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There are
several conjectures known as the
Hadwiger conjecture or
Hadwiger's conjecture. They include:
Hadwiger conjecture (graph theory), a relationship...
- Hugo
Hadwiger (23
December 1908 in Karlsruhe,
Germany – 29
October 1981 in Bern, Switzerland) was a
Swiss mathematician,
known for his work in geometry...
- a minor? (more
unsolved problems in mathematics) In
graph theory, the
Hadwiger conjecture states that if G {\displaystyle G} is
loopless and has no K...
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based on
properties that it
shares with a
different graph parameter, the
Hadwiger number.
Later it was
again rediscovered by Neil
Robertson and Paul Seymour (1984)...
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problems in mathematics) In
geometric graph theory, the
Hadwiger–Nelson problem,
named after Hugo
Hadwiger and
Edward Nelson, asks for the
minimum number of...
- In
graph theory, the
Hadwiger number of an
undirected graph G is the size of the
largest complete graph that can be
obtained by
contracting edges of G...
- The Finsler–
Hadwiger theorem is
statement in
Euclidean plane geometry that
describes a
third square derived from any two
squares that
share a vertex. The...
- theory),
Hadwiger's theorem characterises the
valuations on
convex bodies in R n . {\displaystyle \mathbb {R} ^{n}.} It was
proved by Hugo
Hadwiger. Let K...
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different Hadwiger conjecture concerning graph coloring—and in some
sources the
geometric Hadwiger conjecture is also
called the Levi–
Hadwiger conjecture...
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snark in
modern terminology) must be non-planar. In 1943, Hugo
Hadwiger formulated the
Hadwiger conjecture, a far-reaching
generalization of the four-color...
