To extend the study scopes of integrable couplings, the notion of double integrable couplings is proposed in the paper. The zero curvature equation appearing in the constructing method built in the paper consists of t...To extend the study scopes of integrable couplings, the notion of double integrable couplings is proposed in the paper. The zero curvature equation appearing in the constructing method built in the paper consists of the elements of a new loop algebra which is obtained by using perturbation method. Therefore, the approach given in the paper has extensive applicable values, that is, it applies to investigate a lot of double integrable couplings of the known integrable hierarchies of evolution equations. As for explicit applications of the method proposed in the paper, the double integrable couplings of the AKNS hierarchy and the KN hierarchy are worked out, respectively.展开更多
Based on the generalization of Lie algebra An- 1, two types of new Lie algebras were worked out and the integrability of the related hierarchies of evolution equations were proved in the sense of Liouville.
Two different integrable couplings of the modified Tu hierarchy are obtained under the zero curvatureequation by using two higher dimension Lie algebras.Furthermore,a complex Hamiltonian structures of the secondintegr...Two different integrable couplings of the modified Tu hierarchy are obtained under the zero curvatureequation by using two higher dimension Lie algebras.Furthermore,a complex Hamiltonian structures of the secondintegrable couplings is presented by taking use of the variational identity.展开更多
The social gender theory is a historical analysis method which is benificial to explore the system of human organization activities around ＂male＂or ＂female＂ activities. Historically, the process of human socializa...The social gender theory is a historical analysis method which is benificial to explore the system of human organization activities around ＂male＂or ＂female＂ activities. Historically, the process of human socialization is also a process of social gender institutionalization. Therefore, the paper tried to analyze the connotation of ethnic women＇s costume from the social gender perspective to help people realize further the women＇s state in sexism society and value in ethnic group constructing and developing. Firstly, the paper sets forth the characteristic of ＂group＂ of ethnic people female costumes. The next, the paper explored the costume how to set up a system of ethic standard in inner group so as to maintain the social order. Subsequently, the paper points out, with the rapid evolution of society, more and more ethnic people men participate cities construction and outer social activities Consequently, most of minority men wear modem clothing instead of their traditional clothing, only women still insist in wearing the traditional clothing. Finally, according to research above, the authors consider that ethnic people female costumes emerge strong gender content which reflects more constraints rather than equality between men and women. Besides, it is certain that women have irreplaceable value in ethinc group construction and development.展开更多
Chinese music history is a rigorous discipline of analyzing, studying and describing Chinese music development and evolution process, which has typical historical factors. Chinese music covers a wide range, which incl...Chinese music history is a rigorous discipline of analyzing, studying and describing Chinese music development and evolution process, which has typical historical factors. Chinese music covers a wide range, which includes China traditional opera, minority drama, local and regional opera, and the song and dance drama and music with the sense of the times.However, in the music history research and teaching in our country currently, because the current art education of the old system and the traditional mechanical reasons, study on the history of music lacks of effective view in the breadth and depth.Because of these reasons, there is a lack of the object of study and research methods, so in the course of study on the China music history, it has some deficiency and embarrassing phenomenon.In this paper, it takes the analysis on deletion and embarrassing situations in our country at present on the history of music, and finds out the corresponding solutions for it.展开更多
The objects in this paper are all projective 3-folds over an algebresically closed field of characteristic 0. After simply generalizing the Rationality theorem, a kind of contractions. of non-minimal 3-folds is given
基金Supported by the National Natural Science Foundation of China under Grant No.10971031
文摘To extend the study scopes of integrable couplings, the notion of double integrable couplings is proposed in the paper. The zero curvature equation appearing in the constructing method built in the paper consists of the elements of a new loop algebra which is obtained by using perturbation method. Therefore, the approach given in the paper has extensive applicable values, that is, it applies to investigate a lot of double integrable couplings of the known integrable hierarchies of evolution equations. As for explicit applications of the method proposed in the paper, the double integrable couplings of the AKNS hierarchy and the KN hierarchy are worked out, respectively.
基金Project supported by the Shanghai Leading Academic Discipline Project (Grant No.J50101)the Science Foundation of Shanghai Municiple Commission of Education (Grant No.06AZ081)
文摘Based on the generalization of Lie algebra An- 1, two types of new Lie algebras were worked out and the integrability of the related hierarchies of evolution equations were proved in the sense of Liouville.
文摘Two different integrable couplings of the modified Tu hierarchy are obtained under the zero curvatureequation by using two higher dimension Lie algebras.Furthermore,a complex Hamiltonian structures of the secondintegrable couplings is presented by taking use of the variational identity.
文摘The social gender theory is a historical analysis method which is benificial to explore the system of human organization activities around ＂male＂or ＂female＂ activities. Historically, the process of human socialization is also a process of social gender institutionalization. Therefore, the paper tried to analyze the connotation of ethnic women＇s costume from the social gender perspective to help people realize further the women＇s state in sexism society and value in ethnic group constructing and developing. Firstly, the paper sets forth the characteristic of ＂group＂ of ethnic people female costumes. The next, the paper explored the costume how to set up a system of ethic standard in inner group so as to maintain the social order. Subsequently, the paper points out, with the rapid evolution of society, more and more ethnic people men participate cities construction and outer social activities Consequently, most of minority men wear modem clothing instead of their traditional clothing, only women still insist in wearing the traditional clothing. Finally, according to research above, the authors consider that ethnic people female costumes emerge strong gender content which reflects more constraints rather than equality between men and women. Besides, it is certain that women have irreplaceable value in ethinc group construction and development.
文摘Chinese music history is a rigorous discipline of analyzing, studying and describing Chinese music development and evolution process, which has typical historical factors. Chinese music covers a wide range, which includes China traditional opera, minority drama, local and regional opera, and the song and dance drama and music with the sense of the times.However, in the music history research and teaching in our country currently, because the current art education of the old system and the traditional mechanical reasons, study on the history of music lacks of effective view in the breadth and depth.Because of these reasons, there is a lack of the object of study and research methods, so in the course of study on the China music history, it has some deficiency and embarrassing phenomenon.In this paper, it takes the analysis on deletion and embarrassing situations in our country at present on the history of music, and finds out the corresponding solutions for it.
文摘The objects in this paper are all projective 3-folds over an algebresically closed field of characteristic 0. After simply generalizing the Rationality theorem, a kind of contractions. of non-minimal 3-folds is given
