Karl
Weierstrass

Universität Berlin


Ernst Eduard
Kummer

Universität Berlin (MathTree)




Nicolai Vasilievich
Bugaev

Moscow State University (MathTree)


Dimitri Fedorowitsch
Egorov

Moscow State University (MathTree)


Nikolai Nikolayevich
Luzin

Moscow State University (MathTree)

Mikhail Alekseevich
Lavrentyev

Moscow State University
(Options)

N S
Landkof

Kharkov University

Yakov S.
Shifrin

Kharkov National University of Radio Electronics (NURE)

Mstislav Vsevolodovich
Keldysh

Steklov Institute of Mathematics (MathTree)

Sergei Nikitovich
Mergelyan

Steklov Institute of Mathematics (MathTree)

Mikhail LavrentyevX