Recent progress in theoretical description of dissociative recombination of polyatomic molecular ions*

In the presentation, I will give a short overview of recent progress in theoretical description of dissociative recombination of electrons with molecular ions at energies below a few eV. The theory, based on first principles only, is now able to give reliable cross sections of the process for ions having up to approximately ten atoms. A reliable theoretical description of this and other processes, taking place in electron-molecule collisions, is crucial for various applications, where molecular plasma is involved.