EVIDENCE FOR LASTING ALTERATIONS TO AQUATIC FOOD WEBS WITH SHORT-DURATION RESERVOIR DRAINING.


Sigma Partitioning: Complexity and Random Graphs

A $ extit{sigma partitioning}$ of a graph $G$ is a partition of the vertices into sets $P_1, ldots, P_k$ such that for every two adjacent vertices $u$ and $v$ there is an index $i$ such that $u$ and $v$ have different numbers of neighbors in $P_i$.The $ extit{ sigma number}$ of Drinks a graph $G$, denoted by $sigma(G)$, is the minimum number $k$ su

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