Asymptotic issues for some partial differential equations

Variational inequalities (49J40) Asymptotic behavior of solutions to PDEs (35B40) Singular perturbations in context of PDEs (35B25) Energy minimization in equilibrium problems in solid mechanics (74G65) Spectral theory and eigenvalue problems for partial differential equations (35Pxx) Research exposition (monographs, survey articles) pertaining to partial differential equations (35-02) Parabolic equations and parabolic systems (35Kxx) Elliptic equations and elliptic systems (35Jxx)