Being a prominent theory in the field of language teaching,sociocultural theory(SCT)has become widely applied since it gradually formed during the past century.An overall review and analysis of this theory may offer d...Being a prominent theory in the field of language teaching,sociocultural theory(SCT)has become widely applied since it gradually formed during the past century.An overall review and analysis of this theory may offer different angle for educators to teach languages well in modern times.This paper tries to provide an overview of the development and the main framework with some critical analysis of this theory.展开更多
The notions of practical φ0-stability were introduced for stochastic differential equations. Sufficient conditions on such practical properties were obtained by using the comparison principle and the cone-valued Lyap...The notions of practical φ0-stability were introduced for stochastic differential equations. Sufficient conditions on such practical properties were obtained by using the comparison principle and the cone-valued Lyapunov function methods. Based on an extended comparison theorem, a perturbation theory of stochastic differential systems was given.展开更多
文摘Being a prominent theory in the field of language teaching,sociocultural theory(SCT)has become widely applied since it gradually formed during the past century.An overall review and analysis of this theory may offer different angle for educators to teach languages well in modern times.This paper tries to provide an overview of the development and the main framework with some critical analysis of this theory.
基金Project (60704007) supported by the National Natural Science Foundation of China
文摘The notions of practical φ0-stability were introduced for stochastic differential equations. Sufficient conditions on such practical properties were obtained by using the comparison principle and the cone-valued Lyapunov function methods. Based on an extended comparison theorem, a perturbation theory of stochastic differential systems was given.
