AbstractThe Four Colour Conjecture is reformulated as a statement about non-divisibility of certain binomial coefficients. This reformulation opens a (hypothetical) way of proving the Four Colour Theorem by taking advantage of recent progress in finding closed forms for binomial summations
We study graph colorings of the form made popular by the four-color theorem. Proved by Appel and Hak...
The four color problem was one of the most difficult to prove problems for 150 years. It took severa...
AbstractIt is shown in this paper that a map not colorable in four colors must have at least n=40 co...
AbstractThe Four Colour Conjecture is reformulated as a statement about non-divisibility of certain ...
AbstractThe four-colour theorem, that every loopless planar graph admits a vertex-colouring with at ...
The famous four color theorem states that for all planar graphs, every vertex can be assigned one of...
The four-colour conjecture (4CC) is a question that asks whether any map can be coloured using only ...
In the paper ways in which computers are applied in mathematics are considered. An example of mathem...
The four-colour problem remained unsolved for more than a hundred years has played a role of the utm...
AbstractThe Four Color Conjecture (4CC) is shown to be equivalent with the existence of absolute ret...
The 4 color conjecture was made in 1852 and proved in 1879. However, a flaw was found 11 years late...
As stated originally the four – color problem asked whether it is always possible to color the regio...
The Four-Colour Theorem (4CT) proof, presented to the mathematical community in a pair of ...
AbstractThis paper discusses reformulations of the problem of coloring plane maps with four colors. ...
Although the Four Colour Theorem is passe, we give an elementary pre-formal proof that transparently...
We study graph colorings of the form made popular by the four-color theorem. Proved by Appel and Hak...
The four color problem was one of the most difficult to prove problems for 150 years. It took severa...
AbstractIt is shown in this paper that a map not colorable in four colors must have at least n=40 co...
AbstractThe Four Colour Conjecture is reformulated as a statement about non-divisibility of certain ...
AbstractThe four-colour theorem, that every loopless planar graph admits a vertex-colouring with at ...
The famous four color theorem states that for all planar graphs, every vertex can be assigned one of...
The four-colour conjecture (4CC) is a question that asks whether any map can be coloured using only ...
In the paper ways in which computers are applied in mathematics are considered. An example of mathem...
The four-colour problem remained unsolved for more than a hundred years has played a role of the utm...
AbstractThe Four Color Conjecture (4CC) is shown to be equivalent with the existence of absolute ret...
The 4 color conjecture was made in 1852 and proved in 1879. However, a flaw was found 11 years late...
As stated originally the four – color problem asked whether it is always possible to color the regio...
The Four-Colour Theorem (4CT) proof, presented to the mathematical community in a pair of ...
AbstractThis paper discusses reformulations of the problem of coloring plane maps with four colors. ...
Although the Four Colour Theorem is passe, we give an elementary pre-formal proof that transparently...
We study graph colorings of the form made popular by the four-color theorem. Proved by Appel and Hak...
The four color problem was one of the most difficult to prove problems for 150 years. It took severa...
AbstractIt is shown in this paper that a map not colorable in four colors must have at least n=40 co...
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