代国伟

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:西北师范大学

学位:博士

所在单位:数学科学学院

学科:应用数学. 基础数学

办公地点:B1409

联系方式:大连理工大学创新园大厦

电子邮箱:daiguowei@dlut.edu.cn

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Global bifurcation of solutions of the mean curvature spacelike equation in certain Friedmann-Lemaitre-Robertson-Walker spacetimes

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论文类型:期刊论文

发表时间:2018-06-15

发表刊物:JOURNAL OF DIFFERENTIAL EQUATIONS

收录刊物:SCIE、Scopus

卷号:264

期号:12

页面范围:7242-7269

ISSN号:0022-0396

关键字:Bifurcation; Mean curvature spacelike equation; Positive solution; Friedmann-Lemaitre-Robertson-Walker spacetime

摘要:We study the existence of spacelike graphs for the prescribed mean curvature equation in the Friedmann-Lemaitre-Robertson-Walker (FLRW) spacetime. By using a conformal change of variable, this problem is translated into an equivalent problem in the Lorentz-Minkowski spacetime. Then, by using Rabinowitz's global bifurcation method, we obtain the existence and multiplicity of positive solutions for this equation with 0-Dirichlet boundary condition on a ball. Moreover, the global structure of the positive solution set is studied. (C) 2018 Elsevier Inc. All rights reserved.