Fulkerson–Chen–Anstee (Digraph Realization Problem Graph Realization Problems)

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Revision as of 11:16, 15 February 2023 by Admin (talk | contribs) (Created page with "== Time Complexity == $O(n)$ == Space Complexity == $O({1})$ words (Derived: Checking an inequality that involves 3 summations, of max value $O(n^2)$ each (assuming max degree $\leq n$) which is $O(1)$ words in our Word RAM. We check this inequality for each $k = 1, \ldots, n$, but you can store the summations dynamically, so you only need to run $O(1)$ operations per iteration) == Description == Makes use of (0,1) matrix properties, checks a property of the inp...")
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Time Complexity

$O(n)$

Space Complexity

$O({1})$ words

(Derived: Checking an inequality that involves 3 summations, of max value $O(n^2)$ each (assuming max degree $\leq n$) which is $O(1)$ words in our Word RAM. We check this inequality for each $k = 1, \ldots, n$, but you can store the summations dynamically, so you only need to run $O(1)$ operations per iteration)

Description

Makes use of (0,1) matrix properties, checks a property of the input values through the lens of an adjacency matrix

Approximate?

Exact

Randomized?

No, deterministic

Model of Computation

Word RAM

Year

1982

Reference

https://www.cambridge.org/core/journals/canadian-journal-of-mathematics/article/properties-of-a-class-of-01matrices-covering-a-given-matrix/9A3857D219511017536142BD7F132C91