# Blog (p. 5/5)

## List of Facts

Published .  math

I just started a list of facts , mainly rather classical facts that I don't want to forget. Before, that list lived on sheets of papers strewn across my desk, which was clearly not optimal. Now it's in a more permanent form. Update: I haven't…

## The Milnor–Moore Theorem

Published .  algtop  math

This post is about the Milnor--Moore theorem, a powerful tool describing the structure of (co)commutative Hopf algebras. Like the Eckmann--Hilton argument , it shows that having multiple compatible operations on the same object can lead to…

## Paper Accepted!

Published .  operads  paper

My first article has been accepted for publication with minor revisions! Entitled "Opérades et structures commutatives à homotopie près" (yes, it's in French), it will appear in the Graduate Student Mathematical Diary , edited by the Mediterranean…

## Acyclic Models

Published .  algtop  math

The theorem(s) of acyclic models are a rather powerful technique for proving that some functors defined on truncated chain complexes can be extended in higher dimensions, and that two such functors are homotopic, by proving it on a small class of…

## About Abelian Bimodules

Published .  algtop  math  operads

This post is about something somewhat weird I noticed about infinitesimal bimodules over operads and their relationships with some operads. I don't know if it's something significant, and I'd definitely be interested to hear more about it. Context…

## The Eckmann–Hilton Argument

Published .  algtop  math

As promised, this post is about the famous Eckmann--Hilton argument . This argument, on the surface, looks like a simple algebraic trick; but it has deep consequences, which I will now try to explain. This post is an expanded version of a math.SE…

## Hello Everyone!

Published .  code

Hi! If you're reading this, it means I've finally decided to upload my blog, and this is my first post. Me If you don't know me (how did you get here?!) I'm Najib Idrissi, a doctoral student in math at Université Lille 1 . You can also read the…