Article · Wikipedia archive · Last revised May 30, 2026

Semi-infinite programming

In optimization theory, semi-infinite programming (SIP) is an optimization problem with a finite number of variables and an infinite number of constraints, or an infinite number of variables and a finite number of constraints. In the former case the constraints are typically parameterized.

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In optimization theory, semi-infinite programming (SIP) is an optimization problem with a finite number of variables and an infinite number of constraints, or an infinite number of variables and a finite number of constraints. In the former case the constraints are typically parameterized.1

Mathematical formulation of the problem

The problem can be stated simply as:

min x X f ( x ) {\displaystyle \min _{x\in X}\;\;f(x)}
subject to:  {\displaystyle {\text{subject to: }}}
g ( x , y ) 0 , y Y {\displaystyle g(x,y)\leq 0,\;\;\forall y\in Y}

where

f : R n R {\displaystyle f:R^{n}\to R}
g : R n × R m R {\displaystyle g:R^{n}\times R^{m}\to R}
X R n {\displaystyle X\subseteq R^{n}}
Y R m . {\displaystyle Y\subseteq R^{m}.}

SIP can be seen as a special case of bilevel programs in which the lower-level variables do not participate in the objective function.

Methods for solving the problem

In the meantime, see external links below for a complete tutorial.

Examples

In the meantime, see external links below for a complete tutorial.

See also

See also

References

References

External links