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CONTENTS
Editor’s Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
Section I. Pages from A.A. Lyapunov’s Life
. . . . . . . . . . . . . . . .
15
Essay on Scientific, Educational, and Social Activities
of A.A. Lyapunov . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
Section II. А.А. Lyapunov on His Teachers, Colleagues, Pupils
. .
35
Nikolay Nikolaevich Luzin. Moscow Mathematical School.
Descriptive set theory [1936] . . . . . . . . . . . . . . . . . . . . .
37
The First Volume of N.N. Luzin’s Works [1954] . . . . . . . . . .
46
In Memory of Pyotr Petrovich Lazarev [1956] . . . . . . . . . . . .
49
Pyotr Sergeevich Novikov (on the 50
th
Anniversary). [1952] . .
60
Ludmila Vsevolodovna Keldysh (on the 50
th 
Anniversary).
[1955] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
65
An Important Contribution to Mathematics
(together with 
S.V. Yablonsky
). [1957] . . . . . . . . . . . . . . .
73
Andrey Petrovich Ershov (Review on the Thesis). [1958] . . . .
77
On the Foundation and the Style of Modern Mathematics.
Regarding the article by N. Bourbaki. [1958]. . . . . . . . . . .
78
Foreword to I.A. Melchuk’s Book: “Automatic parsing”.
[1964] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
81
Discrete Analysis (on Yu.I. Zhuravlyov’ Works ). [1965] . . . . .
84
In Memory of Michael L. Tsetlin (1966). [1966] . . . . . . . . . .
87
Andrey Makarovich Emme. [1967] . . . . . . . . . . . . . . . . . . . .
89
Preface to the 16
th
Iissue of “Problems of Cybernetics” Dedi-
cated to the Memory of I.I. Schmalhausen [1966] . . . . . . .
91
About the Cybernetic Cycle of Works by Ivan Ivanovich
Schmalhausen (Preface to His Monograph (together with 
R.L. Berg
). [1968] . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
92
Pyotr Sergeevich Novikov (On the 70
th
Anniversary). [1971] . . 104
Review of Scientific Activities of A.P. Ershov. [1972] . . . . . . . 117
The Works of P.S. Novikov in the Field of Descriptive Set
Theory. [1973] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
About Pyotr Sergeevich Novikov 
–
a Scientist, a Teacher, and
a Man. [1971] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
About Grigory Alexandrovich Gamburtsev. [1973] . . . . . . . . . 140