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401-3905-57L 7 Credits BSC , MSC D-MATH

Topics in Mathematics of Computer Science: Expander Graphs

Lecturers & Examiners: Dr. Maurice Cochand
VVZ CR n/a

Last Updated: 2026-02-05 15:13:59

Abstract

In a first part we present both constructions and applications of expander graphs. These are graphs with few edges, but nevertheless very well connected. Said differently, all subsets of nodes have "many" neighbours, a property that is related to the eigenvalues of the adjacency matrix of the graph.

Objective

A first goal of the lecture is to sensibilize students in Mathematics to some settings typical from Theoretical Computer Science. A second goal is to illustrate how tools from classical Mathematics (linear algebra, Fourier analysis, ...) have been applied to deal with some problems in both graph theory and omplexity theory .

Content

The lecture will discuss both constructions and applications of expander graphs. These are graphs with few edges, but nevertheless very well connected. Said differently, all subsets of nodes have "many" neighbours, a property that is related to the eigenvalues of the adjacency matrix of the graph.

General Information

Language
English
Levels
BSC , MSC
Frequency
Yearly recurring

Examination

Type
session examination
Mode
oral 20 minutes

Course Components

Type Title Time & Place Hours
lecture Topics in Mathematics of Computer Science: Expander Graphs
  • Tue 15:15-17:00 (HG E 33.1)
2 h weekly
exercise Topics in Mathematics of Computer Science: Expander Graphs
  • Tue 14:15-15:00 (HG D 5.3)
1 h weekly

Offered In