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math-ph2020
On the Preservation of Quasilocality by the Integration-Out Transformation
Tamer Tlas
We demonstrate that the integration-out step of the renormalization group transformation preserves the quasilocality of the effective action. This is shown in the case of a single,…
math.CA2020★ 3 cited
Bump Functions With Monotone Fourier Transforms Satisfying Decay Bounds
Tamer Tlas
The existence of a smooth, nonnegative, compactly supported function with monotone (on the half-line) Fourier transform satisfying two-sided decay bounds is demonstrated.