Results 1 to 10 of about 3,780 (109)
REVERSIBLE SKEW LAURENT POLYNOMIAL RINGS AND DEFORMATIONS OF POISSON AUTOMORPHISMS [PDF]
A skew Laurent polynomial ring S = R[x±1;α] is reversible if it has a reversing automorphism, that is, an automorphism θ of period 2 that transposes x and x-1 and restricts to an automorphism γ of R with γ = γ-1. We study invariants for reversing automorphisms and apply our methods to determine the rings of invariants of reversing automorphisms of the
Jordan, D.A., Sasom, N.
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Prime Ideals and Strongly Prime Ideals of Skew Laurent Polynomial Rings [PDF]
We first study connections between α-compatible ideals of R and related ideals of the skew Laurent polynomials ring R[x,x−1;α], where α is an automorphism of R.
E. Hashemi
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Cremmer-Gervais cluster structure on SLn. [PDF]
We study natural cluster structures in the rings of regular functions on simple complex Lie groups and Poisson-Lie structures compatible with these cluster structures. According to our main conjecture, each class in the Belavin-Drinfeld classification of
Gekhtman M, Shapiro M, Vainshtein A.
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Radicals of skew polynomial rings and skew Laurent polynomial rings
In this paper, \(R\) denotes an associative ring with identity, and \(\sigma\) stands for an automorphism of \(R\). \(W(R)\), \(L(R)\) and \(N(R)\) denote the Wedderburn radical, the Levitzki radical and the upper nil radical of \(R\), respectively. An ideal \(I\) of \(R\) is called a \(\sigma\)-ideal if \(\sigma(I)\subseteq I\).
Hong, Chan Yong +2 more
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CHARACTERIZATIONS OF ELEMENTS IN PRIME RADICALS OF SKEW POLYNOMIAL RINGS AND SKEW LAURENT POLYNOMIAL RINGS [PDF]
We show that the -prime radical of a ring R is the set of all strongly -nilpotent elements in R, where is an automorphism of R. We observe some conditions under which the -prime radical of R coincides with the prime radical of R. Moreover we characterize elements in prime radicals of skew Laurent polynomial rings, studying (; 1 )- (semi)primeness of ...
Jeoung-Soo Cheon +3 more
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Zero-divisor graphs of twisted partial skew generalized power series rings [PDF]
Purpose – The aim of this paper is to investigate the relationship between the ring structure of the twisted partial skew generalized power series ring RG,≤;Θ and the corresponding structure of its zero-divisor graph Γ̅RG,≤;Θ. Design/methodology/approach
Mohammed H. Fahmy +2 more
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Twisted vertex operators and unitary Lie algebras [PDF]
A representation of the central extension of the unitary Lie algebra coordinated with a skew Laurent polynomial ring is constructed using vertex operators over an integral Z_2-lattice.
Chen, Fulin +3 more
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Primitive skew Laurent polynomial rings [PDF]
In [8] the author studied the question of the primitivity of an Ore extension R[x, δ], where δ is a derivation of the ring R. If a is an automorphism of R then it can be shown that R[x, α] is primitive if the following conditions are satisfied: (i) no power αsS ≥ 1, of α is inner; (ii) the only ideals of R invariant under α are 0 and R.
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Secants of minuscule and cominuscule minimal orbits [PDF]
We study the geometry of the secant and tangential variety of a cominuscule and minuscule variety, e.g. a Grassmannian or a spinor variety. Using methods inspired by statistics we provide an explicit local isomorphism with a product of an affine space ...
Laurent Manivel, Mateusz, Micha Lek
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PRIME RADICALS OF SKEW LAURENT POLYNOMIAL RINGS [PDF]
Summary: Let \(R\) be a ring with an automorphism \(\sigma\). An ideal \(I\) of \(R\) is a `\(\sigma\)-ideal' of \(R\) if \(\sigma(I)=I\). A proper ideal \(P\) of \(R\) is a `\(\sigma\)-prime ideal' of \(R\) if \(P\) is a \(\sigma\)-ideal of \(R\) and for \(\sigma\)-ideals \(I\) and \(J\) of \(R\), \(IJ\subseteq P\) implies that \(I\subseteq P\) or \(J\
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