Ron Gentle,

*Short Exact Sequences*

Wednesday, September 25, 1985

Ron Gentle, * More Short Exact Sequences*

Wednesday, October 2, 1985

Stefano Kasangian, *The Bicategory of Modules*

Wednesday, October 9, 1985

Barry Fawcett, *A Categorical Equivalent of the Four Colour Theorem*

Wednesday, October 16, 1985

Richard Wood, *Combinatorics and Categories*

Wednesday, October 23, 1985

Pat Stewart, *A Ring Theory Double Feature*

Thursday, October 31, 1985

Edward Goodaire, *Some Loops are Groups*

Wednesday, November 6, 1985

Mike Wendt, *Total Categories*

Tuesday, November 12, 1985

K.K. Tan, *Covering Theorems of Simplexes and Systems of Linear Inequalities*

Wednesday, November 20, 1985

Wendy MacCaull, *Applications of Intuitionistic Logic to Regular Rings*

Wednesday, November 27, 1985

Wendy MacCaull, *Positive Definite Functions over Regular f-rings and
Representations as Sums of Squares*

Wednesday, January 8, 1986

John Phillips, *Group Actions and Coactions*

Friday, January 17, 1986

J. Williams, *Some Applications of Homotopy Theory to Problems in
Mathematical Physics*

Wednesday, January 22, 1986

David Lever, *Stability in Indexed Categories*

Wednesday, January 29, 1986

Bob Rosebrugh, *Automata and Enriched Categories I*

Wednesday, February 12, 1986

Ron Gentle, *Localization and Colocalization in Abelian Categories*

Wednesday, February 19, 1986

Margaret Beattie, *Finiteness Conditions for Gabriel Topologies*

Wednesday, March 5, 1986

Bob Rosebrugh, *Automata and Enriched Categories II*

Wednesday, March 12, 1986

Max Kelly, *The Closure of a Family of Colimits*

Wednesday, March 19, 1986

Ron Gentle, *Torsion Theories*

Wednesday, March 26, 1986

Ron Gentle, *The Archimedian Solids*

Monday, April 7, 1986

I. Hughes, *Polynomial Invariance for Finite Characteristic*