Awards & Recognitions

  1. Ganesa Cendekia Widya Adiutama, Institut Teknologi Bandung, 2014.
  2. Satyalancana Karya Satya (20-year service), President of Indonesia, 2013.
  3. Extraordinary Intellectual Quality, Ministry of National Education 2010
  4. Habibie Award in Basic Science, 2009.
  5. Australian Alumni Award for Excellence in Education, 2009
  6. The First Prize National Best Lecturer, the Directorate of Higher Education Ministry, Department of National Education, Indonesia, 2008.
  7. Satyalancana Karya Satya, President of Indonesia, 2006.
  8. Ganesa Wira Adiutama, ITB, 2001. 

  1. Keynote Talk, The 5th International Conference in the Applications of Science and Mathematics 2019 (SCIEMATHIC 2019), Malaka Malaysia 13-15 August 2019, Title: Ramsey Theory: Total disorder is impossible. 
  2. Invited Talk, The 4th International Conference on Graph Theory and Information Security (ICGTIS 2019), 17-19 July 2019, Jember Indonesia, Title: The super edge-magic deficiency of graphs. 
  3. Keynote Talk, Asian Science Deans Summit (ASDS) 9-11 July 2019, Malang Indonesia, Title: Strengthening  Networking. 
  4. Keynote Talk, The International Conference on Technology and Social Science ICTSS, Kiryu City, Gunma Prefecture, Jepang, 8-10 May 2019, Title: Graph Ramsey Number: Old problem and new result. 
  5. Invited Talk, MIPAnet School on Graph Theory and Applications, Institut Teknologi Bandung (ITB), 15-17 February 2019. Title: Matching problems and applications. 
  6. Keynote talks. Some Recent Progress on Ramsey Theory, The 2nd International Conference of Combinatorics, Graph Theory and Network Topology, Universitas Jember, Indonesia, Nov 24-25, 2018. 
  7. Indonesian representative. in General Assembly, International Mathematical Union (IMU), July 29-30, 2018, Sao Paulo Brazil.
  8. Invited poster. Unicyclic Ramsey (mK2,P4)- minimal graphs, Building Bridges II, 2-6 July 2018, Budapest Hungary.
  9. Invited talk. Some Ramsey numbers and Ramsey (mK2,H)-minimal graphs, The 3rd Sendai Workshop on Algebraic Combinatorics, 5-8 March 2018, Tohoku Univ, Sendai, Japan.
  10. Invited talk. On the Ramsey Number of Wheels, Highlights of Mathematics in Asia, School of Mathematics, Tata Institute of Fundamental Research, Mumbai India, August 18-21, 2017.
  11. Keynote talk. Workshop: Peran dan Fungsi Kelompok Bidang Keahlian, Universitas Andalas, Padang, 5 June 2017
  12. Keynote talk. Ramsey Number in Graphs, the Annual Convention Mathematical Society of the Philippines, May 29-31, Legazpi City, Philippines, 2017.
  13. Keynote talk. Graph Ramsey Number: Old problem and New Result, International Conference on Mathematics: Education, Theory & Application (ICMETA), 6-7 Dec 2016, Surakarta Indonesia.
  14. Public lecture. “Peranan Matematika dalam Membangun Bangsa” (in Indonesian), Universitas Sebelas Maret, Surakarta, 5 Dec 2016.
  15. Seminar. Ramsey Number for Graphs, Departmental Seminar, University of Essex, Colchester UK, 22 November 2016.
  16. Keynote. Ramsey Numbers for Graphs, The 12th International Conference on Mathematics, Statistics and Its Application (ICMSA), 4-6 October 2016, Banda Aceh Indonesia.
  17. Invited. On the structure of Almost Moore digraphs (invited talk), Distance in graph 2016, 18-22 Juli 2016, Ubud Bali, Indonesia.
  18.  Visiting professor. Tohoku University, 22 April – 1 May 2016. Intensive course in Ramsey Theory.
  19. Seminar. The existence of almost Moore digraphs, Pune University, PUNE India, 31 December 2015.
  20. Invited. On Almost Moore Digraphs, The 81st Annual Conference of IMS Visvesvaraya National Institute of Technology (VNIT), Nagpur India, 27-30 December 2015
  21. Seminar. On the existence of almost Moore digraphs, Xiamen University, Xiamen, China, 18 November 2015.
  22. Seminar. Ramsey Niumbers for Graphs, Mathematics and Mathematics Education, National Institute of Education, NTU, Singapore, 28 Oktober 2015.
  23. Research Workshop. Ramsey Theory for Graphs, SEAMS School on Coding and Graph, Universitas Hasanuddin, Makassar, 26 September – 6 Oktober 2015.
  24. Invited. Metric Dimension of graphs, GraphMasters Workshop Universitas Jember, 25 – 26 September 2015.
  25. Keynote. Ramsey Numbers for graphs, The 5th Annual Basic Science International Conference 2015, Malang, Indonesia, February 11-12, 2015
  26. The Complete List of Ramsey $(2K_2,K_4)-$Minimal Graphs, Bordeaux Graph Workshop, 19-22 November 2014, Bordeaux France (contributed talk)
  27. Keynote. On Graph Ramsey Numbers, The 7th International Conference on Science and mathematics Education in Developing Countries, 7-9 November 2014, Mandalay
  28. Invited. Conjecture on the total vertex irregularity strength of graphs, Bandung Workshop on Combinatorics and Optimization (BWCOP) 2014, ITB Bandung Indonesia, 1-2 November 2014
  29. Contributed talk, On the Ramsey (G,H)-minimal graphs, International Congress on Mathematicians (ICM) 2014, Seoul Korea, August 13-21,  2014.
  30. On Ramsey numbers for wheels and union of graphs, IWONT2014, Bratislava Slovakia, June 30 – July 4, 2014.
  31. The Ramsey number of a union of graphs, SEAMS-YUNNAN Workshop in Mathematics and Information Science, Kunming P.R. China, June 18-22, 2014.
  32. Keynote. Size Ramsey Numbers and Ramsey Minimal Graphs, The 9th GraphMasters Workshop, Universitas Islam Malang (UNISMA), Indonesia, June 7-8, 2014
  33.  Invited Talk. On Graph Ramsey Ramsey, International Joint Research Week on Non-Commutative Stochastic Systems: Analysis, Modelling and Applications, GSIS Tohoku University, Sendai, Japan, February 3-7, 2014.
  34. Invited Talk. Some progress on Ramsey (G,H)-minimal graphs, The 6th World Conference on 21st Century Mathematics 2013, March 6-9, 2013, Abdus Salam School of Mathematical Sciences, GC University Lahore Pakistan.
  35. On the locating-chromatic number of a corona product of two graphs, ICTP-IPM Workshop and Conference on Combinatorics and Graph Theory, Trieste Italia, 3-14 September 2012.
  36. Invited talk. Conjectures on the total vertex-irregularity strength of graphs, International Workshop on Graph labelling, Puncak Indonesia, 23-25 July 2012.
  37. On the locating-chromatic number for a corona product of two graphs, SIAM Conference on Discrete Mathematics Dalhousie University, Halifax, Nova Scotia, Canada, 18-21 June 2012.
  38. Seminar. On the existence of (d,k)-digraphs, Seminar, 15 May 2012, Graduate School of  Information Sciences, Tohoku University, Japan.
  39. Ramsey Minimal Graphs, Workshop on Graph Theory, 22-24 December 2011, ASSMS GC University, Lahore Pakistan.
  40. Invited talk. On The Existence of Almost Moore Digraphs, Department of Mathematics Seminar, University of the Basque Country, Bilbao Spain, 25 November 2011.
  41. Necessary conditions for (d,k)-digraphs, International Workshop on Optimal Networks Topologies (IWONT2011), Brussels Belgium, 11-15 July 2011.
  42. Ramsey Theory, Mathematics Seminar Series, 30 May 2011, ITB Bandung Indonesia.
  43. Contributed talk. On Ramsey (2K2,Pn)-minimal graphs, International Congress of Mathematicians, 19-27 August 2010, Hyderabad India.
  44. Indonesian representative. in General Assembly, International Mathematical Union (IMU), August 16-17, 2010, Bangalore India.
  45. Invited talk. The existence of almost Moore digraphs with higher degree and diameter, International Workshop on Optimal Networks Topologies IWONT2010, Barcelona Spain, 9-12 June 2010.