共查询到20条相似文献，搜索用时 599 毫秒
1.
借鉴Eisenstein判别法的研究思路,给出了一种判别整系数多项式在有理数域内不可约的新方法。 相似文献
2.
3.
韩雅琴 《辽宁教育学院学报》1997,14(5):57-57
给出了判别整系数多项式在有理数域上不可约的几个充分条件，并根据多项式的系数之和判别某类整系数多项式有理根的存在性及在有理数域上下不可约性。 相似文献
4.
在艾森斯坦因判别法的基础上，对整系数多项式的系数进行了进一步的讨论，给出了两整系数多项式在有理数域上不可约的新的判别法。 相似文献
5.
对Ｅｉｓｅｎｓｔｅｉｎ判别法作了进一步推广，给出了判定整系数多项式在有理数域上不可约的又一定理及其５个重要推论． 相似文献
6.
给出了与艾森斯坦因判别法等价的整系数多项式在有理数域上不可约的判定定理,并将艾森斯坦因判别法进行了推广。 相似文献
7.
8.
Eisen就ein(艾森斯坦因)判别法(以下简写为E判别法)说的是: 如果f(哟=a。扩+气一1砂一1+…十a。(a。沪0)是一个整系数多项式,且有一个素数夕,满足以下条件: L夕十a,; 2.夕】a卜:,夕】a。一:,…,夕}a。; 3.夕2扣。,那么f(哟在有理数域上是不可约的。 (证明可见《高等代数》) 问题一E判别法的应用范围是什么? 答:E判别法是针对。次整系数多次式的.实际上,由于下述原因,这个判别法的应用范围可有所增减. ①任意一次整系数多项式总是Q(Q表示有理数域)上的不可约多项式.因此,,召判别法无须用于一次整系数多项式. 任意二次整系数多项式都能用判… 相似文献
9.
本文论述了整系数多项式的无整数根的充分性、三次整系数多项式在有理数域上不可约的充分性、n次整系数多项式在有理数域上不可约的充分性、整系数多项式无复重根的充分性等整系多项式的若干性质,这些性质对研究整系数多项式及其应用有重要的意义。 相似文献
10.
徐权年 《新疆教育学院学报》1998,(1)
复数域,实数域和有理数域是最为常见的三个数域,因而这三个数域上的多项式是实用最多的多项式。在复数域上,只有一次多项式是不可约的：在实数域上,只有一次多项式和含非实并轭复数根的二次多项式是不可约的。然而,在有理数域上都存在任意次不可约多项式。因此判定有理数域上多项式的可约性就成为十分必要的一个问题。一、问题的解决设f（X）是有理数域上的一个多项式。若是f（x）的系数不全是整数,那么以f（x）系数分母的一个公倍数x乘f（x）,就得到一个整系数多项式kf（x）。显然,多项式f（x）与kf（x）在有理数域上同时可约或同… 相似文献
11.
12.
13.
《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
14.
邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
15.
《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
16.
Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
17.
Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
18.
Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
19.
20.
RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献