In graph theory, the planar separator theorem is a form of isoperimetric inequality for planar graphs, that states that any planar graph can be split into...
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a theorem) states that every planar graph can be represented as an intersection graph of line segments in the plane. The planar separator theorem states...
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for applications in computer science, such as the planar separator theorem. Let S be an (a,b)-separator, that is, a vertex subset that separates two nonadjacent...
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known as diaphragm Planar separator theorem, a theorem in graph theory Vertex separator, a notion in graph theory Geometric separator, a line that separates...
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logically equivalent "past → future" form. Planar separator theorem (graph theory) states that any planar graph can be split into smaller pieces by removing...
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88: 141–164 Lipton, Richard J.; Tarjan, Robert E. (1979), "A separator theorem for planar graphs", SIAM Journal on Applied Mathematics, 36 (2): 177–189...
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dominating set problems for planar graphs are NP-complete, but can be solved in subexponential time using the planar separator theorem. "Each instance of an...
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the planar separator theorem can be used to show that n-vertex planar graphs have universal graphs with O(n3/2) edges, and that bounded-degree planar graphs...
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Personal Storage Table, a file format used in Microsoft applications Planar separator theorem, in graph theory Pocket set theory, in mathematics Post-stall technology...
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(algebra) Perfect graph theorem (graph theory) Perlis theorem (graph theory) Planar separator theorem (graph theory) Pólya enumeration theorem (combinatorics)...
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Shallow minor (section Separator theorems)
excluded shallow minors can be partitioned analogously to the planar separator theorem for planar graphs. In particular, if the complete graph Kh is not a...
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resulting matrix has O(n log n) nonzeros, due to the planar separator theorem guaranteeing separators of size O(√n). For arbitrary graphs there is a nested...
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Isoperimetric inequality (redirect from Isoperimetric theorem)
Isoperimetric dimension Isoperimetric point List of triangle inequalities Planar separator theorem Mixed volume Blåsjö, Viktor (2005). "The Evolution of the Isoperimetric...
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Tarjan, Applications of a Planar Separator Theorem, SIAM J. Comput. 1980 Noga Alon, Paul Seymour, Robin Thomas, A Separator Theorem for Graphs with an Excluded...
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Richard Lipton (section Karp–Lipton theorem)
Prize winner, 2014 SL (complexity) Take-grant protection model Planar separator theorem Richard Lipton at the Mathematics Genealogy Project Lipton, R (1975)...
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proof that such separators can always be found is related to the Planar Separator Theorem of Lipton and Tarjan, and these separators can be located in...
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S2CID 6390600. Lipton, R. J.; Tarjan, R. E. (1980), "Applications of a planar separator theorem", SIAM Journal on Computing, 9 (3): 615–627, doi:10.1137/0209046...
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Additionally, the H-minor-free graphs have a separator theorem similar to the planar separator theorem for planar graphs: for any fixed H, and any n-vertex...
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such as Minkowski's theorem, sphere packing, the representation of planar graphs by tangent circles, the planar separator theorem. The second section...
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Hutchinson (born 1945), American graph theorist who extended the planar separator theorem to graphs of higher genus Marie Hušková (born 1942), Czech mathematician...
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in geometric graphs. The planar separator theorem may be proven by using the circle packing theorem to represent a planar graph as the contact graph...
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Book embedding (section Planarity and outerplanarity)
Because graphs of book thickness two are planar graphs, they obey the planar separator theorem: they have separators, subsets of vertices whose removal splits...
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results: (with Noga Alon) a separator theorem for graphs with an excluded minor, extending the planar separator theorem of Richard Lipton and Robert...
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forbidden induced minors for string graphs. Analogously to the planar separator theorem, every m {\displaystyle m} -edge string graph can be partitioned...
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In graph theory, approximate max-flow min-cut theorems concern the relationship between the maximum flow rate (max-flow) and the minimum cut (min-cut)...
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subgraph if it is not. Planarity testing algorithms typically take advantage of theorems in graph theory that characterize the set of planar graphs in terms...
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which a similar separator theorem holds. Since, like planar graphs, the graphs in any fixed minor-closed graph family have separators of size O(√n), it...
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parameters are bounded. In contrast to Fáry's theorem for planar graphs, not every 1-planar graph may be drawn 1-planarly with straight line segments for its edges...
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rectangles. Ravi, S. S.; Hunt, H. B. (1987). "An application of the planar separator theorem to counting problems". Information Processing Letters. 25 (5):...
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finite approximation factor unless P = NP. The planar separator theorem states that any n-vertex planar graph can be partitioned into roughly equal parts...
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