Thursday, April 20, 2017

CanaDAM 2017

The 6th biennial Canadian Discrete and Algorithmic Mathematics Conference (CanaDAM) will be held on June 12-15, 2017 on the Toronto campus of Ryerson University. Previous CanaDAM Conferences were held at Banff in 2007, Montréal in 2009, Victoria in 2011 St. Johns in 2013 and Saskatchewan in 2015
The general theme of the conference is the theory and application of discrete structures. Its goal is to highlight the most salient trends in the field, which has close links to such diverse areas as cryptography, computer science, large-scale networks and biology. The conference will bring together researchers from the various disciplines with which discrete and algorithmic mathematics interact.
Particular areas of interest are the following: graphs and digraphs, hypergraphs, matroids, ordered sets, designs, coding theory, enumeration, combinatorics of words, discrete optimization, discrete and computational geometry, lattice point enumeration, combinatorial algorithms, computational complexity, and applications of discrete and algorithmic mathematics, including (but not limited to) web graphs, computational biology, telecommunication networks, and information processing.
Invited Speakers:
Tanya Berger-Wolf (U. Illinois at Chicago)
Peter Keevash (Oxford)
Robert Kleinberg (Cornell)
Bojan Mohar (Simon Fraser)
Shubhangi Saraf (Rutgers)
Andrew Suk (U Illinois at Chicago)
Lauren Williams (Berkeley)
Julia Wolf (Bristol) 
Public Interest Lecture:
Jordan Ellenberg (Wisconsin)

Invited Minisymposia:
Algebraic Combinatorics 
Org: Mike Zabrocki (York, Canada)
Algorithmic Game Theory 
Org: Brendan Lucier (Microsoft Research)
Arithmetic Combinatorics 
Org: Pablo Candela (Universidad Autónoma de Madrid)
Biological Networks 
Org: Elena Dimitrova (Clemson)
Convex Geometry 
Org: Sinai Robins (University of São Paulo, Brazil)
Extremal Combinatorics 
Org: Sergey Norine (McGill)
Locality in Coding Theory 
Org: Parikshit Gopalan (VMWare)
Chair: Peter Nelson (Waterloo)
Structural Graph Theory 
Org: Luke Postle (Waterloo)
The Cap Set Problem 
Org: Dion Gijswijt (TU Delft)

Thursday, April 13, 2017

Euler Medal winner Curt Lindner

Forty-five years ago, Curt Lindner surprised the combinatorial community by finding a small embedding for partial Steiner triple systems, turning a complex mystery into a simple truth.  Ever since, in over 200 refereed journal papers and through numerous invited and keynote lectures, he has made apparently complex problems much more approachable.  His research began with embedding problems, but now encompasses a broad sweep across combinatorial design theory, especially cycle systems and graph designs.  

Curt has mentored more than 20 PhD students, and collaborated extensively with international colleagues.  As his nominators say, “Curt is a catalyst” with his “captivating way of encouraging others to join him in mathematical exploration.” 

Thursday, April 6, 2017

Fifth Irsee Conference


Finite Geometries

Fifth Irsee Conference

10-16 September 2017

Organisers: Ilaria Cardinali, Michel Lavrauw, Klaus Metsch, Alexander Pott

This conference extends the series of previous meetings which took place at the Isle of Thorns (2000), in Oberwolfach (2001), and in Irsee (2003, 2006, 2011 and 2014). As before, the conference topics are: 
Combinatorial structures in Galois geometries; Finite Incidence Geometry; Algebraic curves and hypersurfaces over finite fields; Geometric and algebraic coding theory; Finite groups and geometries; Algebraic design theory.
Main speakers include:
Participation in this conference is by invitation only. All participants may submit an abstract for a contributed talk on some aspect of their research related to the main topics of the conference.

Please send all correspondence, other than the abstract, to the following conference email address: 
Looking forward to see you at Irsee,
Ilaria, Michel, Klaus, Alexander

Thursday, March 30, 2017

Our new council members for 2017-2020

Yeow Meng Chee is Professor and Chair of the School of Physical and Mathematical Sciences at the Nanyang Technological University, Singapore.  He is also concurrently the co-director of the Data Science and Artificial Intelligence Research Centre at the Nanyang Technological University.

Marston Conder is a Distinguished Professor of Mathematics at Auckland University, and the former co-director of the New Zealand Institute of Mathematics and its Applications. His main research interests are in combinatorial group theory, graph theory, and their connections with each other. He served as president of the New Zealand Mathematical Society and as president of the Academy of the Royal Society of New Zealand .

Gennian Ge is a Professor in Department of Mathematics, Zhejiang University. Before he joined Zhejiang University, he was a Visiting Assistant Professor in Department of Computer Science, University of Vermont from September, 2002 to February, 2004, and a Postdoctoral Fellow in Department of Computer Science, Concordia University from September, 2001 to August, 2002.  He received his PhD in Mathematics from Suzhou University under the supervision of Professor Lie Zhu in 1996. After that, he became a member of Suzhou University. 

James M. Hammer, III is an Assistant Professor in the Department of Mathematics at Cedar Crest College. He earned the PhD in Design Theory at Auburn University in 2015, with Dissertation: Factor Pair Latin Squares. Bachelors of Science in Mathematics, Kutztown University of Pennsylvania, 2008.

Mark Kayll is a Professor at the University of Montana.  He earned B.Sc. in Mathematics and Statistics from Simon Fraser University and the Ph.D. in Mathematics from Rutgers University. His research interests include: Discrete Mathematics, Optimization, Theoretical Computer Science. 
Sandi Klavžar is a professor of mathematics at the University of Ljubljana working in the area of graph theory and its applications. He
received his Ph.D. from the University of Ljubljana in 1990, under the supervision of Wilfried Imrich and Tomaž Pisanski.  Klavžar's research concerns graph products, metric graph theory, chemical graph theory, graph domination, and the Tower of Hanoi.

Selda KÜÇÜKÇİFÇİ is an Associate Professor at Koç University.  Her area of research is Combinatorics with primary emphasis on Combinatorial Design Theory and Graph Theory.  She earned the Ph.D. in Mathematics from Auburn University in 2000.

Josef Lauri. He teaches at the Department of Mathematics at the University of Malta. For five years, till June 2001, he was also Pro-Rector of the University of Malta and for more than ten years, till May of 2011, he was Chairman of the Management Board of the University's IT Services.  His main research interest is in graph theory, particularly the reconstruction problem, pseudosimilarity and related questions about symmetries of graphs.

Alexander Pott.  He is Professor of Discrete Mathematics, Otto von Guericke University, Faculty of Mathematics Institute, of Algebra and Geometry. His research interests include: Finite geometry, Sequences and their correlation properties, Boolean functions, and Finite body.

Kiki Ariyanti Sugeng is a Senior Lecturer, University of Indonesia in Algebra, Combinatorics, Cryptography.  She also serves as .President of Indonesian Combinatorial Society, 2013-2015 and 2015-now, and Vice President of Indonesian Mathematical Society, 2012-2014 and 2014-2016. Dr. Sugeng was also elected to a three-year term as Vice President of the ICA.

Thursday, March 23, 2017



The Ninth Shanghai Conference on Combinatorics (9SHCC) will be held in Shanghai from May 24th to May 28th, 2017. There will be 50-minute invited talks and 25-minute contributed talks on combinatorial enumerations, combinatorial design theory, combinatorial matrix theory, finite geometry, algebraic combinatorial theory, combinatorial algorithm, graph theory, coding theory and related topics.

Academic Commitee

Eiichi Banani
Shanghai Jiao Tong University, Shanghai
University of Wisconsin, Madison
Zhenfu Cao
East China Normal University, Shanghai
Yanxun Chang
Beijing Jiaotong Univeristy, Beijing
Jiayu Shao
Tongji University, Shanghai
Hao Shen
Shanghai Jiao Tong University, Shanghai
Johannes Siemons
University of East Anglia, Norwich
Joseph.A. Thas
Ghent University, Ghent
California Institute of Technology, Pasadena
Qing Xiang
University of Delaware, Newark
Chaoping Xing
Nanyang Technological University, Singapore
Yeongnan Yeh
Academia Sinica, Taipei
Xiaodong Zhang
Shanghai Jiao Tong University, Shanghai

Local Organizing Commitee
Dameng DengJun MaXiaojun Liu
Jie Zha
Xiaodong Zhang
Huiyu Zhu

Thursday, March 16, 2017

Thanks to our Registrar Emeritus!

Ernest Reut D'Auteil has generously served the ICA as its Registrar, and previously as Editor of the BICA and as a member of Council.  As of March 1, 2017, Spyros Magliveras will be the ICA's Registrar and Ernie will be our Registrar Emeritus.

Thursday, March 9, 2017

Minutes of the AGM March 8, 2017

Meeting called to order at 11:02 by Fred Hoffman
Welcome from the Dean of the College at FAU, apologies from the President who is in Tallahassee at the legislative session.  The Dean welcomes everyone, and is very happy to host the conference and the ICA.  FAU is proud of Spyros for his work, Fred for his work, and the contributions to academia.  FAU is demonstrating Academic Excellence, and proud of the work we are doing.
11:07 Stinson begins his remarks
·      Introductions and moment of silence for Peter Slater, Petr Skoda, Ann Street, Gerd Fricke, Micheal Deza.
·      Election of the Executive: 20 were elected last year, including President Stinson, Vice President Froncek, Pike, Holliday as executive.
·      Registrar change, Ernest Reut D’Atueil has stepped down and Spyros Magliveras will be taking up the role.
·      ICA office is in FAU.  Dues are invoiced monthly.  It will take one year to fully realize the updated membership.  Dues can be paid online through the FAU foundation:  Tax deductible donations can be made Also, email for questions.
·      Dues schedule is existing rates, with the addition of 2 and 3 year membership options.
·      Medals were awarded for the 2009-2015 period. Thanks to Charlie Colbourn, Jonathan Jedwab and Christine O’Keefe who has been reviewing nominations.  An accelerated calendar has been in place.  For the 2016 medals, nominations were due Dec 31, 2016.  A new medal for Stanton is to be awarded, starting 2016.  Medals will go back to being awarded on a routine schedule within a year.  Current backlog medals will be awarded hopefully throughout 2017.
·      Production of medals.  We are investigating a company that will produce dies, blanks, engraving, and boxes.  The bank account is built up to a place where we can make the initial outlay, and that will happen in 2017.  We will continue certificates and medal awards, as medals are slower to produce.
·      BICA.  Ernest resigned from EIC in May, a committee was formed, discussed, and the EIC are Marco Buratti, Don Kreher, Tran Van Trung, and the first issue with the new EIC is the January 2017 issue.  Copies for new and future members are available at the conference (thanks Dalibor for carrying them down here). A new cover design with new logo from Jaromir Sedlacek, the Tutte-Coxeter (Tutte 8-cage) graph was selected for the graph on the cover, Tutte was first President of the ICA and Coxeter was an Honorary Fellow of the ICA. The printing is done in Duluth MN.  The pictures of conference photos are now in color. Cost is about $13 per copy to the ICA, roughly $40/year to print and mail the BICA to members. 
·      BICA.  We published a version of the bulletin online, and emailed the password to ICA members, future work includes publication online with more structure.  There will likely be additional discussion of the options in the future.  Mailing and printing are each $6 something, so going to an online version might allow members to opt out of printed copies for a reduced fee.
·      ICA webpages.  Doug Stinson has been hosting a set of pages on his Waterloo personal pages.  Doug Stinson is accepting additional input, if anyone has any, especially if anyone has talents in web design.
·      Communications with members: ICA mailing list, website, the blog, the BICA.  You can email the BICA editors at, and the office
·      Goals: increase, diversify the membership, more and better and strong papers and survey papers and classroom notes and conference reviews into the BICA.
·      Random thoughts: membership certificates have not been issued since 2007.  Honorary fellows program has lapsed somewhat.  There are five living, sSS Shrikhande, CR Rao, GJ Simmons, Vera Sos, Henry Gould. The most recent were elected in 2010.  Printed membership lists haven’t been issued recently – there are privacy issues associated with this.
·      Thanks to the Exec, to Spyros, the EICs, the Council, the ad-hoc Committee members, and David Allston in Winnipeg.
·      First Financial Report from Ernie: Thank you Doug for opening the meeting and important comments about the history of the ICA, that was my favorite thing to talk about.  I will present my written copy to the secretary.  Historical info. Since November 2016, membership is handled through the FAU office.  I’m happy to see an academic home, and the reason we hadn’t been previously was due to university politics in Manitoba. I think things will go more smoothly since the ICA is growing. We want to make sure things will go more smoothly and have committee and groups working to accomplish tasks and make sure things that I didn’t have a chance to do will get done, and all I could say was sorry, but now there will be more work done.  I handed an envelope to Spyros with a check for the balance of the Winnipeg account, and we’ll transfer any incoming money to FAU, and we won’t need that budget anymore. As in the past, the financial reports of Winnipeg will be published in the upcoming BICA.  The numbers are very similar to last year, and production cost didn’t change but postage increased a small amount. I’m holding nothing back. As of march 1st, I’m stepping back as registrar emeritus, having resigned in favor of Spyros. Our success was attributable to the trust from the membership and we hope this is renewed. I have here a list of our outstanding accounts receivable, and this is unpleasant business, and it amounts to a large amount of money, but we have been very lax about pushing on people about paying dues on time, and this causes challenges when we’re trying support conferences, produce medals, produce a bulleting.  Ralph used to support shortfall by taking money out of his own pocket.  I suspect the organization will now begin swimming.  The total shortfall is a problem, and I hope that the ICA office at FAU will have better luck. All outstandings prior to November 1, 2016 are removed from the list. We allow some kind of grace period, and it’s not worth chasing after people. If people are not receiving the bulletin, perhaps the dues are not paid up.  If after a few years of not paying dues, then I would stop sending the bulletin.  The ICA is a not-for-profit organization in service to its members.  As registrar emeritus, I must stress that without membership and paying dues, it is difficult to maintain the bulletin and conferences.  The BICA was started as a newsletter, and is evolving into a proper journal. If BICA becomes a full fledged journal… we’ll see if there’s room for a second publication to serve as a newsletter
·      Spyros’ report as registrar: Thank the members, and thank Ernie. I have begun automating the invoicing process, and that process is becoming refined.  Since Nov 1, I have issued 252 invoices, and invoices are submitted by email and are costs saving in not posting invoices.  Total proceeds since Nov 1, 14,672.50, paid out $1K for SEICGTCC, fees and stuff is about 7%, and the Manitoba transfer arriving is 4106.13 $CA.  Spyros displays a brief histogram of who is making which type of purchase: MTICA/retired: $750, AFTICA: $1100, FTICA: 3750, 2yr 400, 3yr 2100, life 4000, donations 2600.  We have presently 543 members, that’s an increase of 29 from November 1, 2016, and not including those who joined during the Conference. An interim goal of 600 active members this year…
·      Dalibor: ten council nominees, for a three-year term 2017-2020. Motion: Holliday Second: El-Zanati Approved, congratulations!  Need third VP: Kiki Ariyanti Sugeng Motion: D’Auteil, Second: Carnes. Approved
·      Sarah Holliday: A of A, changes to graduate/student, updating postal to email, changing quorum to 1/3, and institutional to $500 with 4 student memberships included. Motion Mullins, Second Magliveras, Approved.
·      Dalibor presented the following letterhead based on the BICA design:

·      Question: Dinitz, is the initials trademarked by anyone else? Not in the context of the logo.
·      Adjourned at 12:07

Thursday, March 2, 2017

ICA Annual General Meeting

The meeting is scheduled to be held at the 48th Southeastern International Conference on Combinatorics, Graph Theory & Computing at Florida Atlantic University in Boca Raton, Florida.

The meeting will be on Wednesday, March 8, at 11am in the Grand Palm Room.

Agenda as follows:

Report from the President
• election of Executive (2016)
• ICA Office relocation
• dues schedule
• ICA medals
• Bulletin of the ICA
• Communicating with the Membership
Financial reports
• Ernest Ruet d’Auteuil
• Spyros Magliveras
Election of new council members
Constitutional issues and initiatives

As well, two medal presentations will take place at the Conference.

Minutes of the meeting will be taken by Sarah Holliday and posted here, hopefully Thursday morning!

Thursday, February 23, 2017


Thursday, February 16, 2017


ICYMI = In case you missed it.  It's one of those really annoying acronyms that doesn't mean much.

But hey, here's a link where you can pay/renew/update your membership online!

Thursday, February 9, 2017

Medals presented at the ACCMCC (Greenhill, Horsley, Mohar, Stones)

Bojan Mohar (Euler medal), Catherine Greenhill (Hall medal), Daniel Horsley (Kirkman medal), Rebecca Stones (Kirkman medal)

 2010 Hall Medal award to Catherine Greenhill
Catherine Greenhill’s research is primarily on discrete stochastic processes and random combinatorial structures. She has worked in at least four distinct areas of combinatorics and computer science, and has made very significant contributions to the study of random graphs, graph colourings, Markov chains, asymptotic enumeration, and complexity theory. She has published almost 40 journal and conference papers. Her nominators speak of her “expert application of advanced technical methods”, and her “reputation of being carefully precise, highly dedicated and very imaginative".

2010 Euler Medal award to Bojan Mohar
Bojan Mohar’s outstanding research and leadership over a period of thirty years place him as one of today’s foremost discrete mathematicians worldwide. His deep and important contributions have dramatically improved our understanding of the structural properties of graphs. His research spans many areas, including topological graph theory, graph minors, infinite graphs, spectral graph theory, algebraic graph theory, and computational geometry. He has published more than 200 journal and conference papers (with more than 25 submitted), and has almost 100 collaborators. His nominators speak of his “tremendous intellectual energy”, “fantastic invited talks”, and “stellar record of service”.

2010 Kirkman Medal award to Daniel Horsley
Daniel Horsley’s research is in the area of graph decompositions and designs. He has worked on problems concerning Steiner triple systems with embedded substructures, decompositions of graphs into cycles, and c-chromatic designs. His PhD dissertation includes a proof of Lindner’s Conjecture on embeddings of partial Steiner triple systems, which had been open since the 1970s. He had published 11 journal publications, with five more submitted. His nominators state that “the quality of these publications [...] is quite remarkable” and that “His work has been of a consistently high standard and impact."

2012 Kirkman Medal award to Rebecca Stones

Rebecca Stones has broad research interests that extend from combinatorics and graph theory to include search engine algorithms, complex networks, and phylogenetics. She had published 13 papers in mathematics, engineering and bioinformatics journals and one conference paper, and had given 15 conference and workshop presentations. Her nominators describe a researcher who “has obtained strong original results on fundamental problems” and who is “destined for an academic career of distinction”.