The 5th International Workshop on Optimal Network Topologies 
(IWONT 2012)

July 27 – 29, 2012

Institut Teknologi Bandung, Indonesia

jointly organised by

Combinatorial Mathematics Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung

Indonesian Combinatorial Mathematics Society (InaCombS)

The International Workshop on Optimal Network Topologies 2012 will be held at Institut Teknologi Bandung in Bandung, Indonesia during  27 - 29 July, 2012. The conference will be dedicated to the memory of Joan Gimbert, who passed away in February. 

The conference is focussed on  problems related to the design and analysis of large networks. The topics of the workshop include:

• Degree/Diameter Problem

• Connectivity

• Cycles and Factors in Graphs

• Large Graphs and Digraphs

• Cages and EX graphs

• Spectral Techniques in Graph Theory

• Ramsey Numbers

• Dimensions of Graphs

• Communication Networks

Previous editions of IWONT were held in Ballarat, Australia (IWONT 2005), Plzeň, Czech Republic (IWONT 2007), Barcelona, Spain (IWONT 2010) and Brussels, Belgium (IWONT 2011). 


Submission of extended abstracts (max 2 pages): 30 May 2012 (extended)

Acceptance notification: 6 June 2012

Early Registration: 24 June 2012

Confirmation of participation: 25 June 2012


Dominique Buset, Universite Libre de Bruxelles (ULB), Belgium "The state of art of the degree - diameter problem"

Leif Jorgensen, Aalborg University, Denmark "Variations and generalizations of Moore Graphs"

Margarida Mitjana, Universitat Politecnica de Catalunya, Spain "Weakly distance-regular digraphs revisited"

Akira Saito, Nihon University, Japan "Forbidden subgraphs generating a finite set"

Jozef Siran, Open University, UK and Slovak Technical University Bratislava, Slovakia "A survey of algebraic methods in the degree-diameter problem"


Selected papers of this workshop will be published in a special issue of:

  1. AKCE International Journal of Graphs and Combinatorics (indexed by Mathematical Reviews, Zentralblatt MATH, and SCOPUS)
  2. ITB Journal of Science (indexed by Scopus, Index Copernicus, Google Scholar, getCITED, and registered in Directory of Open Access Journals)


International Mathematics Union (IMU) and Abdus Salam International Centre for Theoretical Physics (ICTP) have generously sponsored this workshop toward financial support for selected participants from developing countries. Please contact the organizer at rino@math.itb.ac.id to apply for this support. 


International Workshop on Combinatorial Algorithm (IWOCA) 2012, 19-21 July 2012, Kalasalingam University, Tamil Nadu, India

International Workshop on Graph Labelings (IWOGL) 2012, 23-25 July 2012, Universitas Indonesia, Jakarta, Indonesia