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“…Its study seems to have been started in [21], where the case a(x) = 1, p = (N + 2)/ (N − 2) was analyzed, and later continued in [19], [1], [2], [25], [24] (see also [10] for the p-Laplacian analogue), where a(x) ≥ a 0 > 0 in Ω and a linear term −λu is added in the equation in some cases. In all of them, uniqueness was obtained by means of precise boundary estimates, which took the form u ∼ Ad −α as d → 0, where A is given in terms of p and α = 2/(p − 1).…”
Abstract. In this paper, we prove that for p > 1 the problem ∆u = a(x)u p in a bounded C 2 domain Ω of R N has a unique positive solution with u = ∞ on ∂Ω. The nonnegative weight a(x) is continuous in Ω, but is only assumed to verify a "bounded oscillations" condition of local nature near ∂Ω, in contrast with previous works, where a definite behavior of a near ∂Ω was imposed.
“…Its study seems to have been started in [21], where the case a(x) = 1, p = (N + 2)/ (N − 2) was analyzed, and later continued in [19], [1], [2], [25], [24] (see also [10] for the p-Laplacian analogue), where a(x) ≥ a 0 > 0 in Ω and a linear term −λu is added in the equation in some cases. In all of them, uniqueness was obtained by means of precise boundary estimates, which took the form u ∼ Ad −α as d → 0, where A is given in terms of p and α = 2/(p − 1).…”
Abstract. In this paper, we prove that for p > 1 the problem ∆u = a(x)u p in a bounded C 2 domain Ω of R N has a unique positive solution with u = ∞ on ∂Ω. The nonnegative weight a(x) is continuous in Ω, but is only assumed to verify a "bounded oscillations" condition of local nature near ∂Ω, in contrast with previous works, where a definite behavior of a near ∂Ω was imposed.
“…We conjecture that the necessary and sufficient conditions, obtained by Dhersin-Le Gall when q = 2 [4] and Labutin [6] in the general case q > 1, and expressed by mean of a Wiener type criterion involving the C R N 2,q ′ -Bessel capacity, are still valid. As in [7], it is clear that if ∂Ω satisfies the exterior segment property and 1 < q < (N − 1)/(N − 3), then u 0 is a large solution.…”
Section: The Local Continuous Graph Propertymentioning
confidence: 91%
“…Marcus and Véron prove in [7] that, there exists at most one large solution, provided ∂Ω is locally the graph of a continuous function. The aim of this article is to extend these questions to the parabolic equation u(x, t) = ∞ ∀(y, s) ∈ Γ × (0, ∞).…”
We study the existence and uniqueness of the positive solutions of the problem (P):We construct a maximal solution, prove that this maximal solution is a large solution whenever q < N/(N − 2) and it is unique if ∂Ω = ∂Ω c . If ∂Ω has the local graph property, we prove that there exists at most one solution to problem (P).1991 Mathematics Subject Classification. 35K60, 34.
“…After the works by Keller and Osserman, a broad variety of very interesting results concerning existence, uniqueness and asymptotic behavior near the boundary for large solutions of second-order reaction-diffusion equations have been obtained in the PDE framework using different techniques, see [3,12,14,25,26,27,29] for a nonexhaustive list of references. It is also worth to mention the deep connection of problems like (1.3) with stochastic superprocesses and the so-called Brownian snake, see [15,24] and references therein.…”
Abstract. We study existence of large solutions, that is, solutions that verify u(x) → +∞ as x → ∂Ω, for equations likewhere Ω is a bounded smooth domain in R N , p > 1 and I is a nonlocal operator of the formwhere α ∈ (0, 2) and :Ω → R is a function whose main particularity is that 0 < (x) ≤ dist(x, ∂Ω). We also obtain uniqueness of the solution in a class of large solutions whose blow-up rate depends on p, α and the rate at which shrinks near the boundary.
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