• SJSU Singular Matrix Database

    SJSU Singular Matrix Database: JGD_Margulies group.

  • Click here for a description of the JGD_Margulies group.
  • Click here for a list of all matrix groups.

    singular
    value
    spectrum
    thumbnail
    Group /
    Name
    SJid down-
    load
    # rows # cols struct.
    rank
    num.
    rank
    dim
    null
    space
    num.
    rank /
    min(m,n)
    condest gap nnz /
    (m*n)
    type
    JGD_Margulies/cat_ears_2_1 JGD_Margulies/
    cat_ears_2_1
    567 MAT,
    MM,
    RB
    85 85 82 74 11 0.8706 Inf 3.6e+014 4% binary
    unsym.
    JGD_Margulies/cat_ears_3_1 JGD_Margulies/
    cat_ears_3_1
    586 MAT,
    MM,
    RB
    204 181 175 165 16 0.9116 ? 1.7e+014 1% binary
    rect.
    JGD_Margulies/cat_ears_4_1 JGD_Margulies/
    cat_ears_4_1
    596 MAT,
    MM,
    RB
    377 313 304 291 22 0.9297 ? 8.9e+013 0.79% binary
    rect.
    JGD_Margulies/flower_4_1 JGD_Margulies/
    flower_4_1
    572 MAT,
    MM,
    RB
    121 129 121 108 21 0.8926 ? 3.3e+014 2% binary
    rect.
    JGD_Margulies/flower_5_1 JGD_Margulies/
    flower_5_1
    588 MAT,
    MM,
    RB
    211 201 191 179 22 0.8905 ? 1.7e+014 1% binary
    rect.
    JGD_Margulies/flower_7_1 JGD_Margulies/
    flower_7_1
    603 MAT,
    MM,
    RB
    463 393 379 363 30 0.9237 ? 9.6e+013 0.65% binary
    rect.
    JGD_Margulies/flower_8_1 JGD_Margulies/
    flower_8_1
    606 MAT,
    MM,
    RB
    625 513 497 479 34 0.9337 ? 7.9e+013 0.48% binary
    rect.
    JGD_Margulies/kneser_6_2_1 JGD_Margulies/
    kneser_6_2_1
    614 MAT,
    MM,
    RB
    601 676 601 540 136 0.8985 ? 1.5e+014 0.5% binary
    rect.
    JGD_Margulies/wheel_3_1 JGD_Margulies/
    wheel_3_1
    551 MAT,
    MM,
    RB
    21 25 21 20 5 0.9524 ? 2.7e+015 14% binary
    rect.
    JGD_Margulies/wheel_4_1 JGD_Margulies/
    wheel_4_1
    555 MAT,
    MM,
    RB
    36 41 36 32 9 0.8889 ? 1.1e+015 8% binary
    rect.
    JGD_Margulies/wheel_5_1 JGD_Margulies/
    wheel_5_1
    559 MAT,
    MM,
    RB
    57 61 57 51 10 0.8947 ? 5.9e+014 5% binary
    rect.
    JGD_Margulies/wheel_6_1 JGD_Margulies/
    wheel_6_1
    566 MAT,
    MM,
    RB
    83 85 80 72 13 0.8675 ? 4.6e+014 4% binary
    rect.
    JGD_Margulies/wheel_7_1 JGD_Margulies/
    wheel_7_1
    571 MAT,
    MM,
    RB
    114 113 107 99 14 0.8761 ? 2.5e+014 3% binary
    rect.

    Maintained by Leslie Foster, last updated 16-Feb-2009.
    See SJget to download directly into MATLAB.