In this Note we study a parameter identification problem associated with a two-dimensional mechanical problem. In a first part, the experimental technique of determining the displacement field is presented. The variational method proposed herein is based on the minimization of a separately convex functional which leads to the reconstruction of the elastic tensor and the stress field. These two ...

A new genus and two new species belonging to subfamily Cecidophyinae, namely Kyllocarus reticulatusgen.n., sp. n. infesting Lithocarpus brevicaudatus (Skan) Hay. (Fagaceae) and Gammaphytoptus schimaesp. n.infesting Schima superba Gardn. et Champ. (Theaceae) are described and illustrated. Both new species are vagrants on their respective host plants. Cecidophyes digephyrusKeifer, 1966 is newly r...

In this Note we present some results concerning the concentration of sequences of first eigenfunctions on the limit sets of a Morse–Smale dynamical system on a compact Riemannian manifold. More precisely a renormalized sequence of eigenfunctions converges to a measure μ concentrated on the hyperbolic sets of the field. The coefficients which appear in the limit measure can be characterized usin...