نتایج جستجو برای: i quotients
تعداد نتایج: 1042973 فیلتر نتایج به سال:
Abstract The Torelli group of a closed oriented surface genus $g$?> is the subgroup $\mathcal{I}_g$?> mapping class $\operatorname{Mod}(S_g)$?> consisting all classes that act trivially on homology . One most intriguing open problems concerning groups question whether $\mathcal{I}_3$?> finitely presented. A possible approach to this problem relies study second using spectral seq...
It is known that for a prime p ? = 2, there the following natural description of homology algebra an Abelian group H*(A, ????p) ? ?(A/p)??(pA), and finitely generated groups cohomology ?((A/p)?)?Sym((pA)?). proved are no such descriptions “depending” on A/2 2A only. Moreover, ????2) ????2), A/2, 2A, linear map $$ \overline{\beta} : ? presented. also filtration by subfunctors Hn(A, whose quotien...
The objectives of this study were to compare approaches for evaluating the combined effects of chemical mixtures on the toxicity in field-collected sediments and to evaluate the ability of consensus-based probable effect concentrations (PECs) to predict toxicity in a freshwater database on both a national and regional geographic basis. A database was developed from 92 published reports, which i...
We study countable saturation of metric reduced products and introduce continuous fields of metric structures indexed by locally compact, separable, completely metrizable spaces. Saturation of the reduced product depends both on the underlying index space and the model. By using the Gelfand–Naimark duality we conclude that the assertion “Stone–Čech remainder of the half-line has only trivial au...
Leopardi introduced the notion of a Kronecker quotient in [Paul Leopardi. A generalized FFT for Clifford algebras. Bulletin of the Belgian Mathematical Society, 11:663–688, 2005.]. This article considers the basic properties that a Kronecker quotient should satisfy and additional properties which may be satisfied. A class of Kronecker quotients for which these properties have a natural descript...
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