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20022008
most citedFirst measurement of the forward-backward charge asymmetry in top quark pair production

239 citations

9 papers

math.AC2005

Generic fiber rings of mixed power series/polynomial rings

William Heinzer, Christel Rotthaus, Sylvia Wiegand

Let K be a field, m and n positive integers, and X = {x_1,...,x_n}, and Y = {y_1,..., y_m} sets of independent variables over K. Let A be the polynomial ring K[X] localized at (X).…

math.AC2005

Gorenstein dimension of modules over homomorphisms

Lars Winther Christensen, Srikanth Iyengar

Given a homomorphism of commutative noetherian rings R --> S and an S-module N, it is proved that the Gorenstein flat dimension of N over R, when finite, may be computed locally ov…

quant-ph200569 cited

Entanglement Evolution in the Presence of Decoherence

Jin Wang, Herman Batelaan, Jeremy Podany +1

The entanglement of two qubits, each defined as an effective two-level, spin 1/2 system, is investigated for the case that the qubits interact via a Heisenberg XY interaction and a…

math.AG2005

Resolutions of ideals of fat points with support in a hyperplane

Giuliana Fatabbi, Brian Harbourne, Anna Lorenzini

Our results concern minimal graded free resolutions of fat point ideals for points in a hyperplane. Suppose, for example, that I(m,d) is the ideal defining r given points of multip…

math.AC2004

Hilbert-Samuel functions of modules over Cohen-Macaulay rings

Srikanth Iyengar, Tony J. Puthenpurakal

For a finitely generated, non-free module over a CM local ring $(R,\fm,k)$, it is proved that for the length of $\tor 1RM{R/\fm^{n+1}}$ is given by a polynomial of deg…

math.OA2004

Absolutely Continuous Representations and a Kaplansky Density Theorem for Free Semigroup Algebras

Kenneth R. Davidson, Jiankui Li, David R. Pitts

We introduce notions of absolutely continuous functionals and representations on the non-commutative disk algebra . Absolutely continuous functionals are used to help identify…