$a Partial differential equations Analyse géométrique Application to extremal problems in several variables; Yang-Mills functionals Asymptotic distribution of eigenvalues and eigenfunctions Differentials on Riemann surfaces Equations of mathematical physics and other areas of application Functions of a complex variable Geometric analysis Global analysis, analysis on manifolds PDEs in connection with fluid mechanics Partial differential equations Partial differential equations on manifolds; differential operators Pseudodifferential and Fourier integral operators on manifolds Pseudodifferential operators Pseudodifferential operators and other generalizations of partial differential operators Riemann surfaces Scattering theory Spectral problems; spectral geometry; scattering theory Spectral theory (Mathematics) Spectral theory and eigenvalue problems Spectre (Mathématiques) Variational problems in infinite-dimensional spaces