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Article Contents

# Harnack type inequalities for some doubly nonlinear singular parabolic equations

• We prove Harnack type inequalities for a wide class of parabolic doubly nonlinear equations including $u_t=$ ${ div}(|u|^{m-1}|Du|^{p-2}Du)$. We will distinguish between the supercritical range $3 - \frac {p} {N} < p+m < 3$ and the subcritical $2 < p+m \le 3 - \frac {p} {N}$ range. Our results extend similar estimates holding for general equations having the same structure as the parabolic $p$-Laplace or the porous medium equation and recently collected in [6].
Mathematics Subject Classification: Primary: 35B65, 35K67; Secondary: 35K55.

 Citation:

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