CIRCA & Algbera Seminars
pure maths colloquia | forthcoming | previous 

Many of our seminars are Pure Mathematics Colloquia, so why not check here?

Previous CIRCA & Algebra Semigroups - 2016 to 2017

Previous Pure Mathematics Colloquia from: 2016/17, 2015/16, 2014/15, 2013/14, 2012/13, 2011/12, 2010/11, 2008/09, 2007/08

Wednesday the 8th of March 2017 at 1pm in Theatre D

Tomas Nilson
Mid-Sweden University
Agrawal’s conjecture for triple arrays

A triple array is an array in which two 2-designs are merged together such that any row and column contain the same number of common symbols.

Agrawal’s conjecture says that (in the canonical case), there is a triple array if and only if there is a symmetric 2-design (SBIBD).

Given a triple array we can construct a SBIBD. But here we will look at approaches and problems surrounding the desirable and still open direction. How to construct an array with these properties from a subset structure.

We will give background and define objects used. The exposition will be elementary and special knowledge of the area will not be assumed.

Friday the 24th of February 2017 at 2pm in Lecture Theatre A

Robert Bailey
Memorial University of Newfoundland
Metric dimension, computation and distance-regular graphs