Hafner and Stopple proved a conjecture of Zagier that the inverse Mellin transform symmetric square [Formula: see text]-function associated to Ramanujan tau function has an asymptotic expansion in terms nontrivial zeros Riemann zeta text]. Later, Chakraborty et al. extended this phenomenon for any Hecke eigenform over full modular group. In paper, we study Lambert series text] where is text]th ...

A new multi-state Harten–Lax–van Leer (HLL) approximate Riemann solver for the ideal magnetohydrodynamic (MHD) equations is developed based on the assumption that the normal velocity is constant over the Riemann fan. This assumption is same as that used in the HLLC (‘‘C’’ denotes Contact) approximate Riemann solver for the Euler equations. From the assumption, it is naturally derived that the R...

An approximate solution of the Riemann problem associated with a realisable and objective turbulent second-moment closure, which is valid for compressible flows, is examined. The main features of the continuous model are first recalled. An entropy inequality is exhibited, and the structure of waves associated with the non-conservative hyperbolic convective system is briefly described. Using a l...

In this work, two extensiosn of our previous work are proposed for the simulation of full-Mach-range cavitating flow with sharp interface model. These extensions are: a new interface-interaction solver, which includes a new HLLC Riemann solver suitable for both strong and weak interface interaction with general EOS, and a simple phase-change model which assumes that the phase change is in therm...

We present a theoretical solution for the Riemann problem for the five-equation two-phase non-conservative model of Saurel and Abgrall. This solution is then utilized in the construction of upwind non-conservative methods to solve the general initial-boundary value problem for the two-phase flow model in non-conservative form. The basic upwind scheme constructed is the non-conservative analogue...

In this paper, we present recent results in integral inequality theory. Our results are based on thefractional integration in the sense of Riemann-Liouville

We examine the Kerr/CFT correspondence in Einstein gravity extended with quadratic curvature invariants. consider two explicit examples four and five dimensions compute central charges of asymptotic symmetry algebras near horizon geometries, using improved version BBC formalism that encompasses information Lagrangian. find resulting Cardy entropy differs from Wald entropy, caused by Riemann-squ...

Shock wave theory was studied in literature by many authors. This article presents a survey with references about various topics related to shock waves: Hyperbolic conservation laws, Well-posedness theory, Compactness theory, Shock and reaction-di¤usion wave, The CJ and ZND theory, Existence of detonation in Majda’s model, Premixed laminar ‡ame, Multidimensional gas ‡ows, Multidimensional Riema...

Let F be an algebraic number field. Recently, L. Weng introduced zeta functions of rank n associated to F as a generalization of the Iwasawa-Tate zeta integral from the Arakelov geometric point of view. In the article, we call them the Weng zeta function of rank n. In the case of rank one, the Weng zeta function coincide with the Dedekind zeta function of F . The background and precise definiti...

We study a Riemann problem for the unsteady transonic small disturbance equations that results in a diverging rarefaction problem. The self-similar reduction leads to a boundary value problem with equations that change type (hyperbolic-elliptic) and a sonic line that is a free boundary. We summarize the principal ideas and present the main features of the problem. The flow in the hyperbolic par...