## Group Grund

Group Description ```Matrices from Friedrich Grund, WIAS Berlin. Chemical process simulation. -------------------------------------------------------------------------------- To: davis :at the domain: cise.ufl.edu Subject: Matrices to your subdirectory Date: Tue, 07 Oct 97 10:53:02 +0200 From: "F. Grund, WIAS Berlin" I put the files bayer.tar.gz chem.tar.gz poli.tar.gz in your subdirectory pub/faculty/davis/incoming The matrices in bayer.tar.gz are of the german chemical industry (chemical process simulation). In chem.tar.gz you find matrices of demonstration examples of the chemical process simulator SPEEDUP. The two matrices in poli.tar.gz are of account of capital links. The problem is: Determine the inverse matrix of I-A. I is the unity matrix and A a matrix with elements a(i,j) and 0 <= a(i,j) < 1 The elements b(i,j) of B = (I-A)**(-1) are >= 0. These matrices are very sparse and the fill in is very small. Best Regards, Friedrich Grund```
Displaying collection matrices 1 - 20 of 22 in total
Id Name Group Rows Cols Nonzeros
464 d_ss Grund 53 53 144
449 b1_ss Grund 7 7 15
450 b2_ss Grund 1,089 1,089 3,895
451 b_dyn Grund 1,089 1,089 4,144
452 bayer01 Grund 57,735 57,735 275,094
453 bayer02 Grund 13,935 13,935 63,307
454 bayer03 Grund 6,747 6,747 29,195
455 bayer04 Grund 20,545 20,545 85,537
456 bayer05 Grund 3,268 3,268 20,712
457 bayer06 Grund 3,008 3,008 20,715
458 bayer07 Grund 3,268 3,268 20,963
459 bayer08 Grund 3,008 3,008 20,698
460 bayer09 Grund 3,083 3,083 11,767
461 bayer10 Grund 13,436 13,436 71,594
462 d_dyn Grund 87 87 230
463 d_dyn1 Grund 87 87 232
465 meg1 Grund 2,904 2,904 58,142
466 meg4 Grund 5,860 5,860 25,258
467 poli Grund 4,008 4,008 8,188
2278 poli3 Grund 16,955 16,955 37,849