Let $G$ be a finite group and $Gamma(G)$ the prime graph of $G$‎. ‎Recently people have been using prime graphs to study simple groups‎. ‎Naturally we pose a question‎: ‎can we use prime graphs to study almost‎ ‎simple groups or non-simple groups? In this paper some results in‎ ‎this respect are obtained and as follows‎: ‎$Gcong S_p$ if and only‎ ‎if $|G|=|S_p|$ and $Gamma(G)=Gamma(S_p)$‎, ‎whe...

A combinatorial argument for two nite structures to agree on all sentences with bounded quantiier rank in rst-order logic with any set of unary generalized quantiiers, is given. It is known that connectivity of nite structures is neither in monadic 1 1 nor in L !! (Q u), where Q u is the set of all unary generalized quantiiers. Using this combinatorial argument and a combination of second-order...

The research results of coal characterization using the XPS method are summarized. Microsoft Visual Studio.net is utilized to build a database functional group characterization for coal, which contains over 1000 records including the kind of functional group, binding energy value, coal specie, producing area, sample preparation, and literature information. The database can be used to search and...

For a Tychonoff space $X$, we denote by $C_p(X)$ the space of all real-valued continuous functions on $X$ with the topology of pointwise convergence.  We study a functional characterization of the covering property of Hurewicz.

That's it, a book to wait for in this month. Even you have wanted for long time for releasing this book computer assisted learning 3rd international conference iccal 90 hagen frg june 11 13 1990 pr; you may not be able to get in some stress. Should you go around and seek fro the book until you really get it? Are you sure? Are you that free? This condition will force you to always end up to get ...

Inclusive single-particle production cross sections have been calculated including higher-order QCD corrections. Transverse-momentum and rapidity distributions are presented and the scale dependence is studied. The results are compared with experimental data from the CERN Spp̄S Collider and the Fermilab Tevatron. Supported by the Bundesministerium für Forschung und Technologie, 05 5HH 91P(8), Bo...