Geodesic
On a characteristic properties of modified Lagrangian functional in a problem of elasticity with a given friction
Dalʹnevostočnyj matematičeskij žurnal, Tome 9 (2009) no. 1, pp. 38-47 Cet article a éte moissonné depuis la source Math-Net.Ru

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The modified Lagrangian functional was investigated for Semicoercive Quasi-Variational Signorini Inequality. It was shown that the sets of saddle points of classical and modified Lagrangian functionals are the same. 
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E. M. Vikhtenko; R. V. Namm. On a characteristic properties of modified Lagrangian functional in a problem of elasticity with a given friction. Dalʹnevostočnyj matematičeskij žurnal, Tome 9 (2009) no. 1, pp. 38-47. http://geodesic.mathdoc.fr/item/DVMG_2009_9_1_a4/

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