Let IHn be the (2n+1)-dimensional Heisenberg group. In this paper, we shall give among other things, the properties of some homogeneous norms relative to dilations on the IHn and prove the equivalence of these norms.
The （Noerlund） logarithmic means of the Fourier series is：tnf=1/ln ^n-1∑k=1 Skf/n-k, where ln=^n-1∑k=1 1/k In general, the Fej6r （C, 1） means have better properties than the logarithmic ones. We compare them an...The （Noerlund） logarithmic means of the Fourier series is：tnf=1/ln ^n-1∑k=1 Skf/n-k, where ln=^n-1∑k=1 1/k In general, the Fej6r （C, 1） means have better properties than the logarithmic ones. We compare them and show that in the case of some unbounded Vilenkin systems the situation changes.展开更多
Firstly, in the general normed linear space, the concepts of generalized isosceles orthogonal group, generalized Birkhoff orthogonal group, generalized Roberts orthogonal group, strong Birkhoff orthogonal group and ge...Firstly, in the general normed linear space, the concepts of generalized isosceles orthogonal group, generalized Birkhoff orthogonal group, generalized Roberts orthogonal group, strong Birkhoff orthogonal group and generalized orthogonal basis are introduced. Secondly, the conclusion that any two nonzero generalized orthogonal groups must be linearly independent group is proven. And the existence of nonzero generalized orthogonal group and its linear correlation are discussed preliminarily, as well as some related properties of nonempty generalized orthogonal group in specific normed linear space namely the <em>l<sub>p</sub></em> space.展开更多
This study explores how group dynamics(such as group cohesiveness and group norms)influence learners’willingness to communicate(WTC)in an EFL classroom.The results from the 236 questionnaires showed that there was a ...This study explores how group dynamics(such as group cohesiveness and group norms)influence learners’willingness to communicate(WTC)in an EFL classroom.The results from the 236 questionnaires showed that there was a significant correlation between group dynamics and WTC in an EFL classroom.A dozen students who participated in this study were interviewed for more in-depth information and the data revealed that most interviewees acknowledged the importance of the class group.The qualitative data also showed the importance of their own determination to learn in establishing their WTC.展开更多
Nowadays,incorporating cooperative groups and group activities are very common in oral English classroom.By using group dy namics teachers can provide students with large blocks of time for authentic communication,whi...Nowadays,incorporating cooperative groups and group activities are very common in oral English classroom.By using group dy namics teachers can provide students with large blocks of time for authentic communication,while keeping the class focused in English.This paper discusses the importance of group dynamics in the oral English classroom and gives teachers some ideas about group dynamics in language classrooms.展开更多
文摘Let IHn be the (2n+1)-dimensional Heisenberg group. In this paper, we shall give among other things, the properties of some homogeneous norms relative to dilations on the IHn and prove the equivalence of these norms.
基金The first author is supported by the Békésy Postdoctoral fellowship of the Hungarian Ministry of Education B91/2003the second author is supported by the Hungarian National Foundation for Scientific Research (OTKA),grant no. M 36511/2001, T 048780the Széchenyi fellowship of the Hungarian Ministry of Education Sz184/2003.
文摘The （Noerlund） logarithmic means of the Fourier series is：tnf=1/ln ^n-1∑k=1 Skf/n-k, where ln=^n-1∑k=1 1/k In general, the Fej6r （C, 1） means have better properties than the logarithmic ones. We compare them and show that in the case of some unbounded Vilenkin systems the situation changes.
文摘Firstly, in the general normed linear space, the concepts of generalized isosceles orthogonal group, generalized Birkhoff orthogonal group, generalized Roberts orthogonal group, strong Birkhoff orthogonal group and generalized orthogonal basis are introduced. Secondly, the conclusion that any two nonzero generalized orthogonal groups must be linearly independent group is proven. And the existence of nonzero generalized orthogonal group and its linear correlation are discussed preliminarily, as well as some related properties of nonempty generalized orthogonal group in specific normed linear space namely the <em>l<sub>p</sub></em> space.
文摘This study explores how group dynamics(such as group cohesiveness and group norms)influence learners’willingness to communicate(WTC)in an EFL classroom.The results from the 236 questionnaires showed that there was a significant correlation between group dynamics and WTC in an EFL classroom.A dozen students who participated in this study were interviewed for more in-depth information and the data revealed that most interviewees acknowledged the importance of the class group.The qualitative data also showed the importance of their own determination to learn in establishing their WTC.
文摘Nowadays,incorporating cooperative groups and group activities are very common in oral English classroom.By using group dy namics teachers can provide students with large blocks of time for authentic communication,while keeping the class focused in English.This paper discusses the importance of group dynamics in the oral English classroom and gives teachers some ideas about group dynamics in language classrooms.
