output
19992026
most citedOn a regular charged black hole with a nonlinear electric source

132 citations

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Showing 2012Show all

10 papers · 1 filter

math.AC2012

On the radical of multigraded modules

Viviana Ene, Ryota Okazaki

We define a functor $\rr^\ast$ from the category of positively determined modules to the category of squarefree modules which plays the role of passing from a monomial ideal to its…

gr-qc2012

Comment on "Non-vacuum conformally flat space-times: dark energy"

Hristu Culetu

Ibohal, Ishwarchandra and Singh proposed a class of exact, non-vacuum and conformally flat solutions of Einstein's equations whose stress tensor has negative pressure. We…

math.RA2012

Real matrix representations for the complex quaternions

Cristina Flaut, Vitalii Shpakivskyi

Starting from known results, due to Y. Tian in [Ti; 00], referring to the real matrix representations of the real quaternions, in this paper we will investigate the left and right…

math.RA2012★ 6 cited

On Generalized Fibonacci Quaternions and Fibonacci-Narayana Quaternions

Cristina Flaut, Vitalii Shpakivskyi

In this paper, we investigate some properties of generalized Fibonacci quaternions and Fibonacci-Narayana quaternions.

math.AC2012★ 15 cited

The binomial edge ideal of a pair of graphs

Viviana Ene, Jürgen Herzog, Takayuki Hibi +1

We introduce a class of ideals generated by a set of 2-minors of -matrix of indeterminates indexed by a pair of graphs. This class of ideals is a natural common generali…

cs.CV2012

Combined Haar-Hilbert and Log-Gabor Based Iris Encoders

Valentina E. Balas, Iulia M. Motoc, Alina Barbulescu

This chapter shows that combining Haar-Hilbert and Log-Gabor improves iris recognition performance leading to a less ambiguous biometric decision landscape in which the overlap bet…