@misc{10481/72758, year = {2021}, month = {12}, url = {http://hdl.handle.net/10481/72758}, abstract = {This paper aims to study time periodic solutions for 3D inviscid quasi–geostrophic model. We show the existence of non trivial rotating patches by suitable perturbation of stationary solutions given by generic revolution shapes around the vertical axis. The construction of those special solutions are done through bifurcation theory. In general, the spectral problem is very delicate and strongly depends on the shape of the initial stationary solutions. More specifically, the spectral study can be related to an eigenvalue problem of a self–adjoint compact operator. We are able to implement the bifurcation only from the largest eigenvalues of the operator, which are simple. Additional difficulties generated by the singularities of the poles are solved through the use of suitable function spaces with Dirichlet boundary condition type and refined potential theory with anisotropic kernels.}, organization = {Spanish Government RTI2018098850-B-I00}, organization = {Junta de Andalucia European Commission FQM 954}, organization = {Spanish Government FPU15/04094}, organization = {European Research Council (ERC) European Commission ERC-StG-852741}, organization = {French National Research Agency (ANR) ANR-18-CE40-0020-01}, organization = {Spanish Government MTM2016-75390}, organization = {Generalitat de Catalunya General Electric 2017-SGR-395}, publisher = {Springer}, keywords = {3D quasi-geostrophic equations}, keywords = {Periodic solutions}, keywords = {Bifurcation theory}, keywords = {Eigenvalue problems}, title = {Time Periodic Solutions for 3D Quasi-Geostrophic Model}, author = {García López, Claudia}, }