Ignatov Yurii Aleksandrovich

Publications in Math-Net.Ru

1. Problems on linear algebra at higher school students' olympiads
   
   Math. Ed., 2019, no. 3(91),  26–48
2. Probability theory problems at math olympiads for higher school students
   
   Math. Ed., 2017, no. 4(84),  45–60
3. Free groups of linear-fractional transformations
   
   Chebyshevskii Sb., 3:1 (2002),  78–81
4. Roots of unity as nonfree points of the complex plane
   
   Mat. Zametki, 27:5 (1980),  825–827
5. Groups of linear fractional transformations generated by three elements
   
   Mat. Zametki, 27:4 (1980),  507–513
6. Free and nonfree subgroups of $PSL_2(\mathbf C)$ generated by two parabolic elements
   
   Mat. Sb. (N.S.), 106(148):3(7) (1978),  372–379


7. Graphic method combined with variable replacement method for solving equations
   
   Math. Ed., 2018, no. 4(88),  12–17