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2018, Issue 1(85)  


In the Memory of I. Shafarevich
Genius. In the memory of I. Shafarevich
M. I. Zelikin
2

Students and teachers of secondary school
Hyperbola and biquadratic equations
E. G. Smoljanova, N. V. Malyshkina
5
Constructing quadrilaterals with prescribed properties
S. M. Takhayev
10
Equilateral triangle helps to solve a problem
M. A. Tleubergenova
33

Students and teachers of mathematical specialties
Application of linear algebra for transforming 2-nd order PDEs to canonical forms
A. A. Bobodzhanov, V. F. Safonov
38
Systems of ordinary linear differential equations integrable combinations (continued)
V. V. Ivlev, E. A. Krivoshey
47
Algorithms for proving theorems on linear integro-differential equations with analytic functions
V. Muratalieva
52
The formula of change of variables in a double integral as a consequence of the Green formula
S. V. Shvedenko
56
The Grinberg theorem and its application
A. Yu. Evnin
60

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Mathematical Education
 
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