Recent Publications

We prove that $\operatorname{Aut}(F_n)$ has Kazhdan's property (T) for every $n \geqslant 6$. Together with the previous result of …

We establish a lower bound on the spectral gap of the Laplace operator on some special linear groups using conic optimisation.

We try to integrate group actions to the topological complexity setting, by introducing «jumps» in the planner. This approach is based …

We compute and compare the invariant and equivariant versions of TC for various spaces and ponder what is the right way to introduce …

Experience

 
 
 
 
 

MATH+ postdoc

Technische Universität Berlin

Feb 2019 – Present Berlin, Germany
Approximate Convex Hulls With Bounded Complexity
 
 
 
 
 

Postdoc

Mathematical Institute of Polish Academy of Sciences

Oct 2015 – Nov 2017 Warsaw, Poland
Computational aspects of Kazhdan's property (T)
 
 
 
 
 

Assistant Professor

Faculty of Mathematics and Computer Science of AMU

Oct 2014 – Present Poznań, Poland

Upcoming Talks


Past talks

Recent Posts

Splitting Conic Solver or scs is a well established solver for conic optimization problems. It has bindings to julia via SCS.jl. Part …

Installation The following instructions were prepared using julia-1.1.1. Before exploring the notebook you need to clone the main …

This post documents replication details for paper $\operatorname{Aut}(\mathbb{F}_5)$ has property (T) by M. Kaluba, P.W. Nowak and N. …

This post documents replication details for paper Certifying numerical estimates of spectral gaps by M. Kaluba, P.W. Nowak. Installing …

Contact

  • kalmar@amu.edu.pl
  • (0048 61 829) 5497
  • Room B1-30, Faculty of Mathematics and Computer Science, ul. Uniwersytetu Poznańskiego 4, 61-614 Poznań, Poland
  • Friday 12:00 to 13:00, or appointment by e-mail