Abstract
In this paper we analyze the existence and non-existence of cylindrical solutions for a nonlinear elliptic equation in ℝ3, which has been proposed as a model for the dynamics of galaxies. We prove a general integral inequality of Sobolev-Hardy type that allows us to use variational methods when the power p belongs to the interval [4, 6]. We find solutions in the range 4 < p≤ 6. The value p= 4 seems to have characteristics similar to those of the critical Sobolev exponent p= 6.
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Accepted January 30, 2002¶Published online June 28, 2002
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Badiale, M., Tarantello, G. A Sobolev-Hardy Inequality with¶Applications to a Nonlinear Elliptic Equation¶arising in Astrophysics. Arch. Rational Mech. Anal. 163, 259–293 (2002). https://doi.org/10.1007/s002050200201
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DOI: https://doi.org/10.1007/s002050200201