The Computational Complexity of 3k-CLIQUE: Difference between revisions

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Research Question: What is the minimum time complexity required for a deterministic and exact algorithm to solve the 3k-CLIQUE problem on a classical computer?
Research Question: What is the minimum time complexity required for a deterministic and exact algorithm to solve the 3k-CLIQUE problem on a classical computer?


Methodology: The study uses a graph theoretical approach to solve the 3k-CLIQUE problem. It proposes a method to convert the original graph into an auxiliary graph with a specific structure. The 3k-CLIQUE problem on the original graph is then reduced to determining if there is a nonzero entry in the product of the adjacency matrices of the auxiliary graph.
Methodology: The study uses an auxiliary graph technique to reduce the 3k-CLIQUE problem to the 3-CLIQUE problem, which is then solved using existing algorithms. The time complexity of these algorithms is then used to derive the lower bound for the 3k-CLIQUE problem.


Results: The main result is that the fastest deterministic and exact algorithm that solves the 3k-CLIQUE problem must run in Ω( n2k) time in the worst-case scenario on a classical computer, where n is the number of vertices in the graph. This lower bound is confirmed by the fact that the fastest known deterministic and exact algorithm that solves 3k-CLIQUE was published in 1985 and has a running time of Θ( nωk), where ω ≥ 2.
Results: The research finds that the fastest deterministic and exact algorithm that solves the 3k-CLIQUE problem must run in Ω(n2k) time in the worst-case scenario on a classical computer, where n is the number of vertices in the graph.


Implications: This research has implications for the field of computational complexity, as it provides a lower bound on the time complexity of solving the 3k-CLIQUE problem. It also contributes to the ongoing discussion about the relationship between P and NP, as the lower bound implies that P/NP ≠ P.
Implications: This result implies that the problem of finding a clique of size 3k in a graph is computationally hard, as it requires at least Ω(n2k) time in the worst-case scenario. This lower bound is confirmed by the fact that the fastest known deterministic and exact algorithm that solves 3k-CLIQUE has a running time of Θ(nωk), where ω ≥ 2.


Link to Article: https://arxiv.org/abs/0310060v11
Significance: This research contributes to the understanding of the computational complexity of graph problems and provides a lower bound for the 3k-CLIQUE problem, which is useful for comparing the efficiency of different algorithms.
 
Link to Article: https://arxiv.org/abs/0310060v9
Authors:  
Authors:  
arXiv ID: 0310060v11
arXiv ID: 0310060v9


[[Category:Computer Science]]
[[Category:Computer Science]]
[[Category:Clique]]
[[Category:3K]]
[[Category:3K]]
[[Category:Clique]]
[[Category:Graph]]
[[Category:Problem]]
[[Category:Problem]]
[[Category:Time]]
[[Category:Complexity]]
[[Category:Complexity]]

Latest revision as of 14:48, 24 December 2023

Title: The Computational Complexity of 3k-CLIQUE

Research Question: What is the minimum time complexity required for a deterministic and exact algorithm to solve the 3k-CLIQUE problem on a classical computer?

Methodology: The study uses an auxiliary graph technique to reduce the 3k-CLIQUE problem to the 3-CLIQUE problem, which is then solved using existing algorithms. The time complexity of these algorithms is then used to derive the lower bound for the 3k-CLIQUE problem.

Results: The research finds that the fastest deterministic and exact algorithm that solves the 3k-CLIQUE problem must run in Ω(n2k) time in the worst-case scenario on a classical computer, where n is the number of vertices in the graph.

Implications: This result implies that the problem of finding a clique of size 3k in a graph is computationally hard, as it requires at least Ω(n2k) time in the worst-case scenario. This lower bound is confirmed by the fact that the fastest known deterministic and exact algorithm that solves 3k-CLIQUE has a running time of Θ(nωk), where ω ≥ 2.

Significance: This research contributes to the understanding of the computational complexity of graph problems and provides a lower bound for the 3k-CLIQUE problem, which is useful for comparing the efficiency of different algorithms.

Link to Article: https://arxiv.org/abs/0310060v9 Authors: arXiv ID: 0310060v9