We consider ring Q-homeomorphisms with respect to the p-modulus in the space ℝn for p>n. A lower bound for the volume of the image of a ball under these mappings is obtained. We solve the extreme problems of minimization of functionals of the volume of the image of a ball and the area of the image of a sphere.
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Translated from Ukrains’kyi Matematychnyi Zhurnal, Vol. 71, No. 6, pp. 774–785, June, 2019.
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Klishchuk, B.A., Salimov, R.R. Lower Bounds for The Volume of the Image of a Ball. Ukr Math J 71, 883–895 (2019). https://doi.org/10.1007/s11253-019-01686-9
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DOI: https://doi.org/10.1007/s11253-019-01686-9