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Hi! I’m Antonin Callard and I’m a second-year PhD student on symbol dynamics, computability and group theory in Caen (France). If you want to learn more about me (or get my email address), you can visit this page. If you want to read my personal blog, you can go here. In any case, welcome!


Upcoming activities

In May 2024, I will attend 2024’s Journées SDA2 in Orléans, the yearly meeting of the French community researching symbolic dynamics. Many close friends of mine will also defend their PhD in the weeks to come, so you may meet me there!

Recent activities

This website recently got a terrific backend update: more details are available in the dedicated blog post!

On the science side of things, I’ve recently been working with Léo Paviet Salomon and Pascal Vanier on extender sets of multidimensional subshifts. In particular, we computationally characterized the possible values of extender entropies (i.e. the asymptotic growth of the extender set sequence) of sofic and effective $\Z^d$ subshifts. A draft is available on arXiv, and comments are much welcome!

Current research

Under the supervision of Pascal Vanier, I am currently considering how we can prove soficness of subshifts using the fixpoint construction. I also try to draw parallels between group theory and symbolic dynamics by considering the computability of growth-related quantities of finitely and recursively presented groups.