Results 41 to 50 of about 2,484,606 (341)

Insight on the Nonhomogeneous Pantograph Equation with an Arbitrary Polynomial of Degree n: Explicit Solution

Mathematics
This paper solves a nonhomogeneous version of the pantograph equation. The nonhomogeneous term is taken as a polynomial of degree n with arbitrary coefficients.
Mona D. Aljoufi
doaj   +1 more source

Exact cosmological solutions for MOG [PDF]

The European Physical Journal C, 2015
8 pages, to appear in European Physical Journal ...
openaire   +4 more sources

Exact charged traversable wormhole solution

Physics Letters B
An exact analytical solution for the charged traversable wormhole solution has been found by solving minimally coupled Einstein-Maxwell-Scalar (EMS) field equations.
Bobur Turimov, Ahmadjon Abdujabbarov, Bobomurat Ahmedov, Zdeněk Stuchlík   +3 more
doaj   +1 more source

General solutions of the Laplace equation

Partial Differential Equations in Applied Mathematics, 2022
With the purpose of concisely and effectively obtaining the general or exact solutions of partial differential equations (PDEs), we put forward some universal Z1transformations in present paper.
Hong Lai Zhu
doaj   +1 more source

Another exact inflationary solution

, 2000
A new closed-form inflationary solution is given for a hyperbolic interaction potential. The method used to arrive at this solution is outlined as it appears possible to generate additional sets of equations which satisfy the model.
A. Abdel-Rahman, A. Dolgov, A. G. Muslimov, A. Linde, Adam T. Kruger, B. Ratra, C. W. Misner, D. Pavon, D. S. Salopek, E. Kolb, F. E. Schunck, F. Lucchin, G. F. R. Ellis, J. D. Barrow, J. D. Barrow, J. E. Lidsey, J. Islam, J. Lima, J. Matyjasek, J. W. Norbury, J. W. Norbury, John W. Norbury, K. Coble, K. Freese, L. Ford, L. Parker, M. Berman, M. Gasperini, M. Ozer, M. Reuter, P. J. E. Peebles, P. Peebles, S. Barr, S. P. Starkovich, T. Olson, V. M. Zhuravlev, W. Chen, Y. Fujii   +37 more
core   +2 more sources

Analytical and Numerical Investigation for the Inhomogeneous Pantograph Equation

Axioms
This paper investigates the inhomogeneous version of the pantograph equation. The current model includes the exponential function as the inhomogeneous part of the pantograph equation.
Faten Aldosari, Abdelhalim Ebaid
doaj   +1 more source

THE MATHEMATICAL MODEL OF DOME COVERING INDUSTRIAL FACILITY

Architecture and Engineering, 2017
A statically determinate flat truss models the industrial facility's arch. To derive dependence of structural deflection on the number of panels in a span, the Maxwell–Mohr equation, computer mathematics system Maple and the induction method are applied.
Mikhail Kirsanov, Sergei Astahov
doaj   +1 more source

On the sets of exact and approximate solutions

Journal of Mathematical Analysis and Applications, 2003
The authors are concerned with the size of the set of solutions of a functional equation in relation to the size of the set of approximate solutions to the same equation. In the case of linear equations of a certain type (such as Cauchy or other generalized polynomial equations) or linear inequalities (such as convexity), they show that the sets of ...
Józef Tabor, Jacek Tabor
openaire   +3 more sources

Exact Operator Solution of $A_2$-Toda Field Theory [PDF]

, 1998
Quantum $A_2$-Toda field theory in two dimensions is investigated based on the method of quantizing canonical free field. Toda exponential operators associated with the fundamental weights are constructed to the fourth order in the cosmological constant.
Fujiwara, T., Igarashi, H., Takimoto, Y.
core   +3 more sources

A novel analytical treatment for the Ambartsumian delay differential equation with a variable coefficient

AIMS Mathematics
The Ambartsumian delay differential equation with a variable coefficient is considered in this paper. An effective transformation is produced to convert the extended Ambartsumian equation to the pantograph model.
Rana M. S. Alyoubi, Abdelhalim Ebaid, Essam R. El-Zahar, Mona D. Aljoufi   +3 more
doaj   +1 more source