Results 1 to 10 of about 171,021 (301)

Blow-up: A Free Lunch? [PDF]

i-Perception, 2012
We consider operations that change the size of images, either shrinks or blow-ups . Image processing offers numerous possibilities, put at everyone's disposal with such computer programs as Adobe Photoshop.
Jan Koenderink, Whitman Richards, Andrea Van Doorn   +2 more
doaj   +8 more sources

Refined Regularity of the Blow-Up Set Linked to Refined Asymptotic Behavior for the Semilinear Heat Equation [PDF]

Advanced Nonlinear Studies, 2017
We consider u⁢(x,t)${u(x,t)}$, a solution of ∂t⁡u=Δ⁢u+|u|p-1⁢u${\partial_{t}u=\Delta u+|u|^{p-1}u}$ which blows up at some time T>0${T>0}$, where u:ℝN×[0,T)→ℝ${u:\mathbb{R}^{N}\times[0,T)\to\mathbb{R}}$, p>1${p>1}$ and (N-2)⁢p0}$.
Ghoul Tej-Eddine, Nguyen Van Tien, Zaag Hatem   +2 more
doaj   +2 more sources

Instantons from blow-up [PDF]

Journal of High Energy Physics, 2019
We generalize Nakajima-Yoshioka blowup equations to arbitrary gauge group with hypermultiplets in arbitrary representations. Using our blowup equations, we compute the instanton partition functions for 4d N $$ \mathcal{N} $$ = 2 and 5d N $$ \mathcal{N} $$
Joonho Kim, Sung-Soo Kim, Ki-Hong Lee, Kimyeong Lee, Jaewon Song   +4 more
doaj   +5 more sources

Blow Up imagens e miragens [PDF]

Tempo Social, 2000
Este artigo analisa o filme Blow Up de Michelangelo Antonioni, buscando compreender como o seu discurso visual questiona a relação entre real e imaginário.
Paulo Menezes
doaj   +2 more sources

Loop blow-up inflation

Journal of High Energy Physics
We present a new model of string inflation driven by a blow-up Kähler modulus of type IIb compactifications with a potential generated by string loops.
Sukṛti Bansal, Luca Brunelli, Michele Cicoli, Arthur Hebecker, Ruben Kuespert   +4 more
doaj   +4 more sources

On the numerical solutions for a parabolic system with blow-up

AIMS Mathematics, 2021
We study the finite difference approximation for axisymmetric solutions of a parabolic system with blow-up. A scheme with adaptive temporal increments is commonly used to compute an approximate blow-up time.
Chien-Hong Cho, Ying-Jung Lu
doaj   +1 more source

Stability of the blow-up time and the blow-up set under perturbations [PDF]

Discrete & Continuous Dynamical Systems - A, 2010
In this paper we prove a general result concerning continuity of the blow-up time and the blow-up set for an evolution problem under perturbations. This result is based on some convergence of the perturbations for times smaller than the blow-up time of the unperturbed problem together with uniform bounds on the blow-up rates of the perturbed ...
Arrieta Algarra, José María, Ferreira de Pablo, Raúl, Pablo, Arturo de, Rossi, Julio D.   +3 more
openaire   +4 more sources

Blow-up with logarithmic nonlinearities [PDF]

Journal of Differential Equations, 2007
We study the asymptotic behaviour of nonnegative solutions of the nonlinear diffusion equation in the half-line with a nonlinear boundary condition, ut = uxx − _(u + 1) logp(u + 1) (x, t) € R+ × (0, T),−ux(0, t) = (u + 1) logq(u + 1)(0, t) t € (0, T),u(x, 0) = u0(x) x € R+, with p, q, _ > 0.
Ferreira, R., de Pablo, A., Rossi, J.D.
openaire   +5 more sources

Blow-up results of the positive solution for a class of degenerate parabolic equations

Open Mathematics, 2021
This paper is devoted to discussing the blow-up problem of the positive solution of the following degenerate parabolic equations: (r(u))t=div(∣∇u∣p∇u)+f(x,t,u,∣∇u∣2),(x,t)∈D×(0,T∗),∂u∂ν+σu=0,(x,t)∈∂D×(0,T∗),u(x,0)=u0(x),x∈D¯.\left\{\begin{array}{ll}{(r ...
Dong Chenyu, Ding Juntang
doaj   +1 more source

Prediction of Blow-Up Potential Due to Concrete Pavement Growth

Engineering Proceedings, 2023
Concrete pavement growth can cause blow-ups and other pressure-related issues, such as concrete buckling and crushing at the transverse cracks or joints. In addition, these issues result in damaged to adjoining structures, such as bridge abutments, decks,
Youngkyu Kim, Huirak Ahn, Seungwoo Lee
doaj   +1 more source