Results 41 to 50 of about 42,010 (103)
Some Zaremba-Hopf-Oleinik Boundary Comparison Principles at Characteristic Points
Bruno Pini Mathematical Analysis Seminar, 2015 We investigate the so-called Hopf lemma for certain degenerate-elliptic equations at characteristic boundary points of bounded open sets. For such equations, the validity of the Hopf lemma is related to the fact that the boundary of the open set reflects
Giulio Tralli
doaj +1 more source
Boundary Value Problems, 2021 In this paper, we study the influence of a protection zone for the prey on a diffusive predator–prey model with fear factor and Allee effect. The prior estimate, global existence, nonexistence of nonconstant positive solutions and bifurcation from ...
Huan Wang, Hui Xing
doaj +1 more source
Alexandrov, Serrin, Weinberger, Reilly: Simmetry and Stability by Integral Identities
Bruno Pini Mathematical Analysis Seminar, 2017 The distinguished names in the title have to do with different proofs of the celebrated Soap Bubble Theorem and of radial symmetry in certain overdetermined boundary value problems.
Rolando Magnanini
doaj +1 more source
Boundary Value Problems, 2021 A nonlinear viscoelastic Kirchhoff-type equation with Balakrishnan–Taylor damping and distributed delay is studied. By the energy method we establish the general decay rate under suitable hypothesis.
Abdelbaki Choucha, Salah Boulaaras
doaj +1 more source
Cancer Cell International, 2021 Background Metastasis and disease refractoriness remain as major challenges for non-small cell lung cancer (NSCLC) treatment and understanding the underlying molecular mechanisms is of scientific and clinical value.
Wenshu Chen +7 more
semanticscholar +1 more source
Existence and Nonexistence Results for a Class of Quasilinear Elliptic Systems
Boundary Value Problems, 2007 Using variational methods, we prove the existence and nonexistence of positive solutions for a class of (p,q)-Laplacian systems with a parameter.
Kanishka Perera, Said El Manouni
doaj +1 more source
Boundary Value Problems, 2017 Consider the anisotropic parabolic equation with the variable exponent u t = ∑ i = 1 N ( a i ( x ) | u x i | p i ( x ) − 2 u x i ) x i , $$ {u_{t}}=\sum_{i=1}^{N} \bigl(a_{i}(x)|u_{x_{i}}|^{p_{i}(x)-2}u_{x_{i}} \bigr)_{x _{i}}, $$ with a i ( x ) $a_{i}(x)
Huashui Zhan
doaj +1 more source
Boundary Value Problems, 2020 In this paper, we consider the three-dimensional compressible Navier–Stokes equations with density-dependent viscosity and vorticity-slip boundary condition in a bounded smooth domain.
Dandan Ren, Yunting Ding, Xinfeng Liang
doaj +1 more source
Very-high-energy particle acceleration powered by the jets of the microquasar SS 433 [PDF]
Nature, 2018 SS 433 is a binary system containing a supergiant star that is overflowing its Roche lobe with matter accreting onto a compact object (either a black hole or neutron star)1–3.
A. Abeysekara +108 more
semanticscholar +1 more source
Boundary Value Problems, 2020 The Editors-in-Chief have retracted this article [1] because it significantly overlaps with a previously published article by Pang et al. [2]. The article also shows evidence of authorship manipulation.
Zhiqiang Li, Mohamed Vetro
doaj +1 more source