نتایج جستجو برای: right engel elements
تعداد نتایج: 550850 فیلتر نتایج به سال:
The Extended Engel Expansion is an algorithm that leads to unique series expansions of q-series. Various examples related to classical partition theorems, including the RogersRamanujan identities, have been given recently. The object of this paper is to show that the new and elegant Rogers-Ramanujan generalization found by Garrett, Ismail, and Stanton also ts into this framework. This not only ...
Let R be a commutative ring with unity of characteristic r≥0 and G be a locally finite group. For each x and y in the group ring RG define [x,y]=xy-yx and inductively via [x ,_( n+1) y]=[[x ,_( n) y] , y]. In this paper we show that necessary and sufficient conditions for RG to satisfies [x^m(x,y) ,_( n(x,y)) y]=0 is: 1) if r is a power of a prime p, then G is a locally nilpotent group an...
this work is a continuation of [a. o. asar, on infinitely generated groups whose proper subgroups are solvable, {em j. algebra}, {bf 399} (2014) 870-886.], where it was shown that a perfect infinitely generated group whose proper subgroups are solvable and in whose homomorphic images normal closures of finitely generated subgroups are residually nilpotent is a fitting$p$-g...
The Extended Engel Expansion is an algorithm that leads to unique series expansions of q-series. Various examples related to classical partition theorems, including the Rogers-Ramanujan identities, have been given recently. The object of this paper is to show that the new and elegant Rogers-Ramanujan generalization found by Garrett, Ismail, and Stanton also ts into this framework. This not only...
By relating Engel curves and social learning, we explain the existence of differently shaped Engel curves—an interesting phenomenon in the theory of demand. A formal approach to cultural learning within a population of consumers accounts for some cognitive foundations of these demand patterns. We find that a changing influence of an individual’s role models due to her increasing income, which e...
1 Medical Genetics Service, Hospital de Cĺınicas de Porto Alegre, Rua Ramiro Barcelos, 2350, 90035-903 Porto Alegre, RS, Brazil 2 PPG Ciências Farmacêiticas, Universidade Federal do Piauı́, 64049-550 Terezina, PI, Brazil 3 Genetics Service, Hospital Universitário, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil 4 PPG BioSaúde, Universidade Luterana do Brasil, Avenida ...
4. Prentice RL, Manson JE, Langer RD, Anderson GL, Pettinger M, Jackson RD, et al. Benefits and risks of postmenopausal hormone therapy when it is initiated soon after menopause. Am J Epidemiol. 2009; 170 (1): 12-23. References Mailing address: Flávio Danni Fuchs • Rua Ramiro Barcelos 2350, Sala 2060 Rio Branco 90035-903 Porto Alegre, RS Brazil E-mail: [email protected] Manuscript received D...
*Departamento de Zoologia e Antropologia da Faculdade de Cie“ ncias da Universidade do Porto, Prac a GomesTeixeira, 4099-002 Porto, Portugal. CIIMAR, Rua dos Bragas 177, 4050-123 Porto, Portugal. Faculdade de Cie“ ncias da Sau¤ de da Universidade Fernando Pessoa, Rua Carlos da Maia 296, 4200-150 Porto, Portugal. ISPA, Rua Jardim doTabaco 34, 1149-041 Lisboa, Portugal. Corresponding author, e-ma...
New material of the wasp family Maimetshidae (Apocrita) is presented from four Cretaceous amber deposits - the Neocomian of Lebanon, the Early Albian of Spain, the latest Albian/earliest Cenomanian of France, and the Campanian of Canada. The new record from Canadian Cretaceous amber extends the temporal and paleogeographical range of the family. New material from France is assignable to Guyotem...
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