＂Mother＂ is sometimes associated with ＂other＂. The same is true in some of Carol Ann Duffy＇s poems, in which some mothers are described as institutionalized in the patriarchal society and considered as ＂the othe...＂Mother＂ is sometimes associated with ＂other＂. The same is true in some of Carol Ann Duffy＇s poems, in which some mothers are described as institutionalized in the patriarchal society and considered as ＂the other＂, losing self-identity. Duffy also describes women fighting against the patriarchal control generation after generation until they are finally free. Some mothers exhibit their own potentials as mothers, either able to or unable to fulfill the duties of both material and spiritual caretakers of the family.展开更多
In this paper, the investigation is focused on a （3＋1）-dimensional variable-coefficient Kadomtsev- Petviashvili （vcKP） equation, which can describe the realistic nonlinear phenomena in the fluid dynamics and plas...In this paper, the investigation is focused on a （3＋1）-dimensional variable-coefficient Kadomtsev- Petviashvili （vcKP） equation, which can describe the realistic nonlinear phenomena in the fluid dynamics and plasma in three spatial dimensions. In order to study the integrability property of such an equation, the Painlevé analysis is performed on it. And then, based on the truncated Painlevé expansion, the bilinear form of the （3＋1）-dimensionaJ vcKP equation is obtained under certain coefficients constraint, and its solution in the Wronskian determinant form is constructed and verified by virtue of the Wronskian technique. Besides the Wronskian determinant solution, it is shown that the （3＋1）-dimensional vcKP equation also possesses a solution in the form of the Grammian determinant.展开更多
文摘＂Mother＂ is sometimes associated with ＂other＂. The same is true in some of Carol Ann Duffy＇s poems, in which some mothers are described as institutionalized in the patriarchal society and considered as ＂the other＂, losing self-identity. Duffy also describes women fighting against the patriarchal control generation after generation until they are finally free. Some mothers exhibit their own potentials as mothers, either able to or unable to fulfill the duties of both material and spiritual caretakers of the family.
基金Supported by the Specialized Research Fund for the Doctoral Program of Higher Education under Grant Nos. 20060006024 and 20080013006Chinese Ministry of Education, by the National Natural Science Foundation of China under Grant No. 60772023+2 种基金by the Open Fund of the State Key Laboratory of Software Development Environment under Grant No. SKLSDE-07-001Beijing University of Aeronautics and Astronauticsby the National Basic Research Program of China (973 Program) under Grant No. 2005CB321901
文摘In this paper, the investigation is focused on a （3＋1）-dimensional variable-coefficient Kadomtsev- Petviashvili （vcKP） equation, which can describe the realistic nonlinear phenomena in the fluid dynamics and plasma in three spatial dimensions. In order to study the integrability property of such an equation, the Painlevé analysis is performed on it. And then, based on the truncated Painlevé expansion, the bilinear form of the （3＋1）-dimensionaJ vcKP equation is obtained under certain coefficients constraint, and its solution in the Wronskian determinant form is constructed and verified by virtue of the Wronskian technique. Besides the Wronskian determinant solution, it is shown that the （3＋1）-dimensional vcKP equation also possesses a solution in the form of the Grammian determinant.
