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[期刊论文] 作者:Niu Pengcheng, 来源:偏微分方程(英文版) 年份:2000
In this paper, spectral properties of certain left invariant differential operators on two-step nilpotent Lie groups are completely described by using the theor...
[期刊论文] 作者:Yuan Zixia,Niu Pengcheng, 来源:偏微分方程:英文版 年份:2008
[期刊论文] 作者:Liu Haifeng Niu Pengcheng, 来源:偏微分方程:英文版 年份:2006
[期刊论文] 作者:WANG Xinjing,NIU Pengcheng, 来源:偏微分方程(英文版) 年份:2019
The aim of the paper is to study properties of solutions to the nonlinear fractional subLaplace equations on the Heisenberg group.Based on the method of moving...
[期刊论文] 作者:Han Junqiang,Niu Pengcheng, 来源:偏微分方程(英文版) 年份:2006
A Pohozaev-Rellich type identity for the p-sub-Laplacian on groups of Heisenberg type, G, is given. A Carleman estimate for the sub-Laplacian on G is establishe...
[期刊论文] 作者:Niu Pengcheng,Wang Jialin, 来源:黑龙江科技学院学报 年份:2010
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:Yuan Zixia,Niu Pengcheng, 来源:黑龙江科技学院学报 年份:2009
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:HOU Lingling,NIU Pengcheng, 来源:偏微分方程(英文版) 年份:2020
In this paper we consider the divergence parabolic equation with bound-ed and measurable coefficients related to Hormander's vector fields and establish a Nash t...
[期刊论文] 作者:WEI Na NIU Pengcheng LIU Haife, 来源:偏微分方程:英文版 年份:2009
[期刊论文] 作者:WEI Na,NIU Pengcheng,LIU Haifeng, 来源:偏微分方程(英文版) 年份:2009
We prove some new Hardy type inequalities on the bounded domain with smooth boundary in the Caot group. Several estimates of the first and second Dirich-let eig...
[期刊论文] 作者:Dou Jingbo,Niu Pengcheng,Han Junqiang, 来源:偏微分方程(英文版) 年份:2007
In this parer,by using the polar coordinates for the generalized Baouendi-Grushin operator (£)α=n∑i=1(σ)2/(σ)x2i+m∑j=1|x|2α(σ)2/(σ)y2j,where x=(x1, x2,...
[期刊论文] 作者:Han Yazhou,Luo Xuebo,Niu Pengcheng, 来源:偏微分方程(英文版) 年份:2005
Let Xj, j = 1,…, k, be first order smooth quasi-homogeneous vector fields on Rn with the property that the dimension of the Lie algebra generated by these vect...
[期刊论文] 作者:Han Yazhou(韩亚洲),Niu Pengcheng(钮鹏程),Luo Xuebo(罗学波), 来源:偏微分方程(英文版) 年份:2002
In this paper we present a Hardy type inequality and a Picone type identity for the real sub-Laplacian on the homogeneous group. The existence of the indefinite...
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