Concurrency Theory

From International Center for Computational Logic

Concurrency Theory

Course with SWS 2/2/0 (lecture/exercise/practical) in SS 2024

Lecturer

SWS

  • 2/2/0

Modules

Examination method

  • Oral exam

Matrix channel

Lecture series


News

  • On July 31st and August 6th, I offer slots for your oral examinations. Please contact our secretary, Kati Domann, to get your date and time slot. If you're looking for a complex exam (with more than one examiner), these dates are generally not applicable since all examiners must be available. In that case, you must still request an examination date.

Course Description

Modern computer systems are often multi-threaded or even fully distributed over several machines and geographical locations. Instead of the well-known sequential computational models (e.g., Turing machines, λ-calculus, etc.), the key notion for describing concurrent computations is that of a process. In this course, we study several phenomena occurring in concurrent computations using process calculi, for which we will define and analyze their formal semantics. As one of the key aspects, we ask when two processes are considered to be equivalent. Subsequently, we give an (incomplete) list of topics we strive for throughout the course.

  • From sequential to parallel processes (LTS, CCS)
  • Bisimulation and Coinduction
  • From sequential to concurrent processes (Petri nets)
  • Mobile processes (the π-calculus)
  • Expressive power of process calculi
  • Data-Aware Processes

Contact

If you have questions regarding the course, feel free to ask in the matrix chat or via email to the teacher of the course.

Schedule and Location

The course is taught in two sessions per week, one on Tuesdays DS2 (9.20-10.50) and Wednesdays DS3 (11.10-12.40). All the sessions take place in APB E005. We're currently planning the course sessions as on-site events. If necessary, we can retract to an Online mode, probably using Zoom. Exercises are intertwined with the lecture.

Acknowledgments

The first part of the lecture is based on the exposition Introduction to Bisimulation and Coinduction by Davide Sangiorgi. The slides Davide provides were an inspiration for the lecture material. The slides titled Part II have previously been used in lectures on coinduction.
  • Aceto, L., Ingólfsdóttir, A., Larsen, K. G., & Srba, J. (2007). Reactive Systems. Cambridge University Press.
  • Sangiorgi, D., & Walker, D. (2003). The pi-calculus: a theory of mobile processes. Cambridge University Press.
  • Sangiorgi, D. (2012). Introduction to bisimulation and coinduction. Cambridge University Press.
  • Milner, R. (1980). A calculus of communicating systems. : Springer Berlin Heidelberg.
  • Milner, R. (1999). Communicating and mobile systems. : Cambridge University Press.
  • Davide Sangiorgi (2012). Advanced topics in bisimulation and coinduction. : Cambridge University Press.
  • Reisig, W. (2013). Understanding Petri Nets. : Springer Berlin Heidelberg.

Subscribe to events of this course (icalendar)

Lecture Introduction and Motivation: Labeled Transition Systems DS2, April 9, 2024 in APB E005 File
Lecture Towards Bisimilarity DS3, April 10, 2024 in APB E005 File
Lecture Semantics of Programming Languages DS2, April 16, 2024 in APB E005 File
No session --- DS3, April 17, 2024 in APB E005
Lecture Direct Style Semantics DS2, April 23, 2024 in APB E005 File
Exercise Bisimulation and Bisimilarity DS3, April 24, 2024 in APB E005 File
Exercise Domains and Fixed Points DS2, April 30, 2024 in APB E005 File
No session Labor Day DS3, May 1, 2024 in APB E005
Lecture Structural Operational Semantics DS2, May 7, 2024 in APB E005 File
Exercise Domains and Fixed Points DS3, May 8, 2024 in APB E005 File
Lecture Algebraic Properties of Bisimilarity DS2, May 14, 2024 in APB E005
Exercise Operational Semantics DS3, May 15, 2024 in APB E005 File
No session Pentacost Week DS2, May 21, 2024 in APB E005
No session Pentacost Week DS3, May 22, 2024 in APB E005
Lecture The Untold Story of Hennessy and Milner DS2, May 28, 2024 in APB E005 File
Exercise The Calculus of Communicating Systems DS3, May 29, 2024 in APB E005 File
Lecture Decidability of Bisimilarity DS2, June 4, 2024 in APB E005
No session Dies Academicus DS3, June 5, 2024 in APB E005
Lecture Ptime Bisimilarity Algorithms DS2, June 11, 2024 in APB E005
Exercise Towards P-Completeness of Bisimilarity DS3, June 12, 2024 in APB E005
Lecture Decidability of Bisimilarity for Infinite-State Processes DS2, June 18, 2024 in APB E005
No session no exercise DS3, June 19, 2024 in APB E005
Lecture Decidability & Undecidability of Bisimilarity for Infinite State Processes DS2, June 25, 2024 in APB E005
Exercise CCS, BPP, and Petri Net Programs DS3, June 26, 2024 in APB E005
Lecture Immerman und Szelepcsényi on Steroids DS2, July 2, 2024 in APB E005
Exercise Inductive Counting with Petri Net Programs DS3, July 3, 2024 in APB E005
Lecture Bisimilarity Roundup: Induction and Coinduction DS2, July 9, 2024 in APB E005
Exercise tba DS3, July 10, 2024 in APB E005
Lecture Bisimilarity and Coinduction Continued DS2, July 16, 2024 in APB E005
Exercise Summary and Outlook DS3, July 17, 2024 in APB E005


Calendar