#
**
UR1175/KH0192 - Group Group Sum
**

**Drawings:**

**Group-Group Sum:**

*Click on Image to View Larger*

**Individual Group Group Sums:**-

*Click on column name to sort*

# | Group Group Sum Schema | Group Sum Value | Is Top Group | Is Duplicate Group | Group Position Difference | Left Group Position (1_based index) |
Right Group Position (1_based index) |
Left Sum (1_based index) |
Right Sum (1_based index) |
---|---|---|---|---|---|---|---|---|---|

1 | 49 | False | False | 3 | 30 | 33 | W@[29, 0]:2 + W@[29, 0, 0]:0 + LB@[29, 1]:7 + LB@[29, 1, 0]:10 + YG@[29, 2]:40 + LB@[29, 3]:0 + YB@[29, 4]:0 | W@[32, 0]:3 + W@[32, 0, 0]:0 + LB@[32, 1]:10 + LB@[32, 1, 0]:0 + YG@[32, 2]:16 + YB@[32, 3]:0 + YB@[32, 4]:20 |

**Khipu Notes:**

**Ascher Databook Notes:**

- This is one of several khipus acquired by the Museum in 1907 with provenance Pachacamac. For a list of them, see UR1097.
- By spacing, the khipu is separated into 45 groups of 5 pendants each. There is a larger space after every 3rd group and a still larger space between the 21st and 22nd groups and the 24th and 25th groups. Thus, the khipu is in 3 parts: part 1 is 7 sets of 3 groups each; part 2 is 1 set of 3 groups; and part 3 is 7 sets of 3 groups.
- All groups in part 1 have the same color pattern: W (with a W subsidiary); LB (with an LB subsidiary); YG; YB; YB: 0G. Groups in parts 2 and 3 have the same pattern for the first 3 pendant positions and then vary in one or both of the last 2 positions. Calling the colors in the part 1 pattern C1-C5, the color patterns are summarized in Table 1.

*TABLE 1*

Part 1 (groups 1-21) C1 C2 C3 C4 C5 Part 2 (groups 1-3) C1 C2 C3 C4 C4 Part 3 (groups 1-5) C1 C2 C3 C2 C5 Part 3 (groups 6-8) C1 C2 C3 C2 C4 Part 3 (groups 9-21) C1 C2 C3 C4 C4

In all groups, there is at least one subsidiary on pendants 1 and 2 (a W and an LB respectively) and no subsidiaries on the other positions. Additional subsidiaries on the first 2 positions are, with one exception, KB:W or LB-W.

- In parts 1 and 3, many values are repeated in the same position in consecutive groups or in the same position 2 groups later. The former can be represented as:,

P_{ij}= P_{i+1,j}and the latter as P_{ij}= P_{i+2,j}In part 1, these hold in 20 and 12 places respectively; in part 2 in no places; and in part 3 in 27 and 18 places.

- The values in part 2 are related to the sums of values in part 3. Position by position, values in group 1 of part 2 are related to the sums of values in the first groups in each of the 7 sets in part 3; group 2 values are related to sums of values in the second groups of each of the sets; and group 3 values to the sums of values of the third group. That is:

\[ P_{2ij}= \sum\limits_{k=0}^{6} P_{3,3k+i,j}\;\;\;for\;j=(1,2,...5),\;\; i=(1,2,3) \]This represents 15 sums and 105 values being summed. Of the 15 values in part 2, 8 are exactly these sums (or off by 1 in 1 digit); 5 are exact sums of only some of the 7 pendants:

Example: P_{211}= P_{341}+ P_{3,10,1}+ P_{3,13,1}+ P_{3,16,1}+ P_{3,19,1}thus omitting P_{311}and P_{371}

and 2 are less than the sums but cannot be associated with a specific subset of the 7 pendants. (Note that the main cord is broken and so there could have been another part prior to part 1 that summed its values.