In this paper , we have established an intimate connection between near-nings and linear automata,and obtain the following results: 1) For a near-ring N there exists a linear GSA S with N ≌ N(S) iff (a) (N, +) is abe...In this paper , we have established an intimate connection between near-nings and linear automata,and obtain the following results: 1) For a near-ring N there exists a linear GSA S with N ≌ N(S) iff (a) (N, +) is abelian, (b) N has an identity 1, (c) There is some d ∈ Nd such that N0 is generated by {1,d};2) Let h: S → S’ be a GSA- epimorphism. Then there exists a near-ring epimorphism from N(S) to N(S’) with h(qn) = h(q)h(n) for all q ∈ Q and n ∈ N(S);3) Let A = (Q,A,B,F,G) be a GA. Then (a) Aa:=(Q(N(A)) =: Qa,A,B,F/Qa × A) is accessible, (b) Q = 0N(A), (c) A/~:= (Q/~,A,B,F~), Q~) with F^([q], a):= [F(q,a)] and G^([q], a):= G(q,a) is reduced, (d) Aa/~ is minimal.展开更多
Voluntary disclosure is one of the major sign of the mature security market. Chinese securities market is in her young age. The quality and way of information disclosure in listed companies is one of major concern for...Voluntary disclosure is one of the major sign of the mature security market. Chinese securities market is in her young age. The quality and way of information disclosure in listed companies is one of major concern for the market. With the development and expansion of the market, the voluntary disclosure has been drawn a great attention by investors. However, in China, the information disclosure is mainly mandatory and only very a few companies are willing to disclose voluntarily. In general, the information voluntary disclosure in China is lacking. This paper discusses the current status, possibility, and problems for the voluntary disclosure based on data from the annual reports prepared by listed companies. Recommendation for the future improvement and fulfillment of the voluntary disclosure are out forward accordingly.展开更多
文摘In this paper , we have established an intimate connection between near-nings and linear automata,and obtain the following results: 1) For a near-ring N there exists a linear GSA S with N ≌ N(S) iff (a) (N, +) is abelian, (b) N has an identity 1, (c) There is some d ∈ Nd such that N0 is generated by {1,d};2) Let h: S → S’ be a GSA- epimorphism. Then there exists a near-ring epimorphism from N(S) to N(S’) with h(qn) = h(q)h(n) for all q ∈ Q and n ∈ N(S);3) Let A = (Q,A,B,F,G) be a GA. Then (a) Aa:=(Q(N(A)) =: Qa,A,B,F/Qa × A) is accessible, (b) Q = 0N(A), (c) A/~:= (Q/~,A,B,F~), Q~) with F^([q], a):= [F(q,a)] and G^([q], a):= G(q,a) is reduced, (d) Aa/~ is minimal.
文摘Voluntary disclosure is one of the major sign of the mature security market. Chinese securities market is in her young age. The quality and way of information disclosure in listed companies is one of major concern for the market. With the development and expansion of the market, the voluntary disclosure has been drawn a great attention by investors. However, in China, the information disclosure is mainly mandatory and only very a few companies are willing to disclose voluntarily. In general, the information voluntary disclosure in China is lacking. This paper discusses the current status, possibility, and problems for the voluntary disclosure based on data from the annual reports prepared by listed companies. Recommendation for the future improvement and fulfillment of the voluntary disclosure are out forward accordingly.
