-
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...
-
geometry problem of
computing the
smallest circle that
contains all of a
given set of
points in the
Euclidean plane. The
corresponding problem in n-dimensional...
- 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...
- "half-
plane problem",
originally solved by
Arnold Sommerfeld using a
plane wave
spectrum formulation. A
generalization of the half-
plane problem is the...
-
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...
-
utility companies on a
plane. When
posing it in the
early 20th century,
Henry Dudeney wrote that it was
already an old
problem. It is an
impossible puzzle:...
-
Unsolved problem in
mathematics Is
there a
dense set of
points in the
plane at
rational distances from each other? More
unsolved problems in mathematics...
- Tarski's circle-squaring
problem is the challenge,
posed by
Alfred Tarski in 1925, to take a disc in the
plane, cut it into
finitely many pieces, and...
- In physics,
specifically classical mechanics, the three-body
problem is to take the
initial positions and
velocities (or momenta) of
three point m****es...
