Results 31 to 40 of about 288 (167)

Growth and Zeros of Meromorphic Solutions to Second-Order Linear Differential Equations

open access: yesInternational Journal of Analysis and Applications, 2016
The main purpose of this article is to investigate the growth of meromorphic solutions to homogeneous and non-homogeneous second order linear differential equations f00+Af0+Bf = F, where A(z), B (z) and F (z) are meromorphic functions with finite order ...
Maamar Andasmas, Benharrat Belaidi
doaj   +2 more sources

Characteristic estimation of differential polynomials

open access: yesJournal of Inequalities and Applications, 2021
In this paper, we give the characteristic estimation of a meromorphic function f with the differential polynomials f l ( f ( k ) ) n $f^{l}(f^{(k)})^{n}$ and obtain that T ( r , f ) ≤ M N ‾ ( r , 1 f l ( f ( k ) ) n − a ) + S ( r , f ) $$\begin{aligned ...
Min-Feng Chen, Zhi-Bo Huang
doaj   +1 more source

Interaction between coefficient conditions and solution conditions of differential equations in the unit disk

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
The influence of the normality of the coefficient A(z) of the differential equation f(k)+A(z)f=0 on a solution f and also the influence of the normality of a solution f on A(z) are investigated in the unit disk. In particular, an estimate of P. Lappan is
K. E. Fowler, L. R. Sons
doaj   +1 more source

Abelian number fields with frobenian conditions

open access: yesMathematika, Volume 72, Issue 4, October 2026.
Abstract We study the distribution of abelian number fields with frobenian conditions imposed on the conductor. In particular, we find an asymptotic for the number of abelian field extensions of a number field k$k$ whose conductor is the sum of two squares. We also discuss an application of the Brauer group of stacks to quadratic number fields.
Julie Tavernier
wiley   +1 more source

The Benjamin–Ono Equation in the Zero‐Dispersion Limit for Rational Initial Data: Generation of Dispersive Shock Waves

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 9, Page 2107-2157, September 2026.
ABSTRACT The leading‐order asymptotic behavior of the solution of the Cauchy initial‐value problem for the Benjamin–Ono equation in L2(R)$L^2(\mathbb {R})$ is obtained explicitly for generic rational initial data u0$u_0$. An explicit asymptotic wave profile uZD(t,x;ε)$u^\mathrm{ZD}(t,x;\epsilon)$ is given, in terms of the branches of the multivalued ...
Elliot Blackstone   +3 more
wiley   +1 more source

Meromorphic solutions to certain class of differential equations in an angular domain

open access: yesAdvances in Difference Equations, 2019
In this paper, we study the admissible meromorphic solutions to the algebraic differential equation fnf′+Pn−1(f)=uev $f^{n} f' + P_{n-1}( f ) = u\mathrm {e}^{v}$ in an angular domain instead of the whole complex plane, where Pn−1(f) $P_{n-1}(f)$ is a ...
Fengrong Zhang   +3 more
doaj   +1 more source

On growth of meromorphic solutions for linear difference equations with meromorphic coefficients [PDF]

open access: yesAdvances in Difference Equations, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

The Mathematical History Behind the Granger–Johansen Representation Theorem

open access: yesOxford Bulletin of Economics and Statistics, Volume 88, Issue 4, Page 587-602, August 2026.
ABSTRACT When can a vector time series that is integrated once (i.e., becomes stationary after taking first differences) be described in error correction form? The answer to this is provided by the Granger–Johansen representation theorem. From a mathematical point of view, the theorem can be viewed as essentially a statement concerning the geometry of ...
Johannes M. Schumacher
wiley   +1 more source

Quasiconformal folding—a review of ‘Models for the Eremenko–Lyubich class'

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 2, August 2026.
Abstract We review the paper ‘Models for the Eremenko–Lyubich class’ by Bishop, which appeared in the Journal of the London Mathematical Society in 2015, the first of two LMS papers for which Bishop received the LMS Senior Berwick Prize in 2024. This is one of a series of papers where Bishop introduced his new technique of quasiconformal folding, which
Philip J. Rippon
wiley   +1 more source

New exact solutions of the sixth-order thin-film equation with complex method

open access: yesPartial Differential Equations in Applied Mathematics, 2021
By the Wiman–Valiron theory and the complex method, we prove that all meromorphic solutions of the fifth-order ODE unu′′′′′−cu=0belong to W, and obtain several new solutions of the sixth-order thin-film equation comparing to the opening literature.
Guoqiang Dang
doaj   +1 more source

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