General Graph MCM: Difference between revisions

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== Parameters ==  
== Parameters ==  


V: number of vertices
$V$: number of vertices


E: number of edges
$E$: number of edges


== Table of Algorithms ==  
== Table of Algorithms ==  
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| [[Micali and Vazirani ( Maximum Cardinality Matching)|Micali and Vazirani]] || 1980 || $O(V^{0.5} E)$ || $O(V)$ ||  || Deterministic || [https://dl.acm.org/doi/10.1109/SFCS.1980.12 Time] & [https://link.springer.com/content/pdf/10.1007/PL00009186.pdf Space]
| [[Micali and Vazirani ( Maximum Cardinality Matching)|Micali and Vazirani]] || 1980 || $O(V^{0.5} E)$ || $O(V)$ ||  || Deterministic || [https://ieeexplore.ieee.org/document/4567800 Time] & [https://link.springer.com/content/pdf/10.1007/PL00009186.pdf Space]
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| [[Blum (General Graph MCM Maximum Cardinality Matching)|Blum]] || 1990 || $O((V^{0.5})$E) || $O(E)$ auxiliary?? || Exact || Deterministic || [https://web.eecs.umich.edu/~pettie/matching/Blum-matching-ICALP90.pdf Time]
| [[Blum (General Graph MCM Maximum Cardinality Matching)|Blum]] || 1990 || $O((V^{0.5})$E) || $O(E)$?? || Exact || Deterministic || [https://web.eecs.umich.edu/~pettie/matching/Blum-matching-ICALP90.pdf Time]
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| [[Gabow; Tarjan (General Graph MCM Maximum Cardinality Matching)|Gabow; Tarjan]] || 1991 || $O((V^{0.5})$E) || $O(E)$ auxiliary? || Exact || Deterministic || [https://web.eecs.umich.edu/~pettie/matching/Gabow-Tarjan-scaling-general-graph-matching.pdf Time & Space]
| [[Gabow; Tarjan (General Graph MCM Maximum Cardinality Matching)|Gabow; Tarjan]] || 1991 || $O((V^{0.5})$E) || $O(E)$? || Exact || Deterministic || [https://web.eecs.umich.edu/~pettie/matching/Gabow-Tarjan-scaling-general-graph-matching.pdf Time & Space]
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| [[Mucha, Sankowski (general) (General Graph MCM Maximum Cardinality Matching)|Mucha, Sankowski (general)]] || 2004 || $O(V^{2.{37}6})$ || $O(V^{2})$?? || Exact || Randomized || [https://ieeexplore.ieee.org/document/1366244 Time]
| [[Mucha, Sankowski (general) (General Graph MCM Maximum Cardinality Matching)|Mucha, Sankowski (general)]] || 2004 || $O(V^{2.{37}6})$ || $O(V^{2})$?? || Exact || Randomized || [https://ieeexplore.ieee.org/document/1366244 Time]

Revision as of 08:52, 10 April 2023

Description

The goal of maximum cardinality matching is to find a matching with as many edges as possible (equivalently: a matching that covers as many vertices as possible). Here, the graph can be any general graph.

Related Problems

Subproblem: Bipartite Graph MCM

Related: Planar Bipartite Graph Perfect Matching

Parameters

$V$: number of vertices

$E$: number of edges

Table of Algorithms

Name Year Time Space Approximation Factor Model Reference
Micali and Vazirani 1980 $O(V^{0.5} E)$ $O(V)$ Deterministic Time & Space
Blum 1990 $O((V^{0.5})$E) $O(E)$?? Exact Deterministic Time
Gabow; Tarjan 1991 $O((V^{0.5})$E) $O(E)$? Exact Deterministic Time & Space
Mucha, Sankowski (general) 2004 $O(V^{2.{37}6})$ $O(V^{2})$?? Exact Randomized Time

Time Complexity Graph

Maximum Cardinality Matching - General Graph MCM - Time.png

Space Complexity Graph

Maximum Cardinality Matching - General Graph MCM - Space.png

Time-Space Tradeoff

Maximum Cardinality Matching - General Graph MCM - Pareto Frontier.png