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Maximization of the first eigenvalue in problems involving the bi-Laplacian. (English) Zbl 1238.35066

Summary: This paper concerns maximization of the first eigenvalue in problems involving the bi-Laplacian under either Navier boundary conditions or Dirichlet boundary conditions. Physically, in the case of \(N=2\), our equation models the vibration of a nonhomogeneous plate \(\Omega \) which is either hinged or clamped along the boundary. Given several materials (with different densities) of total extension \(|\Omega |\), we investigate the location of these materials throughout \(\Omega \) so as to maximize the first eigenvalue in the vibration of the corresponding plate.

MSC:

35P05 General topics in linear spectral theory for PDEs
35Q74 PDEs in connection with mechanics of deformable solids
74K20 Plates
74H45 Vibrations in dynamical problems in solid mechanics
Full Text: DOI

References:

[1] Struwe, M., Variational Methods (1990), Springer-Verlag: Springer-Verlag Berlin, New York · Zbl 0746.49010
[2] Agmon, S.; Douglis, A.; Nirenberg, L., Estimates near the boundary for solutions of elliptic partial differential equations satisfying general boundary conditions. I, Commun. Pure Appl. Math., 12, 623-727 (1959) · Zbl 0093.10401
[3] C. Anedda, F. Cuccu, G. Porru, Minimization of the first eigenvalue in problems involving the bi-Laplacian, Rev. Mat. Teoria Aplic. (in press); C. Anedda, F. Cuccu, G. Porru, Minimization of the first eigenvalue in problems involving the bi-Laplacian, Rev. Mat. Teoria Aplic. (in press) · Zbl 1338.35311
[4] Cox, S. J.; McLaughlin, J. R., Extremal eigenvalue problems for composite membranes, I, II, Appl. Math. Optim., 22, 153-167 (1990), 169-187 · Zbl 0709.73044
[5] Cuccu, F.; Porru, G., Optimization in eigenvalue problems, Dyn. Contin. Discrete Impuls. Syst. Ser. A Math. Anal., 10, 51-58 (2003) · Zbl 1044.35036
[6] F. Cuccu, B. Emamizadeh, G. Porru, Optimization of the first eigenvalue in problems involving the \(p\)-Laplacian, Proc. Amer. Math. Soc. (in press); F. Cuccu, B. Emamizadeh, G. Porru, Optimization of the first eigenvalue in problems involving the \(p\)-Laplacian, Proc. Amer. Math. Soc. (in press) · Zbl 1163.35025
[7] Cuccu, F.; Emamizadeh, B.; Porru, G., Nonlinear elastic membranes involving the p-Laplacian operator, Electron. J. Differential Equations, 49, 10 (2006) · Zbl 1128.35333
[8] Cuccu, F.; Emamizadeh, B.; Porru, G., Optimization problems for an elastic plate, J. Math. Phys., 47, 8, 082901 (2006), 12 pp · Zbl 1112.74046
[9] Burton, G. R., Variational problems on classes of rearrangements and multiple configurations for steady vortices, Ann. Inst. Henri Poincaré, 6, 4, 295-319 (1989) · Zbl 0677.49005
[10] Burton, G. R.; McLeod, J. B., Maximisation and minimisation on classes of rearrangements, Proc. Roy. Soc. Edinburgh Sect. A, 119, 3-4, 287-300 (1991) · Zbl 0736.49006
[11] Auchmuty, G., Dual principles for eigenvalue problems, (Browder, F., Nonlinear Functional Analysis and its Applications (1986), A.M.S: A.M.S Providence, RI), 55-71 · Zbl 0594.49028
[12] B. Kawohl, Rearrangements and Convexity of Level Sets in PDE, in: Lectures Notes in Mathematics, vol. 1150, Berlin, 1985; B. Kawohl, Rearrangements and Convexity of Level Sets in PDE, in: Lectures Notes in Mathematics, vol. 1150, Berlin, 1985 · Zbl 0593.35002
[13] Grunau, H. C.; Sweers, G., Sign change for the Green function and for the first eigenfunction of equations of clamped-plate type, Arch. Ration. Mech. Anal., 150, 179-190 (1999) · Zbl 0973.74044
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