private BottomiumVector CalculateReducedInitialQQPopulations( BottomiumVector qgpSuppressionFactors ) { BottomiumVector initialPops = CalculateInitialQQPopulations(); BottomiumCascadeMatrix qgpSuppressionMatrix = BottomiumCascadeMatrix.CreateDiagonalMatrix(qgpSuppressionFactors); return(qgpSuppressionMatrix * initialPops); }