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Applications of types of SATs Arash Ahadi 2013
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What is SAT?
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What is SAT Problem?
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SAT is NP-complete
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Why 3-SAT is useful?
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An example (in Computational Geometry)
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An important open problem
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Sketch of Proof
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Types of SAT Why do we need another types of SATs?
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Answer by several examples
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Sketch of Proof
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Planar 3-SAT
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Other types and examples?!!
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Labeling of Graphs: Lucky labeling
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Existance
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Hardness
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Sketch of Proof
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What about every k >1?
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Main Reference
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Another type Not All Equal SAT
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Labeling of Graphs: Sigma labeling
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The Relationship between Lucky & Sigma
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They are very different
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Relationship to Chromatic Number
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Complexity for 3-regular graphs
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Sketch of Proof
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Complexity for every k
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Minimizing the size of a Part
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Conclusion
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The Others
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Proper Labeling Problems A.Ahadi and A. Dehghan, Journal of Theoretical Computer Science, in appears.
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Edge Labeling by Sum
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Proper Labeling Problems
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Edge Labeling by Product
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Vertex Labeling by Product
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Edge Labeling by Gap
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Vertex Labeling by Gap
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Polynomial Algorithm
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Fractional Coloring
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The Results (in labelings)
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There are several another theorems…
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Thanks
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