Geodesic
On the Characterization of a Class of Laminates for 2 × 2 Symmetric Gradients
Journal of convex analysis, Tome 18 (2011) no. 1, pp. 37-58 Cet article a éte moissonné depuis la source Heldermann Verlag

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We report on our attempts to disprove the implication from rank-one convexity to quasiconvexity for 2 × 2 symmetric matrices. As a by-product, we have reached a characterization of some laminates, belonging to a special class which we call 3-edge-laminates.
Classification : 49J10, 26B25
Mots-clés : Vector calculus of variations, quasiconvexity, polyconvexity, rank-one convexity, homogeneous gradient Young measure, laminate 
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     author = {L. Bandeira and A. Ornelas},
     title = {On the {Characterization} of a {Class} of {Laminates} for 2 {\texttimes} 2 {Symmetric} {Gradients}},
     journal = {Journal of convex analysis},
     pages = {37--58},
     year = {2011},
     volume = {18},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JCA_2011_18_1_JCA_2011_18_1_a1/}
}
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L. Bandeira; A. Ornelas. On the Characterization of a Class of Laminates for 2 × 2 Symmetric Gradients. Journal of convex analysis, Tome 18 (2011) no. 1, pp. 37-58. http://geodesic.mathdoc.fr/item/JCA_2011_18_1_JCA_2011_18_1_a1/