02268nam 2200457 450 00001338820050718115500.03-540-07175-X20030515d1975----km-y0itay0103----baengDEHypoellipticity and eigenvalue asymptoticsCharles RocklandBerlin [etc.]Springer1975171 p.25 cm.Lecture notes in mathematics4642001Lecture notes in mathematicsEquazioni differenziali lineari alla derivate parziali515.353(21. ed.)Equazioni differenziali parziali22E25Topological groups, Lie groups. Nilpotent and solvable Lie groups22E45Topological groups, Lie groups. Representations of Lie and linear algebraic groups over real fields: analytic methods35D05Partial differential equations. Existence of generalized solutions35D10Partial differential equations. Regularity of generalized solutions35HxxPartial differential equations. Close-to-elliptic equations35N15Partial differential equations. Overdetermined systems. $\overline\partial$ -Neumann problem and generalizations; formal complexes35P15Spectral theory and eigenvalue problems for partial differential operators. Estimation of eigenvalues, upper and lower bounds58J40Global analysis, analysis on manifolds. Partial differential equations on manifolds; differential operators. Pseudodifferential and Fourier integral operators on manifoldsRockland,Charles58625ITUniversità della Basilicata - B.I.A.RICAunimarc000013388Hypoellipticity and eigenvalue asymptotics80879UNIBASMONSCISCIENZEEXT0020120030515BAS01184020050601BAS011755batch0120050718BAS01105120050718BAS01111120050718BAS01114120050718BAS011155BAS01BAS01BOOKBASA2Polo Tecnico-ScientificoGENCollezione generaleMAT31668S316682003091951Riservati