Item | Storage |

Search space | -vectors |

Residual | -vector |

Approx. eigenvector | -vector |

Projected system | matrix of order |

Eigenvectors of proj. system | matrix of order |

Correction equation | Depends on selected solver |

Action | Work |

Search basis | dot products, updates in iteration |

Projected system | dots |

Eigensystem projected system | |

Residual | matrix-vector product, update |

or -fold update | |

Approx. eigenvector | -fold update |

Correction equation | Depends on choice of solver |