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Isofrequency topologies are studied for a gyroelectromagnetic medium obtained by stacking optically thin magnetized ferrite and semiconductor layers into a unified structure In such a structure, both bi hyperbolic and tetra hyperbolic isofrequency contours appear as a simultaneous effect of both periodic arrangement of constitutive layers and external magnetic field influence It is proposed to consider the obtained bi hyperbolic and tetra hyperbolic isofrequency contours as new topology classes of the wave dispersion