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Whitney equisingularity, euler obstruction and invariants of map germs from Cn to C3, n > 3
(2007-01-01)
We study how to minimize the number of invariants that is sufficient for the Whitney equisingularity of a one parameter deformation of any finitely determined holomorphic germ f : (Cn, 0) → (C3, 0), with n > 3. Gaffney ...
On the invariance of polarization propagators at SOPPA level of approach under unitary transformations of MOs
(Elsevier Science, 2020-12)
Polarization propagators can be identified with linear responses of a system to external/internal perturbing fields, being that responses experimentally measurable. Then, approximated and reliable calculations with propagators ...
Gauge invariant descriptions of gluon polarizations revisited
(AMER PHYSICAL SOC, 2013)
Gauge invariant descriptions of gluon polarizations
(AMER PHYSICAL SOC, 2013)
Gluon polarization tensor and dispersion relation in a weakly magnetized medium
(2021)
We study the polarization and dispersion properties of gluons moving within a weakly magnetized background at one-loop order. To this end, we show two alternative derivations of the charged fermion propagator in the weak ...
Approximation by partial isometries and symmetric approximation of finite frames
(Birkhauser Boston Inc, 2018-08)
We solve the problem of best approximation by partial isometries of given rank to an arbitrary rectangular matrix, when the distance is measured in any unitarily invariant norm. In the case where the norm is strictly convex, ...
Gauge invariant descriptions of gluon polarizations revisitedPHYSICAL REVIEW DPHYS REV D
(AMER PHYSICAL SOC, 2016)
Gauge invariant descriptions of gluon polarizationsPHYSICAL REVIEW DPHYS REV D
(AMER PHYSICAL SOC, 2016)
Scale invariance of the primordial tensor power spectrum
(American Physical Society, 2017)
Future cosmic microwave background polarization experiments will search for evidence of primordial tensor modes at large angular scales, in the multipole range 4≤≤50. Because in that range there is some mild evidence of ...