Anisotropic estimates for sub-elliptic operators

来源 :中国科学：数学英文版 | 被引量 : 0次 | 上传用户：qqqqq770627

【摘要】

：

In the 1970’s,Folland and Stein studied a family of subelliptic scalar operators L_λwhich arise naturally in the(?)_b-complex.They introduced weighted Sobolev

【作者】

：

John BLAND Tom DUCHAMP

【机构】

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DepartmentofMathematicsUniversityofToronto,DepartmentofMathematics,Box354350,UniversityofWashington,

【出处】

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中国科学：数学英文版

【发表日期】

：

2008年4期

【关键词】

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sub-elliptic operators ANISOTROPIC ESTIMATES ANISOTROPIC SOBOLEV spaces Rumin co

【基金项目】

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This work was supported by NSERC(Grant No.RGPIN/9319-2005)

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In the 1970’s,Folland and Stein studied a family of subelliptic scalar operators L_λwhich arise naturally in the(?)_b-complex.They introduced weighted Sobolev spaces as the natural spaces for this complex,and then obtained sharp estimates for(?)b in these

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