Blowup for degenerate and singular parabolic equation with nonlocal source.
Global existence and estimates of solutions for a quasilinear parabolic system.
Non-simultaneous blow-up for a semilinear parabolic system with nonlinear memory.
Non-simultaneous blow-up for a reaction-diffusion system with absorption and coupled boundary flux.
Blowup for degenerate and singular parabolic system with nonlocal source.
Blow-up of solutions for the non-Newtonian polytropic filtration equation with a generalized source
This paper deals with the blow-up properties of the non-Newtonian polytropic filtration equation with homogeneous Dirichlet boundary conditions. The blow-up conditions, upper and lower bounds of the blow-up time, and the blow-up rate are established by using the energy method and differential inequality techniques.
On the second largest eigenvalue of a mixed graph
Let G be a mixed graph. We discuss the relation between the second largest eigenvalue λ₂(G) and the second largest degree d₂(G), and present a sufficient condition for λ₂(G) ≥ d₂(G).
Rigidity of Einstein manifolds and generalized quasi-Einstein manifolds
We discuss the rigidity of Einstein manifolds and generalized quasi-Einstein manifolds. We improve a pinching condition used in a theorem on the rigidity of compact Einstein manifolds. Under an additional condition, we confirm a conjecture on the rigidity of compact Einstein manifolds. In addition, we prove that every closed generalized quasi-Einstein manifold is an Einstein manifold provided μ = -1/(n-2), λ ≤ 0 and β ≤ 0.
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