Important Information On Biliniar Problem

By Matthew Fox


A number of individuals are familiar with linear systems or linear problems commonly used in engineering and generally in the field of sciences. These are commonly presented as vectors. Such problems or systems can be extended to other forms in which variables are partitioned to two disjointed subsets, in which case the left-hand-side is linear on each separate set. This gives rise to optimization problems having bilinear objectives together with one or more constraints called the biliniar problem.

Generally, the bilinear functions are known to have subclasses of quadratic function as well as quadratic programming. This programming usually have several applications such as when dealing with the constrained bi-matrix games, dealing with Markovian assignments, and complementarity problems. At the same time, majority of 0-1 integer programs can be described similarly.

There are various similarities that can be noted between linear systems and bi-linear systems. For instance, both systems have some homogeneity where the right side constants identically become zero. In addition, one can always add multiples to the equations without altering their solutions. On the contrary, these problems can be further classified into two forms, that is the complete and the incomplete forms. The complete forms normally have unique solutions apart from the number of variables being equal to the number of equations.

On the contrary, incomplete forms usually have an indefinite solution that lies in some specified range, and contain more variables compared to the number of equations. In formulating these problems, various forms can be developed. Nonetheless, a more common and practical problem includes the bilinear objective functions that are bound by some constraints that are linear. All expressions taking this form usually have a theoretical result.

Such programming problems can also be presented using concave minimization problems. This is since they are important when developing concave minimizations. This can be explained by two key reasons. First, bilinear programming is applicable in many areas in the reality. Secondly, some of the methods used in solving bilinear programs can be compared to the techniques used in getting solutions to general minimizations involving concave problems.

There are various scenarios in which these programming problems remain applicable. These include the representation of situations such as the ones facing bimatrix game players. Other areas of previous successful use are such as multi-commodity flow networks, multilevel assignment problems, decision-making theory, scheduling orthogonal production as well as locating of a freshly acquired facility.

In addition, optimization problems usually involving bilinear programs are also necessary when conducting petroleum blending activities as well as water networks operations across the globe. Non-convex-bilinear constraints are mostly needed when modeling the proportions to be mixed from different streams within the petroleum blending and water network systems.

Also, pooling problems can utilize these forms of equations. Again, such problems in programming have their application in having the solution to various multi-agent coordination as well as planning problems. However, they usually focus on various aspects of Markov process used in decision making.




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