The YWRL’s revocable KP-ABE scheme [1] is based on the GPSW KP-ABE scheme [2]. There are eight algorithms in total, where the first four are the same with those in the GPSW scheme. Setup(1). This algorithm takes as input a security parameter κ and an attribute universe U = 1, 2, ..., N . It defines two multiplicative cyclic groups G1 and GT with prime order p, g1 as a generator of G1, and an ad...

We show that surface bundles over surfaces with base and fiber of genus at least 2 have non-vanishing simplicial volume. The simplicial volume ||M ||, introduced by Gromov [3], is a homotopy invariant which measures the complexity of the fundamental class of an oriented manifold M . It is determined by the classifying map of the universal covering, and tends to be non-zero for large manifolds o...

We define shriek map for a finite codimensional embedding of fibration. We study the morphisms induced by this shriek maps in the Leray-Serre spectral sequence. As a byproduct we get two multiplicative spectral sequences of algebra wich converge to the Chas and Sullivan algebra H∗(LE) of the total space E of a fibration. We apply this technic to find some result on the intersection morphism I :...

Sell’s approach [32] to the construction of attractors for the Navier– Stokes equations in 3-dimensions is extended to the 3-D stochastic equations with a general multiplicative noise.

In this paper, the linear quadratic regulation problem for discrete-time systems with state delays and multiplicative noise is considered. The necessary and sufficient condition for the problem admitting a unique solution is given. Under this condition, the optimal feedback control and the optimal cost are presented via a set of coupled difference equations. Our approach is based on the maximum...

abstract soil contamination by heavy metals is yet one of the most important environmental concerns. among heavy metals, nickel and cadmium have dangerous influences on human, animals and plants. the objective of this study was to derive a new model for simultaneous phytoextraction of ni and cd from contaminated soils. consequently, a macroscopic model was derived by combining yield reduction f...

Various scholars have lately employed a wide range of strategies to resolve specific types symmetrical fractional differential equations. In this paper, we propose new identity for multiplicatively differentiable functions; based on identity, establish some multiplicative Bullen-type inequalities convex functions. Some applications the obtained results are given.

In the coherence space semantics of linear logic, the webs of the spaces interpreting the exponentials may be deened using multi-cliques (multisets whose supports are cliques) instead of cliques. Inspired by the quantitative semantics of Jean-Yves Girard, we give a characterization of the morphisms of the co-Kleisly category of the corresponding comonad (this category is cartesian closed and, t...

This paper focuses on the problem of multiplicative noise removal. We draw our inspiration from the modeling of speckle noise. By using a MAP estimator, we can derive a functional whose minimizer corresponds to the denoised image we want to recover. Although the functional is not convex, we prove the existence of a minimizer and we show the capability of our model on some numerical examples. We...

We present a new deblurring procedure on images provided by low-resolution synthetic aperture radar (SAR) or simply by multimedia in presence of multiplicative (speckle) or additive noise, respectively. The method we propose is defined as a two-step process. First, we use an original technique for noise reduction in wavelet domain. Then, the learning of a Kohonen self-organizing map (SOM) is pe...