## Talks from 2004

Here is a list of all talks given in 2004 at the Australian Category Seminar. Click on the title for an abstract, or on the speaker's name for other talks by that speaker.

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### 15 December 2004, Macquarie

- 2pm: Thorsten Palm – Polytopes viewed differently
- 4pm: Ross Street – The lax centre for cartesian presheaf categories

### 10 December 2004, Macquarie

- 2pm: Marni Sheppeard – Guts and descent

### 17 November 2004, Macquarie

- 2pm: Steve Lack – Colimit completions, flat functors, and connected G-sets
- 4pm: Ross Street – Application of the special adjoint functor theorem

### 10 November 2004, Sydney

- 2pm: Ross Street – Functors between categories of G-sets
- 4pm: Steve Lack – Quasiadhesive categories

### 27 October 2004, Macquarie

- 2pm: Michael Batanin – Opetopes and polynomial functors
- 4pm: Steve Lack – Lax morphisms, oplax limits, and double categories

### 20 October 2004, Macquarie

- 2pm: Alexei Davydov – Representations of categorical groups
- 4pm: Thorsten Palm – Categories with a slice-category construction as categories of certain set-valued functors, cont.

### 6 October 2004, Macquarie

- 2pm: Frank Valckenborgh – Some elementary constructions in foundational physics
- 4pm: Thorsten Palm – Categories with a slice-category construction as categories of certain set-valued functor

### 22 September 2004, Macquarie

- 2pm: Alexei Davydov – On 2-vector spaces
- 4pm: Ross Street – Elementary category theory

### 15 September 2004, Macquarie

- 2pm: Thorsten Palm – Dendrotopic sets for weak omega-categories II
- 4pm: Ross Street – Monoids and things monoidal

### 8 September 2004, Sydney

- 2pm: Thorsten Palm – Dendrotopic sets for weak omega-categories
- 4pm: Dominic Verity – Complicial Sets - A proof of the Street-Roberts conjecture regarding nerves of omega-categories V

### 1 September 2004, Macquarie

- 2pm: Ezra Getzler – Differential graded Lie algebras and n-groupoids
- 4pm: Steve Lack – Restriction theories

### 25 August 2004, Macquarie

- 2pm: Bob Rosebrugh – Sketches, databases and incomplete information
- 4pm: Dominic Verity – Complicial Sets - A proof of the Street-Roberts conjecture regarding nerves of omega-categories IV

### 18 August 2004, Macquarie

- 2pm: Steve Lack – Twisted modules and crossed braidings
- 4pm: Dominic Verity – Complicial Sets - A proof of the Street-Roberts conjecture regarding nerves of omega-categories III

### 4 August 2004, Macquarie

- 2pm: Dominic Verity – Complicial Sets - A proof of the Street-Roberts conjecture regarding nerves of omega-categories II
- 4pm: Ross Street – String diagrams for monoidal categories

### 28 July 2004, Macquarie

- 2pm: Dominic Verity – Complicial Sets - A proof of the Street-Roberts conjecture regarding nerves of omega-categories
- 4pm: Steve Lack – Report on CT04

### 30 June 2004, Macquarie

- 2pm: William Joyce – Recoupling Lie Algebra, the next step beyond superalgebra

### 26 May 2004, Macquarie

- 2pm: Michael Batanin – A_infty n-categories

### 12 May 2004, Sydney

- 2pm: Steve Lack – Pure-braided monoidal categories
- 4pm: Alexei Davydov – Balanced monoids in balanced monoidal categories

### 21 April 2004, Macquarie

- 2pm: Yuri Bahturin – Bicharacters on cocommutative Hopf algebras
- 4pm: Steve Lack – Pure ribbons and reversible operads

### 7 April 2004, Macquarie

- 2pm: Ross Street – Cauchy completion, centres, and Frobenius algebras
- 4pm: George Janelidze – Categories with large zeros and nice copointed objects, III

### 17 March 2004, Macquarie

- 2pm: Ross Street – G-sets and V-actegories as enriched categories
- 4pm: George Janelidze – Noncommutative descent in classical algebra

### 10 March 2004, Sydney

- 2pm: Zurab Janelidze – A unified approach to Mal'tsev, unital, and subtractive categories

### 3 March 2004, Macquarie

- 2pm: George Janelidze – Categories with large zeros and nice copointed objects, II
- 4pm: Alexei Davydov – On separable algebras

### 25 February 2004, Macquarie

- 2pm: Alexei Davydov – Quasi-commutative monoids II
- 4pm: George Janelidze – Categories with large zeros and nice copointed objects, I

### 18 February 2004, Macquarie

- 2pm: Michael Batanin – Lax monoids and configuration spaces II
- 4pm: Ross Street – Convolution and actegories

### 11 February 2004, Sydney

- 2pm: Michael Batanin – Lax monoids and configuration spaces
- 4pm: George Janelidze – Galois theory and cartesian adjunctions

### 28 January 2004, Macquarie

- 2pm: George Janelidze – What are split effective descent morphisms?
- 4pm: Ross Street – Frobenius equals star-autonomous

### 21 January 2004, Macquarie

- 2pm: Alexei Davydov – Quasi-commutative monoids
- 4pm: Ross Street – Frobenius algebras and pseudo-algebras