Aggregation schemes for k-cycle AMG

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Maximilian Emans


We examine dierent aggregation schemes for k-cycle AMG. With real-life examples from computational  uid dynamics, we conrm that using aggregates of mainly four nodes results in very ecient methods. However, we show also that the k-cycle aggregation AMG in its known form becomes even more ecient, if simpler aggregation schemes skipping the explicit calculation of intermediate coarse-grid operators are employed. 

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Emans, M. (2015). Aggregation schemes for k-cycle AMG. Proceedings Of The Conference Algoritmy, , 141-150. Retrieved from