Categories

A
Algebraic Curves and Surfaces
B
Combinatorical Geometry
C
Topology
D
Kinematics and Mechanics
E
Differential Geometry
F
Algebra
G
Analysis, Probability Theory
H
Theory of Functions of Complex Variables
I
Riemann surfaces
II
Conformal maps
III
Real and imaginary parts of some functions
IV
Automorphic functions
V
Surfaces and charts of the absolute value of some functions
VI
Elliptic functions
XX
Others
J
Differential Equations, Wave Theory
K
Geometrical Optics
L
Instruments and Devices.
M
History of Mathematis and Astronomy
Z
Other

Models of rubric: Surfaces and charts of the absolute value of some functions