Примеры использования Four vertices на Английском языке и их переводы на Русский язык
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This implies that G is connected andhas at least four vertices.
On an ellipse, two of the four vertices lie on the major axis and two lie on the minor axis.
For the partial 2-trees the single forbidden minor is the complete graph on four vertices.
The complete graphs on three and four vertices, K3 and K4, are both Apollonian networks.
It is not known whether any point in the plane is a rational distance from all four vertices of the unit square?
C4 is a cycle of four vertices and 2K2 is its complement, that is, two disjoint edges.
The sole obstruction for the set of paths is the tree with four vertices, one of which has degree 3.
The other four vertices exist at alternate corners of a central cube a demicube, in this case a tetrahedron.
Since two crossing edges must have four vertices in the same plane, this can never happen.
The sides of the square are not parts of the polygon butare drawn purely to help visually relate the four vertices.
In an Apollonian network, every maximal clique is a complete graph on four vertices, formed by choosing any vertex and its three earlier neighbors.
Finally, every crossing in the diagram of G has a probability p4 of remaining in H,since every crossing involves four vertices.
In the other direction,if a bipartite graph with 14 edges has four vertices on each side, then two vertices on each side must have degree four. .
The sphericon is a solid that has a continuous developable surface with two congruent semi circular edges, and four vertices that define a square.
Then, if the remaining four vertices are placed at the four points whose x and y coordinates are combinations of 1/3 and 2/3, as in the figure, the result will be a Tutte embedding.
Antiprismatic graphs, a class of dense graphs defined as the claw-free graphs in which every four vertices induce a subgraph with at least two edges.
They are the graphs in which, for every four vertices u, v, w, and x, at least two of the three sums of distances d(u, v)+d(w, x), d(u, w)+d(v, x), and d(u, x)+d(v, w) are equal to each other.
This theorem is analogous to the four-vertex theorem,that every smooth simple closed curve in the plane has four vertices extreme points of curvature.
Among any four vertices of the Schönhardt polyhedron, at least one pair of vertices from these four vertices must be a diagonal of the polyhedron, which lies entirely outside the polyhedron.
The parts of the unit cube that remain, after emptying this hole, form two triangular prisms and two irregular tetrahedra,connected by thin bridges at the four vertices of the square.
Removing these four vertices and their 12 incident edges leaves a nonempty set of edges, any of which together with the four removed vertices forms a K3,3 subgraph.
Yes, they are all finite, specifically, There is the cube, with six square faces, twelve edges and eight vertices, and the hemi-cube, with three faces,six edges and four vertices.
An ordering π has this property exactly when there do not exist four vertices a, b, c, and d for which abcd is an induced path, a appears before b in the ordering, and c appears after d in the ordering.
The Moser spindle may also be constructed graph-theoretically, without reference to a geometric embedding,using the Hajós construction starting with two complete graphs on four vertices.
The case of z(4; 3) is relatively simple:a 13-edge bipartite graph with four vertices on each side of the bipartition, and no K3,3 subgraph, may be obtained by adding one of the long diagonals to the graph of a cube.
If a tournament is regular(each competitor has the same number of wins and losses as each other competitor) then it is also edge-pancyclic; however,a strong tournament with four vertices cannot be edge-pancyclic.
An ellipse has exactly four vertices: two local maxima of curvature where it is crossed by the major axis of the ellipse, and two local minima of curvature where it is crossed by the minor axis.
These two tetrahedra can be completed to a desmic system of three tetrahedra,where the third tetrahedron has as its four vertices the three crossing points at infinity and the centroid of the two finite tetrahedra.
The tetrahedron has four vertices and it lies in dimension 3. It is tempting to think that the sequence continues and that there is an object in 4 dimensionalspace that has five verticesand that continues the sequence.