9,298 research outputs found
The singularity categories of the Cluster-tilted algebras of Dynkin type
In this paper, we use the stable categories of some selfinjective algebras to
describe the singularity categories of the cluster-tilted algebras of Dynkin
type. Furthermore, in this way, we settle the problem of singularity
equivalence classification of the cluster-tilted algebra of type , and
respectively.Comment: 16 pages. arXiv admin note: substantial text overlap with
arXiv:1012.4661 by other author
Dark radiation from a unified dark fluid model
We present a unified dark fluid model to describe the possible evolutionary
behavior of in dark radiation. This model can be viewed
as an interacting model for the dark sectors, in which dark matter interacts
with dark radiation. We show that the evolution of can
be nicely explained without some drawbacks, such as the blowup of and the non-vanishing interaction at the late time.Comment: 12 pages, 4 figures, revised version accepted by PTE
CP Violation in Predictive Neutrino Mass Structures
We study the CP violation effects from two types of neutrino mass matrices
with (i) , and (ii) , which can
be realized by the high dimensional lepton number violating operators and , respectively. In (i), the neutrino mass spectrum is in
the normal ordering with the lightest neutrino mass within the range
. Furthermore, for a given
value of , there are two solutions for the two Majorana phases
and , whereas the Dirac phase is arbitrary.
For (ii), the parameters of , , , and
can be completely determined. We calculate the CP violating asymmetries in
neutrino-antineutrino oscillations for both mass textures of (i) and (ii),
which are closely related to the CP violating Majorana phases.Comment: 17 pages, 4 figures, revised version accepted by EPJ
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