Trending Mathematical Concepts in Russia — September 2026
The 99 most-viewed mathematical concepts on Wikipedia, September 2026 (Russian-language edition). Ranked by real-world attention. Top: Navier–Stokes equations. Data as of 26 October 2026.
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- September 2026 · Data as of 26 October 2026
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- 99 mathematical concepts — drawn from 2,214,593 articles Wikipedia recorded views for in this window
This counts a Wikipedia language edition, not a country's residents — Measured from the Russian-language Wikipedia edition — readers worldwide, not residents of Russia. Nothing here is capped or sampled: it is every view Wikipedia published for these articles in the window. Rows carrying a 📰 badge add news coverage from GDELT; entity names and types come from Wikidata. Looking for what one country read? That is what the world reads — a different, capped measurement.
Where this data comes from ›99
Ranked
402,623
Total Views (September 2026)
1
Navier–Stokes equations
system of nonlinear partial differential equations describing the motion of viscous fluids
52,506
views
views
2
secretary problem
mathematical problem
30,114
views
views
3
pi
constant ratio of the circumference of a circle to its diameter
21,584
views
views
4
Poincaré conjecture
theorem in geometric topology that every simply connected, closed 3-manifold is homeomorphic to the 3-sphere
20,949
views
views
5
Roman numerals
numbers in the Roman numeral system
17,801
views
views
6
Euler's number
mathematical constant; limit of (1 + 1/n)^n as n approaches infinity; transcendental number approximately equal 2.718281828
8,525
views
views
7
Bitcoin
digital cash system and associated currency
8,046
views
views
8
Riemann hypothesis
conjecture in mathematics linked to the repartition of prime numbers
7,746
views
views
9
Fibonacci number
integer in the infinite Fibonacci sequence
7,731
views
views
10
golden ratio
ratio between two quantities whose sum is at the same ratio to the larger one
6,622
views
views
11
Monty Hall problem
mathematical problem
6,218
views
views
12
Occam's razor
philosophical principle evaluating reasoning on the basis of its simplicity
6,202
views
views
13
Hodge conjecture
conjecture in algebraic geometry that every Hodge class on a nonsingular complex projective manifold is a linear combination with rational coefficients of the cohomology classes of complex subvarieties
5,888
views
views
14
P versus NP problem
unsolved problem in computer science about time complexity
5,731
views
views
15
Tetris
1984 tile-matching puzzle video game series
5,631
views
views
16
The Library of Babel
website by Jonathan Basile
5,007
views
views
17
Vitruvian Man
drawing by Leonardo da Vinci
4,732
views
views
18
function
association of a single output to each input
4,598
views
views
19
binary numeral system
system that represents numeric values using two symbols; 0 or 1
4,258
views
views
20
tensor
multilinear map on some combination of scalars, vectors, covectors, and tensors
4,250
views
views
21
Turing test
test of a machine's ability to exhibit intelligent behaviour equivalent to, or indistinguishable from, that of a human
4,189
views
views
22
perceptron
algorithm for supervised learning of binary classifiers
4,165
views
views
23
congruence of integers
relation between two elements differing from a multiple of an element called modulus
4,110
views
views
24
Kardashev scale
Proposed scale by which the scope of a civilisation might be measured
3,744
views
views
25
integral
operation in mathematical calculus
3,654
views
views
26
Gaussian elimination
algorithm for solving systems of linear equations
3,577
views
views
27
mass–energy equivalence
physical law relating mass to energy
3,402
views
views
28
right-hand rule
common mnemonic for understanding orientation of axes in three-dimensional space
3,359
views
views
29
Möbius strip
two-dimensional surface with only one side and only one edge
3,295
views
views
30
Fourier transform
mathematical transform that expresses a function of time as a function of frequency
3,258
views
views
31
Dijkstra's algorithm
graph search algorithm
3,149
views
views
32
correlation
any statistical relationship, whether causal or not, between two random variables or bivariate data
3,084
views
views
33
number
mathematical object used to count, label, and measure
3,064
views
views
34
sudoku
logic-based number-placement puzzle
2,981
views
views
35
Birch and Swinnerton-Dyer conjecture
conjecture
2,928
views
views
36
Exact trigonometric constants
mathematical concept
2,839
views
views
37
birthday problem
mathematical problem
2,821
views
views
38
axiom
statement of a theory that is taken to be true
2,817
views
views
39
Monte Carlo method
broad class of computational algorithms using random sampling to obtain numerical results
2,816
views
views
40
one-time pad
encryption technique utilizing a one-time pre-shared key at least as long as the encrypted message
2,737
views
views
41
Euclidean vector
geometric object that has magnitude (or length) and direction
2,720
views
views
42
von Neumann architecture
computer architecture using a common memory bus and address space for instructions and data
2,642
views
views
43
Riemann zeta function
analytic function
2,624
views
views
44
Cramer's rule
theorem of solving a system of linear equations
2,616
views
views
45
binomial theorem
algebraic expansion of powers of a binomial
2,613
views
views
46
MP3 Audio
open standard lossy compression format for digital audio
2,412
views
views
47
Taylor series
expression of a function as an infinite sum
2,405
views
views
48
Zebra Puzzle
well-known logic puzzle
2,385
views
views
49
Mandelbrot set
fractal-like set that plays a significant role in chaos research
2,245
views
views
50
Platonic solid
convex regular polyhedra with the same number of faces at each vertex
2,068
views
views
51
Ethereum
public blockchain platform with programmable transaction functionality
2,064
views
views
52
Nonogram
picture logic puzzles in which cells in a grid must be colored or left blank according to numbers at the side of the grid to reveal a hidden picture
1,999
views
views
53
map projection
representation of the surface of a sphere or ellipsoid onto a plane map
1,984
views
views
54
Euclidean algorithm
algorithm for computing greatest common divisors
1,932
views
views
55
perpendicularity
property of being at a right angle (90 degrees)
1,930
views
views
56
Fourier series
decomposition of periodic functions into sums of simpler sinusoidal forms
1,929
views
views
57
infinity
mathematical concept of something without any limit
1,906
views
views
58
Hilbert space
inner product space that is metrically complete; a Banach space whose norm induces an inner product (follows the parallelogram identity)
1,889
views
views
59
line
one-dimensional infinite non-curved geometric object
1,886
views
views
60
information entropy
expected value of the amount of information delivered by a message
1,805
views
views
61
decimal
numeral system with ten as its base
1,795
views
views
62
quicksort
divide and conquer sorting algorithm
1,787
views
views
63
Collatz conjecture
conjecture in mathematics that concerns sequences
1,785
views
views
64
wavelength
spatial period of the wave; the distance over which the wave's shape repeats; the inverse of the spatial frequency
1,755
views
views
65
big O notation
form of Landau notation representing asymptotically equivalent or slower growth
1,721
views
views
66
imaginary unit
square root of negative one, used to define complex numbers
1,715
views
views
67
coordinate system
system for determining the position of a point
1,708
views
views
68
Cauchy problem
mathematical problem
1,699
views
views
69
square root of 2
unique positive real number which when multiplied by itself gives 2
1,647
views
views
70
wheat and chessboard problem
mathematical problem
1,622
views
views
71
Laplace operator
divergence of the gradient
1,614
views
views
72
Goldbach's conjecture
Conjecture that every even integer greater than 2 is the sum of two primes
1,542
views
views
73
Vieta's formulas
relations between the coefficients and the roots of a polynomial
1,538
views
views
74
altitude
line segment in a triangle
1,538
views
views
75
Newton's method
algorithm for finding a zero of a function
1,522
views
views
76
Student's t-test
statistical method
1,521
views
views
77
Laplace transform
the integral transform ∫₀^∞ d𝑠 𝑓(𝑡)exp(−𝑠𝑡)
1,519
views
views
78
Horner's method
algorithm for polynomial evaluation
1,509
views
views
79
Kalman filter
algorithm that estimates unknowns from a series of measurements over time
1,487
views
views
80
Seven Bridges of Königsberg
mathematical problem
1,475
views
views
81
travelling salesperson problem
NP-hard problem in combinatorial optimization
1,470
views
views
82
hexadecimal
numeral system with 16 as its base
1,467
views
views
83
group
algebraic set with an invertible, associative internal operation admitting a neutral element
1,462
views
views
84
Ricci flow
flow associated to the partial differential equation ∂𝑔/∂𝑡=−2Ric[𝑔] on a Riemannian manifold
1,447
views
views
85
Minesweeper
logic puzzle video game genre
1,423
views
views
86
Reynolds number
dimensionless quantity that is used to help predict similar flow patterns in different fluid flow situations
1,420
views
views
87
convolution
binary mathematical operation on functions, defined as the integral of the product of two functions after one is reflected about the y-axis and shifted, evaluated for all values of shift, producing the convolution function
1,401
views
views
88
square root
inverse operation of square for finding the original base number; that base number itself
1,388
views
views
89
computus
calculation of the date of Easter
1,381
views
views
90
The Hardest Logic Puzzle Ever
logic puzzle by George Boolos and Raymond Smullyan
1,372
views
views
91
Einstein field equations
field equations in general relativity
1,347
views
views
92
sieve of Eratosthenes
ancient algorithm for generating prime numbers
1,343
views
views
93
Drake equation
probabilistic argument to estimate the number of alien civilizations in our galaxy
1,309
views
views
94
Euler equations
set of quasilinear hyperbolic equations governing adiabatic and inviscid flow
1,300
views
views
95
Пенсионная формула России
1,295
views
views
96
Heron's formula
formula for calculating the area of a triangle
1,294
views
views
97
scientific notation
method of writing numbers, especially very large or small ones
1,284
views
views
98
Tsiolkovsky rocket equation
mathematical equation describing the motion of a rocket
1,272
views
views
99
backpropagation
optimization algorithm for artificial neural networks
1,267
views
views