
THE
FIELDS INSTITUTE FOR RESEARCH IN MATHEMATICAL SCIENCES

22nd
Ontario Combinatorics
Workshop
May
1617, 2014
York University
(TEL
0010)



Organizers:
Ada Chan and Mike Zabrocki


Overview
The Ontario Combinatorics Workshop is an annual meeting for researchers working
in combinatorics from Ontario and surrounding areas to gather and share their
latest research developments. The objective of this meeting is to have an
atmosphere conducive to research discussion and collaboration. The setting
of the meeting is informal to provide a friendly environment for students
and postdoctoral fellows to present their results, to exchange ideas, and
to gain exposure to various topics in combinatorics. It is also a place where
students and faculties meet, which may foster future collaborations.
Format
The Ontario Combinatorics Workshop will be a twoday event consisting of three
invited talks and a few sessions contributed talks.
Peter Rodney Memorial Book Prize:
The prize will go to the student who gives the best talk in the workshop in
honour of Dr. Peter Rodney (19651995).
Invited speakers:
Aleksandar Jurišic, Professor, Faculty of Computer and Information
Science University of Ljubljana, Slovenia
Kevin Purbhoo Associate Professor, Department of Combinatorial and
Optimization University of Waterloo
Andrew Rechnitzer Associate Professor, Mathematics Department University
of British Columbia
SCHEDULE (speaker abstracts)
Friday May 16,
2014 (TEL 0010) 
9:009:25 a.m

Monochromatic Path Decompositions
Daniel T. Soukup (Toronto) 
9:309:55 a.m.

Finding a Second Hamilton Cycle: the Missing Link
Andrew Wagner (Ottawa) 
10:0 10:25 a.m.

Stress Matrices and Realisations of Graphs on Surfaces
Tony Nixon (York) 
10:3011 a.m.

Coffee break 
11:0011:25 a.m.

The Total Acquisition Number of Random Graphs
Deepak Bal (Ryerson) 
11:3011:55 a.m.

Percolation with Small Clusters in Random Graphs
Mustazee Rahman (Toronto) 
noon  2 p.m.

Lunch 
2:00 2:55 p.m.

Trivial words in groups  the importance of counting
nothing
Andrew Rechnitzer (UBC) 
3:003:25 p.m.

Bounds for GraphIntersecting Packings
Elizabeth Maltais (Ottawa) 
3:30 4:00 p.m.

Coffee break 
4:004:25 p.m.

A Surprisingly Simple de Bruijn Sequence Construction
Dennis Wong (Guelph) 
4:304:55 p.m.

Random 312Avoiding Permutations
Lerna Pehlivan (Washington) 
5:00 5:25 p.m. 
Spread Codes and Their Role in Communication
Felice Manganiello (Clemson) 
Saturday May
17, 2014 (TEL 0010) 
9:009:25 a.m

Recent Developments in Quantum State Transfer
Gabriel Coutinho (Waterloo) 
9:309:55 a.m.

Bipartite Covers of Linear Cayley Graphs with only Five
Eigenvalues
Junbo Huang (Waterloo) 
10:0010:25 a.m.

Computational Complexity of Maxclique for Cayely Graphs
Brendan Rooney (Waterloo) 
10:3011 a.m.

Coffee break 
11:0011:55 a.m.

Graphs with three eigenvalues and nite geometries called
GQ
Aleksandar Jurišic (Ljubljana) 
noon2 p.m.

Lunch 
2 p.m.2:55 p.m.

Promotion for staircase tableaux
Kevin Purbhoo (Waterloo) 
3:00.3:25 p.m.

Uniform Mixing in Quantum Walks
Harmony Zhan (Waterloo) 
3:30 4:00 p.m.

Coffee break 
4:00 4:25 p.m.

A SchurLike Basis of NSym Defined by a Pieri Rule
John Campbell (York) 
4:30 4:55 p.m.

GameTheoretic Network Formation
Omid Atabati (Brock) 
5:005:25 p.m. 
Algorithms for Community Detection within Social Networks
Christopher Hogan (Wilfrid Laurier) 
Accommodation:
On YorkKeele campus (http://elc.schulich.yorku.ca)
:
To reserve a room: call 4166508300 or write to reservations<at>schulich.yorku.ca
Please mention reference booking # 570572 or Ontario Combinatorics Workshop
for the group rate of $130+13%HST per night including a hot breakfast.
Downtown Toronto:
please see http://www.fields.utoronto.ca/resources/housing.html
Confirmed participants as of April 22
Full Name
* awaiting confirmation 
University/Affiliation

Akinwande, Mufutau 

Allaire, Francis 
Lakehead University 
Atabati, Omid 
Brock University 
Bailey, Robert 
Grenfell Campus, MUN 
Baker, Michael 
University of Waterloo 
Burgess, Andrea 
Ryerson University 
Campbell, John 
York University 
Chan, Aaron 
University of Waterloo 
Chan, Ada 
York University 
Clements, John 
Brock University 
Coutinho, Gabriel 
University of Waterloo 
Danziger, Peter 
Ryerson University 
Golestanian, Arnoosh 
Brock University 
Jurišic Aleksandar 
University of Ljubljana 
Kotsireas, Ilias 
Wilfrid Laurier University 
Madras, Neal 
York University 
Mallari, Nicolo 
York University 
Maltais, Elizabeth 
University of Ottawa 
Manganiello, Felice 
Clemson University 
Newman, Mike 
University of Ottawa 
Nixon, Anthony 
York University 
Noorzad, Pardis 
Ryerson University 
Park, Sophia 
Ryerson University 
Pehlivan, Lerna 
University of Washington 
Pichugina, Oksana 
Brock University 
Poirier, Antoine 
University of Ottawa 
Quinlan, Kelly 
Ryerson University 
Raguimov, Iouldouz 
York University 
Rahman, Mustazee 
University of Toronto 
Rooney, Brendan 
University of Waterloo 
Salarinezhad, Asefeh 
Brock University 
Sarkar, Soumen 
University of Regina 
Sottile, Frank 
Texas A&M University 
Soukup, Dániel Tamás 
University of Toronto 
Van Tuyl, Adam 
Lakehead University 
Vassilev, Tzvetalin 
Nipissing University 
Wagner, Andrew 
University of Ottawa 
Wong, Dennis 
University of Guelph 
Xu, Yan 
University of Waterloo 
Zhan, Hanmeng 
University of Waterloo 
Contributed
talks
Please submit the title and abstract of your talk to ssachan@yorku.ca
or zabrocki@mathstat.yorku.ca
before April 15, 2013.

