Renat Abugaliev. "Cohomology of subgroups of the Cremona group". Smail Temirlan. "Finite subgroups of the automorphism group of del Pezzo surfaces of degree one and two over the complex and rational numbers"

Renat Abugaliev.
Let $X$ be a rational surface and $G$ acts on $X$. I will talk about the first cohomology group of $G$ with coefficients in $\mathrm{Pic}\, X$.
Smail Temirlan.
In this work we will consider some results connected with classification of finite subgroups of automorphism group of del Pezzo surfaces of degree one and two.