This paper tries to introduce the chief contemporary pragmatic theories,namely Deixis,Conversational Implicature,Theory of Speech Acts,Presupposition,Conversation Analysis,Relevance Theory,Theory of Adaptation,and Memetics of Language,together with their development and application in China,in the hope of helping pragmatics lovers with their research.
The Lexical semantic system mainly expresses regular character,but it also has nonlinear complex system character. It mainly adopts semantic field theory to research the former,and adopt semantic net,associated net theory to research the latter. The two methods are uniformed in the same research of the lexical semantic system.
The clause-oriented approach to the complete translation studies the central role of the clause in three stages, the governing force of the clause in comprehension and expression and its intermediary force in transformation.
Tilting modules for classical groups and howe duality in positive characteristics
We use the theory of tilting modules for algebraic groups to propose a characteristic free approach to "Howe duality" in the exterior algebra.
In our paper [KR] we began a systematic study of representations of the universal central extension[InlineEquation not available: see fulltext.] of the Lie algebra of differential operators on the circle.
This study was continued in the paper [FKRW] in the framework of vertex algebra theory.
In the present paper we study the remaing nontrivial case, that of a negative central charge-N.