some lecture notes by Andrei Romashchenko:

• course HAI906I : Calcul formel avancé et applications, Université de Montpellier, autumn 2025
  • lecture 1 (lecture notes and homework)
  • lecture 2 (lecture notes and homework)
  • lecture 3 (lecture notes and homework)
  • a few supplementary exercises for lectures 1-3


• course HAI709I : Fondements cryptographiques de la sécurité, Université de Montpellier, autumn 2024 [lectures 1..6 + midterm + lectures 8..12]
  The program of the course.
  Lecture notes:

  • lecture 1 (Sep 09): lecture notes (revised), homework
  • lecture 2 (Sep 16): lecture notes (revised), homework
  • lecture 3 (Sep 23): lecture notes, homework
  lecture 4 (Sep 30): lecture notes, homework
  • lecture 5 (Oct 07): lecture notes (revised), homework
  • lecture 6 (Oct 14): lecture notes
  • lecture 11 (Dec 2): lecture notes, homework
  • lecture 12 (Dec 9): lecture notes.
  Additional exercises:

  • exercises for the lectures from the 1st half of the semester.
  • exercises for the lectures from the 2nd half of the semester.
  • a few additional exercises.
  The materials on the lectures given by Katharina Boudgoust (lectures 8-10) can be found on her page.

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• mini-course on Different Views of Information in Fall school on Geometry in Cryptography and Communication, October 2025 in Tromsø.
• mini-course on Expanders and Their Applications in Computer Science Club, March 2009 and April 2017 in Saint-Petersburg, April 2017 in Kazan.
• tutorial on Embedding computations in tilings, Thematic school on transversal aspects of tiling, May-June 2016 (Oleron)
• mini-course on Introduction to Information Theory in Computer Science Club, 2015, Saint-Petersburg.
• mini-course on Coding Theory for Computer Scientists in Computer Science Club, March 2012, Saint-Petersburg.

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Last update: Nov 4, 2025