RT info:eu-repo/semantics/article T1 Plasma velocity in hydromagnetic dynamos A1 Núñez Jiménez, Manuel K1 Magnetic energy AB Hydromagnetic dynamos are plasma configurations generating for some time anexponentially increasing magnetic field. By using a number of functional inequalities,we estimate the rate of increase of magnetic energy in terms of the plasmaresistivity and diferent norms on the plasma velocity. Our bounds are proved to beoptimal as far as the powers of the relevant magnitudes are concerned. PB American Institute of Physics SN 0022-2488 YR 2002 FD 2002 LK http://uvadoc.uva.es/handle/10324/39589 UL http://uvadoc.uva.es/handle/10324/39589 LA eng NO Journal of Mathematical Physics 43, 3202 (2002); NO Producción Científica DS UVaDOC RD 07-ago-2024