35N05 Overdetermined systems with constant coefficients

35N10 Overdetermined systems with variable coefficients

35N15 $\overline\partial$-Neumann problem and generalizations; formal complexes [See also <a href="#code:32W05">32W05</a>, <a href="#code:32W10">32W10</a>, <a href="#code:58J10">58J10</a>]

35N20 Overdetermined initial value problems

35N25 Overdetermined boundary value problems

35N30 Overdetermined initial-boundary value problems

35N99 None of the above, but in this section

35Pxx Spectral theory and eigenvalue problems [See also <a href="#code:47Axx">47Axx</a>, <a href="#code:47Bxx">47Bxx</a>, <a href="#code:47F05">47F05</a>]

35P05 General topics in linear spectral theory

35P10 Completeness of eigenfunctions, eigenfunction expansions

35P15 Estimation of eigenvalues, upper and lower bounds

35P20 Asymptotic distribution of eigenvalues and eigenfunctions

35P25 Scattering theory [See also <a href="#code:47A40">47A40</a>]

35P30 Nonlinear eigenvalue problems, nonlinear spectral theory

35P99 None of the above, but in this section

35Qxx Equations of mathematical physics and other areas of application [See also <a href="#code:35J05">35J05</a>, <a href="#code:35J10">35J10</a>, <a href="#code:35K05">35K05</a>, <a href="#code:35L05">35L05</a>]

35Q15 Riemann-Hilbert problems [See also <a href="#code:30E25">30E25</a>, <a href="#code:31A25">31A25</a>, <a href="#code:31B20">31B20</a>]

35Q30 Navier-Stokes equations [See also <a href="#code:76D05">76D05</a>, <a href="#code:76D07">76D07</a>, <a href="#code:76N10">76N10</a>]

35Q35 PDEs in connection with fluid mechanics

35Q40 PDEs in connection with quantum mechanics

35Q41  Time-dependent Schrödinger equations, Dirac equations

35Q51 Soliton-like equations [See also <a href="#code:37K40">37K40</a>]

35Q53 KdV-like equations (Korteweg-de Vries) [See also <a href="#code:37K10">37K10</a>]

35Q55 NLS-like  equations (nonlinear Schrödinger) [See also <a href="#code:37K10">37K10</a>]

35Q60 PDEs in connection with optics and electromagnetic theory

35Q62 PDEs in connection with statistics