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math.AG2008
Bundles on non-proper schemes: representability
Vladimir Baranovsky
Let X be a proper scheme over a field k which satisfies Serre's condition S2 and G a reductive group over k. We prove that the functor of principal G-bundles defined away from a no…
math.SP2008★ 1 cited
The Spectrum and the Spectral Type of the Off-Diagonal Fibonacci Operator
David Damanik, Anton Gorodetski
We consider Jacobi matrices with zero diagonal and off-diagonals given by elements of the hull of the Fibonacci sequence and show that the spectrum has zero Lebesgue measure and al…
astro-ph2008★ 32 cited
Cosmic Shear from Scalar-Induced Gravitational Waves
Devdeep Sarkar, Paolo Serra, Asantha Cooray +2
Weak gravitational lensing by foreground density perturbations generates a gradient mode in the shear of background images. In contrast, cosmological tensor perturbations induce a…