@Article{JPDE-3-49, author = {Yin Jingxue}, title = {On a Class of Quasilinear Parabolic Equations of Second Order with Double-degeneracy}, journal = {Journal of Partial Differential Equations}, year = {1990}, volume = {3}, number = {4}, pages = {49--64}, abstract = { In this paper we study the first boundary value problem for nonlinear diffusion equation \frac{∂u}{∂t} + \frac{∂}{∂x}f(u) = \frac{∂}{∂x}A(\frac{∂}{∂x}B(u)) whereA(s) = ∫¹_0a(σ)dσ, B(s) = ∫¹_0b(σ)dσ with a(s) ≥ 0, b(s) ≥ 0. We prove the existence of BV solutions under the much general structural conditions lim_{s → + ∞} A(s) = +∞, lim_{s → - ∞} A(s) = -∞ Moreover, we show the uniqueness without any structural conditions.}, issn = {2079-732X}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/jpde/5813.html} }