How can we express union of two or more constraints, for example x &#x2265;<!-- ≥ --> 0 &#x

Abram Boyd

Abram Boyd

Answered question

2022-06-15

How can we express union of two or more constraints, for example x 0 y 0, in an inequality system as below:
f 1 ( x , y ) 0 f 2 ( x , y ) 0 f 3 ( x , y ) 0
where f i C 1 . This feasible set is not necessarily a convex set, hence there is not any linear inequality system for this problem. Is there any non-linear one?

Answer & Explanation

jmibanezla

jmibanezla

Beginner2022-06-16Added 17 answers

It is not clear to me what you are asking, you could write max k f f ( x , y ) 0, but that is just a notation, it doesn't change anything.

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