Search Results - "Rao, Ravi A"
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Ordered cyclic motifs contribute to dynamic stability in biological and engineered networks
Published in Proceedings of the National Academy of Sciences - PNAS (09-12-2008)“…Representation and analysis of complex biological and engineered systems as directed networks is useful for understanding their global structure/function…”
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2
A stably elementary homotopy
Published in Proceedings of the American Mathematical Society (01-11-2009)“…If R is an affine algebra of dimension d over a perfect C_1 field and \sigma \in SL_{d + 1}(R) is a stably elementary matrix, we show that there is a stably…”
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3
Local-global principle for transvection groups
Published in Proceedings of the American Mathematical Society (01-04-2010)“…In this article we extend the validity of Suslin's Local-Global Principle for the elementary transvection subgroup of the general linear group GL_n(R), the…”
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4
Some remarks on symplectic injective stability
Published in Proceedings of the American Mathematical Society (01-07-2011)“…It is shown that if A over an infinite field of cohomological dimension at most one, with (d +1)! A = A, then Um _{d+1}(A) = e_1\textrm{Sp}_{d+1}(A) is a…”
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A phase II study of ABT-510 (thrombospondin-1 analog) for the treatment of metastatic melanoma
Published in American journal of clinical oncology (01-06-2007)“…Thrombospondins are natural inhibitors of angiogenesis, tumor metastases, and tumor growth (melanoma). ABT-510 is a synthetic analog of thrombospondin-1, well…”
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6
A group structure on squares
Published in Proceedings of the American Mathematical Society (01-04-2008)“…We show that there is an abelian group structure on the orbit set of ``squares'' of unimodular rows of length n over a commutative ring of stable dimension d…”
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A structure theorem for the elementary unimodular vector group
Published in Transactions of the American Mathematical Society (01-07-2006)“…Given a pair of vectors v,w\in R^{r+1} with \langle v,w\rangle=v·w^T=1, A. Suslin constructed a matrix S_r(v,w)\in Sl_{2^r}(R). We study the subgroup SUm_r(R)…”
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8
Suslin matrices and the Euler characteristic
Published in Linear algebra and its applications (01-02-2024)Get full text
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9
Generalised homotopy and commutativity principle
Published in Journal of pure and applied algebra (01-06-2023)“…In this paper, we study the action of special n×n linear (resp. symplectic) matrices which are homotopic to identity on the right invertible n×m matrices. We…”
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10
On a theorem of Keune
Published in Journal of pure and applied algebra (01-04-2022)“…In this paper we first prove that for regular local ring R containing an infinite field, the natural map SLr(R[X],(X2−X)/Er(R[X],(X2−X))→SK1(R[X],(X2−X)) is an…”
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11
Equality of elementary linear and symplectic orbits with respect to an alternating form
Published in Journal of algebra (01-04-2016)“…An elementary symplectic group w.r.t. an invertible alternating matrix is defined. It is shown that the group of symplectic transvections of a symplectic…”
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12
Homotopy and commutativity principle
Published in Journal of algebra (15-08-2017)“…We give evidence for the principle that a (special linear, symplectic, orthogonal) matrix over a commutative ring which is homotopic to the identity will…”
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13
A nice group structure on the orbit space of unimodular rows-II
Published in Journal of algebra (01-06-2014)“…We establish an Excision type theorem for niceness of group structure on the orbit space of unimodular rows of length n modulo elementary action. This permits…”
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14
Suslin forms and the Hodge star operator
Published in Linear algebra and its applications (01-07-2014)“…We show that the Suslin forms are themselves a product of Suslin matrices (over the integers) and that their corresponding linear transformation is the Hodge…”
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15
An Abelian Group Structure on Orbits of “Unimodular Squares” in Dimension 3
Published in Journal of algebra (01-12-1998)Get full text
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16
Injective stability for K 1 of classical modules
Published in Journal of algebra (15-02-2010)“…In Rao (1994) [14], the second author and W. van der Kallen showed that the injective stabilization bound for K 1 of the general linear group is d + 1 over a…”
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Injective stability for K1 of the orthogonal group
Published in Journal of algebra (15-01-2010)Get full text
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18
Generalised homotopy and commutativity principle
Published 08-11-2022“…In this paper, we study the action of special $n\times n $ linear (resp. symplectic) matrices which are homotopic to identity on the right invertible $n\times…”
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19
Injective stability for K 1 of the orthogonal group
Published in Journal of algebra (15-01-2010)“…The injective stabilization bound of L.N. Vaserstein for K 1 of the orthogonal group over an affine algebra over a perfect C 1 -field is discussed…”
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20
Quillen–Suslin theory revisited
Published in Journal of pure and applied algebra (01-11-2007)“…We partially answer a question of T.Y. Lam by obtaining partial generalized Local Global and Monic Inversion Principles for the action of the elementary…”
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