Errata for Warehouse & Distribution Science

Each new version fixes all known errors.

Version 0.90

• page 49, Figure 6.2: The blue path is the shorter and the blue location is therefore the more convenient. (Thanks to N. Aguilera, Universidad ICESI, for catching this!)

Version 0.89

• page 161: There are some typos in intermediate steps of the proof of convergence of a 2-worker bucket brigade.
• pages 60, 61: Theorem 6.1 is correct but the derivation is garbled. Only the floor positions should be counted as waste, not the above-ground positions. (Thanks to Bryan Norman, University of Pittsburgh for pointing this out.)

Version 0.87

• page 180, end of the second paragraph, “Therefore the total travel cannot exceed optimal by more than one revolution.”: This should be 1.5 revolutions (one-half a revolution to match the endponts of the shortest spanning intervals of the orders, and up to a full revolution to construct the shortest tree spanning the resulting components.

Version 0.85

• page 94, last paragraph, beginning “Because the flows have been labeled...”: The middle term of inequalities fk+1 should be omitted.
• page 98, problem formulation: The volume constraints should include the choice variables xi. The choice variables should also appear in both the objective function and the volume constraints of Expression 8.4.
• page 100, Expression 8.5: The choice variables xi should appear in both the objective function and in the volume constraints.
• page 218: in the two tables, warehouse E should be renamed F and vice versa. Similarly warehouse E' should be renamed F'.

Version 0.83

• Section 6.3.2 is confusing because it contains material that should have been deleted. In particular, Observation 6.1 and the two paragraphs preceding should be ignored, as well as Question 6.11.