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Topic: disjunctive constraints in integer linear programming
Replies: 9   Last Post: Apr 14, 2013 2:43 AM

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Posts: 2
Registered: 4/11/13
disjunctive constraints in integer linear programming
Posted: Apr 11, 2013 3:24 PM
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I have an integer linear programming problem as follows:

The constraints are either

x >= 0
y = u
z = x + v


x < 0
y = u - x
z = v

where y, z, u, v range over non-negative integers. There are other unrelated constraints associated with u, v, y, z.

What's the most simple way to encode the disjunctive case? Does any linear encoding where all co-efficients are -1, 0, 1 exist?

Thank you!

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