I am a postdoc at Uppsala University. Previously, I was a postdoc at the University of Verona. In 2020 I was an INdAM fellow at the University of Padova. I am interested in homological algebra and representation theory. I completed my PhD at City, University of London in 2017, supervised by Markus Linckelmann. I spent the following years as a postdoc in London, Oberwolfach, Stuttgart and Murcia.

Email: lleonard[dot]rubio[at]math[dot]uu[dot]se

**Publications**

- Briggs, B., Rubio y Degrassi, L.
*Stable invariance of the restricted Lie algebra structure of Hochschild cohomology*, to appear in Pacific Journal of Mathematics, (2022) arXiv link. - Rubio y Degrassi, L., Schroll, S., Solotar, A.
*The first Hochschild cohomology as a Lie algebra*, Quaestiones Mathematicae, (2022) arXiv link. - Briggs, B., Rubio y Degrassi, L.
*Maximal Tori in HH*, International Mathematics Research Notices, (2022) arXiv link.^{1}and the fundamental group - Linckelmann, M., Rubio y Degrassi, L.
*On the Lie algebra structure of HH*, Proceedings of the American Mathematical Society, (2020) arXiv link.^{1}(A) of a finite-dimensional algebra A - Linckelmann, M., Rubio y Degrassi, L.
*Block algebras with HH*The Quarterly Journal of Mathematics, (2018) arXiv link.^{1}a simple Lie algebra, - Rubio y Degrassi, L.
*Invariance of the restricted p-power map on integrable derivations under stable equivalences*, Journal of Algebra, (2017) arXiv link.

**Preprints**

- Briggs, B., Rubio y Degrassi, L.
*On the Lie algebra structure of integrable derivations*, (2022) arXiv link, submitted. - Liu, Y., Rubio y Degrassi, L., Wen, C.
*The Hochschild cohomology groups under gluing idempotents*, (2022) arXiv link, submitted.

**Collaborators**

Benjamin Briggs, Giovanna Carnovale, Francesco Esposito, Markus Linckelmann, Yuming Liu, Sibylle Schroll, Andrea Solotar, Can Wen.