ABSTRACT We examine general relativistic radiatively-driven spherical winds, using the basic equations for radiation hydrodynamics under moment formalism. Moment are often closed, equilibrium diffusion approximation, which has an acausal problem, and furthermore, gives nodal-type critical points. Instead, we use non-equilibrium approximation with a closure relation of variable Eddington factor,...

The Meshless Finite Volume Method (MFVM) is developed for solving elasto-static problems, through a new Meshless Local Petrov-Galerkin (MLPG) “Mixed” approach. In this MLPG mixed approach, both the strains as well as displacements are interpolated, at randomly distributed points in the domain, through local meshless interpolation schemes such as the moving least squares(MLS) or radial basis fun...

We treat the problem of completing the moduli space for roots of line bundles on curves. Special attention is devoted to higher spin curves within the universal Picard scheme. Two new different constructions, both using line bundles on nodal curves as boundary points, are carried out and compared with pre-existing ones.

Let X be a complete intersection of two hypersurfaces Fn and Fk in P 5 of degree n and k respectively with n ≥ k, such that the singularities of X are nodal and Fk is smooth. We prove that if the threefold X has at most (n + k − 2)(n − 1) − 1 singular points, then it is factorial.

We prove that a nodal quartic threefold X containing no planes is Q-factorial provided that it has not more than 12 singular points, with the exception of a quartic with exactly 12 sin-gularities containing a quadric surface. We give some geometrical constructions related to the latter quartic.

Let {∞+,∞−} be the two points above ∞ on the real hyperelliptic curve H : y = (x − 1) ∏2g i=1(x− ai). We show that the divisor ([∞ ]− [∞−]) is torsion in Jac J for a dense set of (a1, a2, . . . , a2g) ∈ (−1, 1). In fact, we prove by degeneration to a nodal P that an associated period map has derivative generically of full rank.

The Material Point Method (MPM) has been very successful in providing solutions to many challenging problems involving large deformations. Nevertheless there are some important issues that remain to be resolved with regard to its analysis. One key challenge applies to both MPM and Particle in Cell (PIC) methods and arises from the difference between the number of particles and the number of the...

On the verge of the Constitutionalist Revolution in Iran, the three social forces existing in the socio-political arena were competing with each other and at the same time, struggling with the Monarchy to increase their share of power: independent intellectuals, traditional followers of religion, and merchants. This rivalry set the scene for a discursive battle in which, each social force was t...

the influence of explant nodal positions on the in vitro shoot growth and proliferation were studied in the two rose cvs. ‘bianca’ and ‘el torro’. third, fourth and fifth nodal explants were cultured on the modified ms medium supplemented with 1.0 and 5.0 mg/l ba. in both the cultivars, higher rate of proliferation (‘bianca’ 3.75; ‘el torro’ 2.65) were obtained from the explants distal to the a...

This paper proposes an algorithm for transmission cost allocation (TCA) in a large power system based on nodal pricing approach using the multi-area scheme. The nodal pricing approach is introduced to allocate the transmission costs by the control of nodal prices in a single area network. As the number of equations is dependent on the number of buses and generators, this method will be very ti...