Let <em>G</em> be a group. <em>G</em> is right-orderable provided it admits a total order ≤ satisfying <em>hg</em><sub>1</sub> <span style="white-space:normal;&...Let <em>G</em> be a group. <em>G</em> is right-orderable provided it admits a total order ≤ satisfying <em>hg</em><sub>1</sub> <span style="white-space:normal;">≤ <span style="white-space:normal;"><em>hg</em><sub>2 </sub></span></span>whenever <em style="white-space:normal;">g</em><sub style="white-space:normal;">1</sub><span style="white-space:normal;"> </span><span style="white-space:normal;">≤ <i>g</i><sub>2</sub></span>. <em>G</em> is orderable provided it admits a total order ≤ satisfying both: <em style="white-space:normal;">hg</em><sub style="white-space:normal;">1</sub><span style="white-space:normal;"> </span><span style="white-space:normal;">≤ <em>hg</em><sub>2</sub></span> whenever <span style="white-space:nowrap;"><em>g</em><sub>1</sub> ≤ <em>g</em><sub>2</sub></span> and <em style="white-space:normal;">g</em><sub style="white-space:normal;">1</sub><em style="white-space:normal;">h</em><span style="white-space:normal;"> ≤ </span><em style="white-space:normal;">g</em><sub style="white-space:normal;">2</sub><em style="white-space:normal;">h</em> whenever <em>g</em><sub>1</sub> ≤ <em>g</em><sub>2</sub>. A classical result shows that free groups are orderable. In this paper, we prove that left-orderable groups and orderable groups are quasivarieties of groups both with undecidable theory. For orderable groups, we find an explicit set of universal axioms.展开更多
Inclusive Education is one of the most advanced educational concepts at the present time. It advocates raising the participation of children and alleviating the exclusion problems between them at the same time. Althou...Inclusive Education is one of the most advanced educational concepts at the present time. It advocates raising the participation of children and alleviating the exclusion problems between them at the same time. Although China is a large agricultural country, under the situation of fast-growing economic development, an increasing number of adults prefer to work in big city,we call this"working fever". This situation contributes to a growing number of Left-behind children, the problem became severer. As a major receiver of basic education in China, Left-behind children may easily suffering from the problems due to their family. This violates the original intention of Inclusive Education.展开更多
The necessary and sufficient conditions for the semidirect products of two monoids to be left strongly π-inverse are determined. Furthemore,the least group congruence on a strongly π-inverse semidirect is dicussed,a...The necessary and sufficient conditions for the semidirect products of two monoids to be left strongly π-inverse are determined. Furthemore,the least group congruence on a strongly π-inverse semidirect is dicussed,and some important isomorphism theorems are accessed.展开更多
在苏(3 ) 简单的组模型,到一些有以 SM 修理的政变石楠的 SM 费米子的新中立计量器波色子 Z' 夫妇计量政变石楠并且仅仅取决于嵌入的费米子的选择。在这篇论文,我们计算这个新粒子的贡献到过程 e <SUP>+</SUP > e <...在苏(3 ) 简单的组模型,到一些有以 SM 修理的政变石楠的 SM 费米子的新中立计量器波色子 Z' 夫妇计量政变石楠并且仅仅取决于嵌入的费米子的选择。在这篇论文,我们计算这个新粒子的贡献到过程 e <SUP>+</SUP > e <SUP>−</SUP>→
l <SUP>+</SUP > 经由这些检测这个新粒子的可能性在未来处理的 l <SUP>−</SUP>, b,和 c 和学习高精力的线性 e <SUP>+</SUP > 有 500 GeV 和£ < 代替的 √s = 的 e <SUP>−</SUP> collider (LC ) 实验 > int </SUB>= 340 fb <SUP>−1</SUP> 。我们发现新计量器波色子 Z' 对过程 e <SUP>+</SUP 很敏感 > e <SUP>−</SUP>→
b。只要 M <SUB >Z'</SUB>≤
2 TeV,相对修正参数的绝对值比 5% 大。我们为过程 e <SUP>+</SUP 计算提交向后不对称现象和左右的不对称现象 > e <SUP>−</SUP>→
c,与两个通用、没有异例的费米子嵌入钟声。Z' 群众上的界限也在 95% 信心水平以内被估计。展开更多
文摘Let <em>G</em> be a group. <em>G</em> is right-orderable provided it admits a total order ≤ satisfying <em>hg</em><sub>1</sub> <span style="white-space:normal;">≤ <span style="white-space:normal;"><em>hg</em><sub>2 </sub></span></span>whenever <em style="white-space:normal;">g</em><sub style="white-space:normal;">1</sub><span style="white-space:normal;"> </span><span style="white-space:normal;">≤ <i>g</i><sub>2</sub></span>. <em>G</em> is orderable provided it admits a total order ≤ satisfying both: <em style="white-space:normal;">hg</em><sub style="white-space:normal;">1</sub><span style="white-space:normal;"> </span><span style="white-space:normal;">≤ <em>hg</em><sub>2</sub></span> whenever <span style="white-space:nowrap;"><em>g</em><sub>1</sub> ≤ <em>g</em><sub>2</sub></span> and <em style="white-space:normal;">g</em><sub style="white-space:normal;">1</sub><em style="white-space:normal;">h</em><span style="white-space:normal;"> ≤ </span><em style="white-space:normal;">g</em><sub style="white-space:normal;">2</sub><em style="white-space:normal;">h</em> whenever <em>g</em><sub>1</sub> ≤ <em>g</em><sub>2</sub>. A classical result shows that free groups are orderable. In this paper, we prove that left-orderable groups and orderable groups are quasivarieties of groups both with undecidable theory. For orderable groups, we find an explicit set of universal axioms.
文摘Inclusive Education is one of the most advanced educational concepts at the present time. It advocates raising the participation of children and alleviating the exclusion problems between them at the same time. Although China is a large agricultural country, under the situation of fast-growing economic development, an increasing number of adults prefer to work in big city,we call this"working fever". This situation contributes to a growing number of Left-behind children, the problem became severer. As a major receiver of basic education in China, Left-behind children may easily suffering from the problems due to their family. This violates the original intention of Inclusive Education.
文摘The necessary and sufficient conditions for the semidirect products of two monoids to be left strongly π-inverse are determined. Furthemore,the least group congruence on a strongly π-inverse semidirect is dicussed,and some important isomorphism theorems are accessed.
基金supported in part by a grant from Henan Institute of Science and Technology under Grant No.06040
文摘在苏(3 ) 简单的组模型,到一些有以 SM 修理的政变石楠的 SM 费米子的新中立计量器波色子 Z' 夫妇计量政变石楠并且仅仅取决于嵌入的费米子的选择。在这篇论文,我们计算这个新粒子的贡献到过程 e <SUP>+</SUP > e <SUP>−</SUP>→
l <SUP>+</SUP > 经由这些检测这个新粒子的可能性在未来处理的 l <SUP>−</SUP>, b,和 c 和学习高精力的线性 e <SUP>+</SUP > 有 500 GeV 和£ < 代替的 √s = 的 e <SUP>−</SUP> collider (LC ) 实验 > int </SUB>= 340 fb <SUP>−1</SUP> 。我们发现新计量器波色子 Z' 对过程 e <SUP>+</SUP 很敏感 > e <SUP>−</SUP>→
b。只要 M <SUB >Z'</SUB>≤
2 TeV,相对修正参数的绝对值比 5% 大。我们为过程 e <SUP>+</SUP 计算提交向后不对称现象和左右的不对称现象 > e <SUP>−</SUP>→
c,与两个通用、没有异例的费米子嵌入钟声。Z' 群众上的界限也在 95% 信心水平以内被估计。