Results 111 to 120 of about 4,311,587 (239)

The Periodic Solutions to Kawahara Equation by Means of the Auxiliary Equation with a Sixth-Degree Nonlinear Term

Journal of Mathematics, 2013
It is well known that different types of exact solutions of an auxiliary equation produce new types of exact travelling wave solutions to nonlinear equations.
Zehra Pınar, Turgut Öziş
doaj   +1 more source

On Nontrivial Solutions to Some Nonlinear Ordinary Differential Equations

Journal of Mathematical Analysis and Applications, 1995
Der Autor betrachtet die nichtlineare gewöhnliche Differentialgleichung \((m>0)\) \[ (u^{m+1})''+(x-1)u'= 0\quad\text{für ...
openaire   +1 more source

Multidimensional‐Encoded High‐Fidelity Spectrometers With a Floating‐Base Bipolar Junction

Advanced Functional Materials, EarlyView.
A floating‐base bipolar junction photodetector enables multidimensional spectral encoding through synergistic gate‐ and drain‐bias modulation of interfacial barrier matching. The resulting complementary spectral responses form a diverse, weakly correlated response matrix, enabling robust and high‐fidelity spectral reconstruction even at sub‐nanoampere ...
Sang‐Hyeon Lee, Junho Min, Yonas Tsegaye Megra, Min‐Hye Jeong, Hwi Je Woo, Jaewon Han, Junheon Ha, Gyunghyun Jang, Young Jae Song, Hyun‐Soo Ra, Hoon Hahn Yoon, Jong‐Soo Lee   +11 more
wiley   +1 more source

Nonlinear Boundary Value Problems for Ordinary Differential Equations

Journal of Mathematical Analysis and Applications, 1994
A nonlinear vector boundary value problem of the form (1) \(y'= f(x,y)\), (2) \(B(y)= r\) is considered. Results are presented in which it is shown that solutions \(u(x)\) of (1), (2) can be differentiated with respect to the components of \(r\). These partial derivatives are then shown to be solutions of certain linear boundary value problems.
openaire   +2 more sources

Positive solutions of second-order differential equations

, 2004
We prove a nonoscillation result for second-order nonlinear ordinary differential equations. An application to the Schrodinger equation is also given. (C) 2004 Elsevier Ltd.
Wahlén, Erik, Wahlén, Erik,, Lund University.   +2 more
core   +1 more source

Neuromorphic Devices for Extreme Environments: State‐Variable Reliability and Stabilization Strategies

Advanced Functional Materials, EarlyView.
Neuromorphic devices for extreme environments are interpreted through the physical states that store and process information. Radiation, temperature extremes, and vacuum can perturb vacancies, filaments, trapped charges, polarization, interfaces, and readout signals.
Taehyun Park, Geon Park, Junhyung Cho, Jaechan Song, Wangmyung Choi, Jaehyun Hur, Nicola Gasparini, Hocheon Yoo   +7 more
wiley   +1 more source

Some problems in irregular ordinary differential equations [PDF]

We study the non-autonomous ordinary differential equation x = f (t, x) in the situation when the vector field f is of limited regularity, typically belonging to a space LP (O,T; Lq (JRn)).
Sharples, Nicholas
core  

APPROXIMATE SOLUTION OF A NONLINEAR FRACTIONAL ORDINARY DIFFERENTIAL EQUATION BY DGJ METHOD [PDF]

, 2015
. Applying the new iterative method (DGJM), which have been used to handle the nonlinear models, we investigate the approximate analytical solutions for a nonlinear fractional ordinary differential equation (FODE), where the fractional derivatives are ...
Yiying Feng, Yue Hu
core  

Emergence of a Hexagonal Fe2S2 Single Layer Without a Bulk Counterpart via Phase Transformation

Advanced Functional Materials, EarlyView.
Upon annealing, single‐layer Mackinawite iron sulfide transforms into a previously unknown hexagonal Fe2S2${\rm Fe}_2{\rm S}_2$ phase with β$\beta$‐CuI structure. STM, LEED, and first‐principles calculations identify the structure and show that electronic correlations and magnetic order are important for its stability.
Affan Safeer, Wejdan Beida, Felix Oberbauer, Nicolae Atodiresei, Gustav Bihlmayer, Max Wolfertz, Chiara Schlichte, Wouter Jolie, Stefan Blügel, Jeison Fischer, Thomas Michely   +10 more
wiley   +1 more source

Simplifying coefficients in a family of nonlinear ordinary differential equations

Acta et Commentationes Universitatis Tartuensis de Mathematica, 2019
By virtue of the Faá di Bruno formula, properties of the Stirling numbers and the Bell polynomials of the second kind, the binomial inversion formula, and other techniques in combinatorial analysis, the author finds a simple, meaningful, and signicant expression for coefficients in a family of nonlinear ordinary differential equations.
openaire   +3 more sources