September  1, 2014

22nd Ontario Combinatorics Workshop
May 16-17, 2014
York University
(TEL 0010)

Ada Chan and Mike Zabrocki

Schedule Confirmed Participants

Map of Campus

Congratulations to Gabriel Coutinho recipient of the
Peter Rodney Memorial Book Prize


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 post-doctoral 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.

The Ontario Combinatorics Workshop will be a two-day 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 (1965-1995).

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)

9:00-9:25 a.m
Monochromatic Path Decompositions
Daniel T. Soukup (Toronto)
9:30-9:55 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)
10:30-11 a.m.
Coffee break
11:00-11:25 a.m.
The Total Acquisition Number of Random Graphs
Deepak Bal (Ryerson)
11:30-11:55 a.m.
Percolation with Small Clusters in Random Graphs
Mustazee Rahman (Toronto)
noon - 2 p.m.
2:00- 2:55 p.m.
Trivial words in groups - the importance of counting nothing
Andrew Rechnitzer
3:00-3:25 p.m.
Bounds for Graph-Intersecting Packings
Elizabeth Maltais (Ottawa)
3:30- 4:00 p.m.
Coffee break
4:00-4:25 p.m.
A Surprisingly Simple de Bruijn Sequence Construction
Dennis Wong (Guelph)
4:30-4:55 p.m.
Random 312-Avoiding 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)

9:00-9:25 a.m
Recent Developments in Quantum State Transfer
Gabriel Coutinho (Waterloo)
9:30-9:55 a.m.
Bipartite Covers of Linear Cayley Graphs with only Five Eigenvalues
Junbo Huang (Waterloo)
10:00-10:25 a.m.
Computational Complexity of Maxclique for Cayely Graphs
Brendan Rooney (Waterloo)
10:30-11 a.m.
Coffee break
11:00-11:55 a.m.
Graphs with three eigenvalues and nite geometries called GQ
Aleksandar Jurišic
noon-2 p.m.
2 p.m.-2:55 p.m.
Promotion for staircase tableaux
Kevin Purbhoo
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 Schur-Like Basis of NSym Defined by a Pieri Rule
John Campbell (York)
4:30- 4:55 p.m.
Game-Theoretic Network Formation
Omid Atabati (Brock)
5:00-5:25 p.m. Algorithms for Community Detection within Social Networks
Christopher Hogan (Wilfrid Laurier)



On York-Keele campus ( :
To reserve a room: call 416-650-8300 or write to reservations<at>
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

Confirmed participants as of April 22

Full Name
* awaiting confirmation


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 or before April 15, 2013.