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13 papers · 1 filter
Supertrace divergence terms for the Witten Laplacian
P. Gilkey, K. Kirsten, D. Vassilevich
We use invariance theory to compute the divergence term in the super trace for the twisted de Rham complex for a closed Riemannian manifold.
The BGQ spectral sequence for noncommutative spaces
Christopher J. Pappacena
We prove an analogue of the Brown-Gersten-Quillen (BGQ) spectral sequence for noncommutative spaces. As applications, we consider this spectral sequence for affine and projective s…
Affine semiprime algebras of GK dimension one are (still) pi
Christopher J. Pappacena, Lance W. Small, Jeanne Wald
In this note, we give a new proof of the fact that an affine semiprime algebra R of Gelfand-Kirillov dimension 1 satisfies a polynomial identity. Our proof uses only the growth pro…
Parameter Space Investigations of Free Fermionic Heterotic Models
Gerald Cleaver
I survey the parameter space of NAHE-based free fermionic heterotic string models. First, I discuss flat directions of the low energy effective field theories and show that D-flat…
Duality symmetry of the p-form effective action and super trace of the twisted de Rham complex
P. Gilkey, K. Kirsten, D. Vassilevich +1
We consider quantum p-form fields interacting with a background dilaton. We calculate the variation with respect to the dilaton of a difference of the effective actions in the mode…
Magnetic polarizability of hadrons from lattice QCD
L. Zhou, F. X. Lee, W. Wilcox +1
We extract the magnetic polarizability from the quadratic response of a hadron's mass shift in progressively small static magnetic fields. The calculation is done on a 24x12x12x24…