Amir Jafari

Email: ajafari[at]
Tel: +98 (21) 6616 5604
P.O. Box 11155-9415, Tehran, Iran.


  1. On the Chromatic Number of Kneser Graphs and Hypergraphs and Their Variants. IST Austria 14/08/2019.
  2. On Homomorphic Secret Sharing Schemes. IST Austria, 05/08/2019.
  3. On linear algebraic methods to derive lower bounds for information ratios of linear secret sharing schemes. Universitat Polytecnica de Catalunya, Spain. 07/25/2019.
  4. Chromatic number of generalized Kneser graphs and Hadamard matrices. Bilkent University, Turkey 20/03/2019.
  5. Improvements on k-center problem for uncertain data, PODS 2018, Houston, TX, USA. 12/06/2018.
  6. On dominations in graphs. IPM, 21/02/2018.
  7. On chromatic number of generalized Kneser graphs. Sharif University, 22/02/2017.
  8. Hilbert’s Nullstellensatz: history and several proofs. Sharif University,  15/05/2015
  9. On Mirzakhani's computation of volumes of the moduli spaces of bordered Riemann surfaces. IPM,  04/12/2014
  10. What is algebraic geometry? IPM, 27/02/2014
  11. Geometry of Multiple Zeta Value. IPM 20/11/2013
  12. Algebraic cycles and algebraic K-theory, Part II. IPM 28/02/2013
  13. Algebraic cycles and algebraic K-theory, part I. IPM 27/02/2013
  14. Several lectures in Oral Journal of the department. Sharif University 2012-2013
  15. Multiple zeta values and mixed Tate motives over Z, Cycles in Istanbul, Turkey, 27/03/2011.
  16. de Rham cohomology of log singular differential forms on algebraic varieties, ICTP, Trieste, Italy, May 2010.