首页 | 本学科首页 官方微博 | 高级检索

 按 中文标题 英文标题 中文关键词 英文关键词 中文摘要 英文摘要 作者中文名 作者英文名 单位中文名 单位英文名 基金中文名 基金英文名 杂志中文名 杂志英文名 栏目英文名 栏目英文名 DOI 责任编辑 分类号 杂志ISSN号 检索 检索词:

 收费全文 11篇 完全免费 1篇
 数学 12篇
 2011年 1篇 2008年 1篇 2004年 2篇 2000年 2篇 1999年 1篇 1998年 3篇 1997年 2篇

1.
Let M be a manifold (possibly with boundary), and f:M→M be continuous. Call a closed invariant set A包含M an adic attractor of f if it attracts almost all points (in the sense of Lebesgue measure) and the restriction f|A is topologically conjugate to an adic system. Such an attractor A is called n-adic if the restriction flA can be topologically conjugate the n-adic system.  相似文献
2.

3.
4.
Let M be a compact, orientable, irreducible ,irreducible, atoroidal, anannular 3-manifold with one component T0 of M a torus. Suppose that r1 and r2 are two slopes on T0 In this paper,we prove that 1) if M(r1) is reducible while M(r2) contains an essential torus, then Δ(r1,r2)≤4;2) if M(r1) is reducible while M(r2) contains an essential torus, then Δ(r1,r2)≤4.  相似文献
5.
1 IntroductionLet M be a manifold (possibly with boundary), and F : M → M be continuous. Call a closed invariant set A (?) M an adic attractor of f if it attracts almost all points (in the sense of Lebesgue measure) and the restriction f|A is topologically conjugate to an adic system. Such an attractor A is called n-adic if the restriction f|A can be topologically conjugate the n-adic system.  相似文献
6.
§１．　ＩｎｔｒｏｄｕｃｔｉｏｎＬｅｔＭｂｅａｃｏｍｐａｃｔ，ｏｒｉｅｎｔａｂｌｅ，ｉｒｒｅｄｕｃｉｂｌｅ，－ｉｒｒｅｄｕｃｉｂｌｅ，ａｎａｎｎｕｌａｒ，ａｔｏｒｏｉｄａｌ３－ｍａｎｉｆｏｌｄｗｉｔｈｏｎｅｃｏｍｐｏｎｅｎｔＴｏｆＭａｔｏｒｕｓ．ＡｓｌｏｐｅｒｏｎＴｉｓａＴ－ｉｓｏｔｏｐｙｃｌａｓｓｏｆｅｓｓｅｎｔｉａｌ，ｕｎｏｒｉｅｎｔ－ｅｄ，ｓｉｍｐｌｅｃｌｏｓｅｄｃｕｒｖｅｓｏｎＴ，ａｎｄｔｈｅｄｉｓｔａｎｃｅｂｅｔｗｅｅｎｔｗｏｓｌｏｐｅｓｒ１ａｎｄｒ２，ｄｅｎｏｔｅｄｂｙ△（ｒ１，…  相似文献
7.

Let K be a knot in a 3-sphere S^3 and N( K ) be a regular neighbourhood of K in S^3. Let Mk = S^3 - intN (K), and T = э Mk. A slope r in T is a T-isotopy class of essential, unoriented, simple, closed curves in T. The distance between two slopes r1 and r2 in T,  相似文献
8.

9.

10.