منابع مشابه
Finite groups have even more centralizers
For a finite group $G$, let $Cent(G)$ denote the set of centralizers of single elements of $G$. In this note we prove that if $|G|leq frac{3}{2}|Cent(G)|$ and $G$ is 2-nilpotent, then $Gcong S_3, D_{10}$ or $S_3times S_3$. This result gives a partial and positive answer to a conjecture raised by A. R. Ashrafi [On finite groups with a given number of centralizers, Algebra Collo...
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Proponents of health savings accounts (HSAs) contend that they will reduce medical expenditures. In practice, however, the effect of HSAs, and the high-deductible health plans that must accompany them, will depend on the actual provisions of those plans and of the plans they replace. We show that typical plans in the market today already contain substantial cost sharing. We find that many HSA/h...
متن کاملfinite groups have even more centralizers
for a finite group $g$, let $cent(g)$ denote the set of centralizers of single elements of $g$. in this note we prove that if $|g|leq frac{3}{2}|cent(g)|$ and $g$ is 2-nilpotent, then $gcong s_3, d_{10}$ or $s_3times s_3$. this result gives a partial and positive answer to a conjecture raised by a. r. ashrafi [on finite groups with a given number of centralizers, algebra collo...
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BACKGROUND AND AIM: Oral diseases are very important because they impose economic and social burden on societies. Given the resource scarcity, it is necessary to devise cost-effective and scientific strategies to prevent and control oral diseases. This study aimed to estimate the potential cost-savings for dental caries treatment associated with Community Water Fluoridation Program (CWFP) in Ke...
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We describe an extension of the description logic underlying OWLDL, SHOIN , with a number of expressive means that we believe will make it more useful in practise. Roughly speaking, we extend SHOIN with all expressive means that were suggested to us by ontology developers as useful additions to OWL-DL, and which, additionally, do not affect its decidability. We consider complex role inclusion a...
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ژورنال
عنوان ژورنال: Journal of Oncology Practice
سال: 2006
ISSN: 1554-7477
DOI: 10.1200/jop.2.4.202