منابع مشابه
$n$-cocoherent rings, $n$-cosemihereditary rings and $n$-V-rings
Let $R$ be a ring, and let $n, d$ be non-negative integers. A right $R$-module $M$ is called $(n, d)$-projective if $Ext^{d+1}_R(M, A)=0$ for every $n$-copresented right $R$-module $A$. $R$ is called right $n$-cocoherent if every $n$-copresented right $R$-module is $(n+1)$-coprese-nted, it is called a right co-$(n,d)$-ring if every right $R$-module is $(n, d)$-projective. $R$...
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Shell corrections are important in the determination of nuclear ground– state masses and shapes. Although general arguments favor a regular single– particle dynamics, symmetry–breaking and the presence of chaotic layers cannot be excluded. The latter provide a natural framework that explains the observed differences between experimental and computed masses.
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The computation of n-point planar amplitudes in N=4 SYM at strong coupling is known to be reduced to the search for solutions of the integrable 2d SO(4,2) σ-model with growing asymptotics on the world-sheet and to the study of their Whitham deformations induced by an ǫ-regularization, which breaks both integrability and SO(4,2) symmetry. A multi-parameter (moduli) family of such solutions is co...
متن کاملEditorial Volume 5, Issue 2
Our Journal's tendency towards the real world in applied linguistics and literary studies should have significant epistemological and methodological consequences in researching the fields. The interest in the real world makes the problems we may have in our everyday lives our 'points of departure' in research. According to my experience of research in our universities throughout their history, ...
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ژورنال
عنوان ژورنال: Comunicações
سال: 2018
ISSN: 2238-121X,0104-8481
DOI: 10.15600/2238-121x/comunicacoes.v25n2p1-2