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Related papers: Blow-ups of canonical singularities

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In this work we study the blow-up of solutions of a weakly coupled system of damped semilinear wave equations in the scattering case with power nonlinearities. We apply an iteration method to study both the subcritical case and the critical…

Analysis of PDEs · Mathematics 2019-08-08 Alessandro Palmieri , Hiroyuki Takamura

We prove that any three dimensional terminal singularity $P \in X$ can be resolved by a sequence of divisorial contractions with minimal discrepancies which are weighted blowups over points.

Algebraic Geometry · Mathematics 2013-10-25 Jungkai Alfred Chen

We survey rigorous, formal, and numerical results on the formation of point-like singularities (or blow-up) for a wide range of evolution equations. We use a similarity transformation of the original equation with respect to the blow-up…

Mathematical Physics · Physics 2008-12-09 Jens Eggers , Marco A. Fontelos

When considering a real log canonical threshold (RLCT) that gives a Bayesian generalization error, in general, papers replace a mean error function with a relatively simple polynomial whose RLCT corresponds to that of the mean error…

Statistics Theory · Mathematics 2023-03-22 Joe Hirose

We study a class of non-linear parabolic systems relevant in turbulence theory. Those systems can be viewed as simplified versions of the Prandtl one-equation and Kolmogorov two-equation models of turbulence. We restrict our attention to…

Analysis of PDEs · Mathematics 2022-08-10 Francesco Fanelli , Rafael Granero-Belinchón

We investigate novel scenarios of self-similar finite-time blowups of the generalized Constantin-Lax-Majda model with a parameter $a$, which are induced by a new setting where the smooth initial data satisfy certain derivative degeneracy…

Analysis of PDEs · Mathematics 2026-03-27 De Huang , Jiajun Tong , Xiuyuan Wang

We study F-blowups of non-F-regular normal surface singularities. Especially the cases of rational double points and simple elliptic singularities are treated in detail.

Algebraic Geometry · Mathematics 2024-02-27 Nobuo Hara , Tadakazu Sawada , Takehiko Yasuda

We study positive blowing-up solutions of systems of the form: $$u_t=\delta_1 \Delta u+e^{pv},\quad v_t= \delta_2\Delta v+e^{qu},$$ with $\delta_1,\delta_2>0$ and $p, q>0$. We prove single-point blow-up for large classes of radially…

Analysis of PDEs · Mathematics 2015-10-12 Philippe Souplet , Slim Tayachi

In this paper we report on numerical studies of formation of singularities for the semilinear wave equations with a focusing power nonlinearity $u_{tt} - \Delta u = u^{p}$ in three space dimensions. We show that for generic large initial…

Mathematical Physics · Physics 2011-01-07 Piotr Bizoń , Tadeusz Chmaj , Zbislaw Tabor

The main purpose here is the study of dispersive blow-up for solutions of the Zakharov-Kuznetsov equation. Dispersive blow-up refers to point singularities due to the focusing of short or long waves. We will construct initial data such that…

Analysis of PDEs · Mathematics 2019-11-26 Felipe Linares , Ademir Pastor , Jorge Drumond Silva

We construct a new class of asymptotically self-similar finite-time blowups that have two collapsing spatial scales for the 1D Constantin-Lax-Majda model. The larger spatial scale measures the decreasing distance between the bulk of the…

Analysis of PDEs · Mathematics 2025-07-14 De Huang , Xiang Qin , Xiuyuan Wang

We consider generic 2 x 2 singular Liouville systems on a smooth bounded domain in the plane having some symmetry with respect to the origin. We construct a family of solutions to which blow-up at the origin and whose local mass at the…

Analysis of PDEs · Mathematics 2016-10-04 Luca Battaglia , Angela Pistoia

In this paper we consider the blow-up for solutions to a weakly coupled system of semilinear damped wave equations of derivative type in the scattering case. After introducing suitable functionals proposed by Lai-Takamura for the…

Analysis of PDEs · Mathematics 2019-12-16 Alessandro Palmieri , Hiroyuki Takamura

We study finite-energy blow-ups for prescribed Morse scalar curvatures in both the subcritical and the critical regime. After general considerations on Palais-Smale sequences we determine precise blow up rates for subcritical solutions: in…

Analysis of PDEs · Mathematics 2020-01-27 Andrea Malchiodi , Martin Mayer

We consider a parabolic-type PDE with a diffusion given by a fractional Laplacian operator and with a quadratic nonlinearity of the 'gradient' of the solution, convoluted with a singular term b. Our first result is the well-posedness for…

Analysis of PDEs · Mathematics 2022-09-07 Diego Chamorro , Elena Issoglio

This article shall serve as a quick reference for somebody who needs precise information on concepts and results related to resolution of singularities. As such, it is more a technical manual than a bedtime story. Topics which are covered:…

Algebraic Geometry · Mathematics 2014-04-04 Herwig Hauser

For a singular Liouville equation, it is plausible that a non-simple blowup phenomenon occurs around a quantized singular pole. The presence of complex blowup profiles of bubbling solutions presents substantial challenges in applications.…

Analysis of PDEs · Mathematics 2024-09-24 Teresa D'Aprile , Juncheng Wei , Lei Zhang

In this paper we develop a blow up theory for the parabolic-elliptic Keller-Segel system, which can be viewed as a parabolic counterpart to the Liouville equation. This theory is applied to the study of first time singularities, ancient…

Analysis of PDEs · Mathematics 2025-03-31 Hua Chen , Jian-Meng Li , Kelei Wang

Varieties with log terminal and log canonical singularities are considered in the Minimal Model Program, see \cite{...} for introduction. In \cite{shokurov:hyp} it was conjectured that many of the interesting sets, associated with these…

alg-geom · Mathematics 2015-06-30 Valery Alexeev

In this paper, we would like to study the weakly coupled system of semilinear structurally damped wave equations with moduli of continuity in nonlinear terms whose powers belong to the critical curve in the $p-q$ plane. Our main purpose is…

Analysis of PDEs · Mathematics 2026-04-09 Trung Loc Tang , Tuan Anh Dao , The Anh Cung