- also
known as the
square peg
problem or the Toeplitz' conjecture, is an
unsolved question in geometry: Does
every plane simple closed curve contain all...
-
Outer Plane is one of a
number of
general types of
planes of existence. They can also be
referred to as
godly planes,
spiritual planes, or
divine planes. The...
- His
works solved all
major problems of the
Plane Elasticity Theory opening a wide
class of
domains reducing the
plane problem to
finite systems of linear...
- In geometry, the
tangent line (or
simply tangent) to a
plane curve at a
given point is, intuitively, the
straight line that "just touches" the
curve at...
-
Unsolved problem in mathematics: How many
colors are
needed to
color the
plane so that no two
points at unit
distance are the same color? (more unsolved...
-
plane. No
general rule has been
found for
determining whether a
given shape can tile the
plane or not,
which means there are many
unsolved problems concerning...
- "half-
plane problem",
originally solved by
Arnold Sommerfeld using a
plane wave
spectrum formulation. A
generalization of the half-
plane problem is the...
- mathematics, a
projective plane is a
geometric structure that
extends the
concept of a
plane. In the
ordinary Euclidean plane, two
lines typically intersect...
- the
Euclidean plane, we come to the
problem posed by Jean
Gaston Darboux: "To
determine all the
calculus of
variation problems in the
plane whose solutions...
- In
plane geometry, the
einstein problem asks
about the
existence of a
single prototile that by
itself forms an
aperiodic set of prototiles; that is, a...
