In this article we study the two-dimensional completeλ-translators immersed in the Euclidean space R^3 and Minkovski space R1^ 3.We obtain two classification theorems:one for two-dimensional completeλ-translators x:...In this article we study the two-dimensional completeλ-translators immersed in the Euclidean space R^3 and Minkovski space R1^ 3.We obtain two classification theorems:one for two-dimensional completeλ-translators x:M 2→R^3 and one for two-dimensional complete space-likeλ-translators x:M 2→R1^3,with a second fundamental form of constant length.展开更多
This paper aims to introduce two research articles of the well-known linguist in the field of second language acquisition, Rod Ellis, namely, Preemptive Focus on Form in the ESL Classroom written in 2001 and Investiga...This paper aims to introduce two research articles of the well-known linguist in the field of second language acquisition, Rod Ellis, namely, Preemptive Focus on Form in the ESL Classroom written in 2001 and Investigating grammatical difficulty in second language learning: Implications for second language acquisition research and language testing written in 2008.展开更多
As applied teaching,it refers to focus-on-form instruction and focus-on-meaning instruction which have been used in the second language classroom.By analyzing what the effectiveness of focus-on-form instruction is,wha...As applied teaching,it refers to focus-on-form instruction and focus-on-meaning instruction which have been used in the second language classroom.By analyzing what the effectiveness of focus-on-form instruction is,what the disadvantages of focus-on-meaning instruction are? Therefore,it makes the conclusion:focus-on-form instruction is better than focus-onmeaning instruction within the second language classroom.展开更多
In this paper, we obtain a formula for submanifolds in Sn+p by calculating the Laplacian of the Moebius second fundamental form. Using this formula, we obtain some pinching theorems about the minimal eigenvalue of the...In this paper, we obtain a formula for submanifolds in Sn+p by calculating the Laplacian of the Moebius second fundamental form. Using this formula, we obtain some pinching theorems about the minimal eigenvalue of the Blaschke tensor.展开更多
An asymptotic theory developed for a second-order differential equation. We obtain the form of solutions for some class of the coefficients for large x.
基金Foundation of Natural Sciences of China(11671121,11871197 and 11971153)。
文摘In this article we study the two-dimensional completeλ-translators immersed in the Euclidean space R^3 and Minkovski space R1^ 3.We obtain two classification theorems:one for two-dimensional completeλ-translators x:M 2→R^3 and one for two-dimensional complete space-likeλ-translators x:M 2→R1^3,with a second fundamental form of constant length.
文摘This paper aims to introduce two research articles of the well-known linguist in the field of second language acquisition, Rod Ellis, namely, Preemptive Focus on Form in the ESL Classroom written in 2001 and Investigating grammatical difficulty in second language learning: Implications for second language acquisition research and language testing written in 2008.
文摘As applied teaching,it refers to focus-on-form instruction and focus-on-meaning instruction which have been used in the second language classroom.By analyzing what the effectiveness of focus-on-form instruction is,what the disadvantages of focus-on-meaning instruction are? Therefore,it makes the conclusion:focus-on-form instruction is better than focus-onmeaning instruction within the second language classroom.
文摘In this paper, we obtain a formula for submanifolds in Sn+p by calculating the Laplacian of the Moebius second fundamental form. Using this formula, we obtain some pinching theorems about the minimal eigenvalue of the Blaschke tensor.
文摘An asymptotic theory developed for a second-order differential equation. We obtain the form of solutions for some class of the coefficients for large x.
