompletions – 15 April 1998
On the monadicity of categories with chosen weighted limits – 21 January 1998
A general notion of operad – 5 November 1997
Van Kampen squares, pushouts, and retract equivalences – 8 October 1997
On the general coherence result of Power – 10 September 1997
The extensive reflection of a distributive category – 2 July 1997
Plus-constructions I have known – 28 May 1997
On the monadicity of finitary monads – 30 April 1997
On property-like structures – 9 April 1997
Dynamic Evaluation – 26 February 1997
Lax World – 12 February 1997
Hopf algebras and combinatorics – 29 January 1997
The free T-category on a T-graph – 27 November 1996
One construction on lax functors – 13 November 1996
U_q(sl(2)), SL_q(2), and duality for Hopf algebras – 30 October 1996
The world of Chu according to Pavlovic – 23 October 1996
Categories of fractions and infinitary structures – 14 August 1996

Back