Geodesic
Linear interval equations with symmetric solution sets
Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 48 (2008) no. 4, pp. 562-569 Cet article a éte moissonné depuis la source Math-Net.Ru

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Criteria for symmetry and boundedness are found for the combined solution set of a system of linear algebraic equations with interval coefficients. It is shown that the problem of the best inner interval estimation of a symmetric solution set can be exactly solved by linear programming methods. 
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L. T. Ashchepkov. Linear interval equations with symmetric solution sets. Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 48 (2008) no. 4, pp. 562-569. http://geodesic.mathdoc.fr/item/ZVMMF_2008_48_4_a1/

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