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math.HO2026
The Euclidean algorithm, lotuses and singularities
Patrick Popescu-Pampu
The anthyphairetic process leads from a pair (a,b) of coprime positive integers to the pair (1,1) by successive subtractions of the smaller number from the bigger one. This process…
math.HO2026
An interview with Bernard Teissier
Patrick Popescu-Pampu
This text is a reworked version of a recorded interview with Bernard Teissier conducted in his house in Paris, on 28 and 29 September 2024.
math.HO2018
From Singularities to Graphs
Patrick Popescu-Pampu
In this text I present some problems which led to the introduction of special kinds of graphs as tools for studying singular points of algebraic surfaces. I explain how such graphs…