Results 31 to 40 of about 375,405 (243)
Thermodynamic perturbation theory and equation of state developments
Condensed Matter Physics, 2021 An alternative way of utilizing the thermodynamic perturbation theory of Wertheim for the development of equations of state for associating fluid models is presented and detailed for water.
I. Nezbeda
doaj +1 more source
Dyonic Giant Magnons in CP^3: Strings and Curves at Finite J
, 2009 This paper studies giant magnons in AdS_4 x CP^3 using both the string sigma-model and the algebraic curve. We complete the dictionary of solutions by finding the dyonic generalisation of the CP^1 string solution, which matches the `small' giant magnon ...
G. Grignani +6 more
core +3 more sources
Hierarchical renormalization goup fixed points
, 1994 Hierarchical renormalization group transformations are related to non-associative algebras. Non-trivial infrared fixed points are shown to be solutions of polynomial equations. At the example of a scalar model in $d(\ge2)$ dimensions some methods for the
A. Pordt +6 more
core +1 more source
Exact solution of the two-axis countertwisting Hamiltonian [PDF]
, 2016 It is shown that the two-axis countertwisting Hamiltonian is exactly solvable when the quantum number of the total angular momentum of the system is an integer after the Jordan-Schwinger (differential) boson realization of the SU(2) algebra.
Draayer, Jerry P. +2 more
core +2 more sources
Simple Equations Method and Non-Linear Differential Equations with Non-Polynomial Non-Linearity
Entropy, 2021 We discuss the application of the Simple Equations Method (SEsM) for obtaining exact solutions of non-linear differential equations to several cases of equations containing non-polynomial non-linearity. The main idea of the study is to use an appropriate
Nikolay K. Vitanov +1 more
doaj +1 more source
International Journal of Mathematical, Engineering and Management Sciences, 2023 The objective of this study is to explore non-dyadic Haar wavelets for higher order integro-differential equations. In this research article, non-dyadic collocation method is introduced by using Haar wavelet for approximating the solution of higher order
Ratesh Kumar, Sabiha Bakhtawar
doaj +1 more source
Advances in Mechanical Engineering, 2016 A new formulation for the non-dimensional dynamic influence function method, which was developed by the authors, is proposed to efficiently extract eigenvalues and mode shapes of clamped plates with arbitrary shapes.
Sang-Wook Kang, Satya N Atluri
doaj +1 more source
Canonical transformations of linear Hamiltonian systems [PDF]
E3S Web of ConferencesIn this paper we consider the linear Hamiltonian systems of differential equations. We explore the normalization of a non-singular Hamiltonian matrix. We solve a system of matrix equations to find the generating function of the canonical transformation ...
Titova Tatiana
doaj +1 more source
Synthesis for Polynomial Lasso Programs
, 2013 We present a method for the synthesis of polynomial lasso programs. These programs consist of a program stem, a set of transitions, and an exit condition, all in the form of algebraic assertions (conjunctions of polynomial equalities).
A. Tiwari +10 more
core +1 more source
A global method for coupling transport with chemistry in heterogeneous porous media [PDF]
, 2009 Modeling reactive transport in porous media, using a local chemical equilibrium assumption, leads to a system of advection-diffusion PDE's coupled with algebraic equations.
A Mazzia +39 more
core +3 more sources