Ficha catalográfica v. 10, n. 21: Jul./Dez 2008

Revue européenne des migrations internationales, vol. 21 - n°3 | 2008

$n$-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. ‎$R$...

X iv : g r - qc / 0 21 10 54 v 1 1 4 N ov 2 00 2 Relativistic Elasticity

Relativistic elasticity on an arbitrary spacetime is formulated as a Lagrangian field theory which is covariant under spacetime diffeomorphisms. This theory is the relativistic version of classical elasticity in the hyperelastic, materially frame-indifferent case and, on Minkowski space, reduces to the latter in the limit c → ∞. The field equations are cast into a first – order symmetric hyperb...

Texto Para Discussão N° 115 Testing for Seasonal Unit Roots in a Quarterly Series of Beef Cattle Prices in the State of São Paulo (brazil)

2 Ficha catalográfica 330.115 A284t 1997 Aguirre, Antônio. Testing for seasonal unit roots in a quarterly series of beef cattle prices in the state of São Paulo (Brazil). Belo

ar X iv : h ep - l at / 0 21 10 09 v 1 5 N ov 2

I review recent progress and results in lattice QCD obtained using fermions with exact chiral symmetry.