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您的检索式：作者名="D.Radulescu"
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| 1 | Global Existence and Finite Time Blow-up for the m-Laplacian Parabolic Problem显示文摘In this paper,we consider an initial boundary value problem of m-Laplacian parabolic equation arising in various physical models.We tackle this problem at three different initial energy levels.For the sub-critical initial energy,we obtain the blow-up result and estimate the lower and upper bounds of the blow-up time.For the critical initial energy,we show the global existence,asymptotic behavior,finite time blow-up and the lower bound of the blow-up time.For the sup-critical initial energy,we prove the finite time blow-up and estimate the lower and upper bounds of the blow-up time. | Yue PANG Vicentiu D.RADULESCU Run Zhang XU | 2023 | Acta Mathematica Sinica,English Series2023，39，8： | 0 |
| 2 | 建筑物业主的实时地震监测需求和解决方案显示文摘为了近实时地测量建筑物的地震性能,最近在一栋24层的楼上布设了先进的地震反应监测系统,这推动了近实时加速度记录和位移及层间位移角计算方面的工作。其中,层间位移角关系到具体结构的破坏情况。目前,这个系统满足了业主关于震后快速输入定量数据进行评估和使用决策方面的需求。现在该系统运行良好,并在以前缺乏强震的情况下,能够记录实时低振幅数据为常规分析和评估所用。此前针对这些数据的研究表明,结构上配置的自带特殊软件的监测系统对于震后建筑物和其他结构的快速评估是一个有用手段。该系统能够用于结构健康监测、评估基于性能的设计和分析程序、长期评估建筑物的结构特性,并可作为可能手段用于长期损伤探测。 | M.Celebi A.Sanli M.Sinclair S.Gallant D.Radulescu 王飞(译) 胡平(校) 俞言祥(校) | 2005 | 世界地震译丛2005，36，5： | 0 |
| 3 | EXISTENCE RESULTS FOR SINGULAR FRACTIONAL p-KIRCHHOFF PROBLEMS显示文摘This paper is concerned with the existence and multiplicity of solutions for singular Kirchhoff-type problems involving the fractional p-Laplacian operator.More precisely,we study the following nonlocal problem:{M (∫∫_(R2N)|x|^(α1p)|y|^(α2p)|u(x) − u(y)|^(p)/|x − y|^(N+ps) dxdy)L_(p)^(s)u = |x| ^(β)f(u) in Ω,u = 0 in R^(N) \ Ω,where L_(p)^(s) is the generalized fractional p-Laplacian operator,N≥1,s∈(0,1),α_(1),α_(2),β∈R,Ω■R^(N) is a bounded domain with Lipschitz boundary,and M:R0^(+)→R0^(+),f:Ω→R are continuous functions.Firstly,we introduce a variational framework for the above problem.Then,the existence of least energy solutions is obtained by using variational methods,provided that the nonlinear term f has(θ_(p-1))-sublinear growth at infinity.Moreover,the existence of infinitely many solutions is obtained by using Krasnoselskii’s genus theory.Finally,we obtain the existence and multiplicity of solutions if f has(θ_(p-1))-superlinear growth at infinity.The main features of our paper are that the Kirchhoff function may vanish at zero and the nonlinearity may be singular. | 向明启 Vicent iu D.RADULESCU 张彬林 | 2022 | Acta Mathematica Scientia2022，42，3： | 0 |
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