Results 21 to 30 of about 181,063 (291)

Oscillation criteria for linear difference equations with several variable delays [PDF]

Opuscula Mathematica, 2021
We obtain new sufficient criteria for the oscillation of all solutions of linear delay difference equations with several (variable) finite delays. Our results relax numerous well-known limes inferior-type oscillation criteria from the literature by ...
Vasileios Benekas, Ábel Garab, Ardak Kashkynbayev, Ioannis P. Stavroulakis   +3 more
doaj   +1 more source

New Oscillation Criteria for Delay Difference Equations

Journal of Mathematical Analysis and Applications, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Luo, Zhiguo, Shen, Jianhua
openaire   +2 more sources

Oscillation Criteria in Higher Order Neutral Equations

Journal of Mathematical Analysis and Applications, 1994
The paper deals with oscillatory criteria for the solutions of a scalar higher order neutral equation of mixed type (with delayed and advanced arguments), with constant coefficients. As a main result, the classical characterization of oscillations by the characteristic equation is extended to such equations.
Bilchev, S. J., Grammatikopoulos, M. K., Stavroulakis, I. P.   +2 more
openaire   +2 more sources

Effective Prüfer angles and relative oscillation criteria

Journal of Differential Equations, 2008
22 ...
Krüger, Helge, Teschl, Gerald
openaire   +4 more sources

New Monotonic Properties of Positive Solutions of Higher-Order Delay Differential Equations and Their Applications

Mathematics, 2022
In this work, new criteria were established for testing the oscillatory behavior of solutions of a class of even-order delay differential equations. We follow an approach that depends on obtaining new monotonic properties for the decreasing positive ...
Ali Muhib, Osama Moaaz, Clemente Cesarano, Shami A. M. Alsallami, Sayed Abdel-Khalek, Abd Elmotaleb A. M. A. Elamin   +5 more
doaj   +1 more source

Limits on Neutrino Oscillations from the CHOOZ Experiment [PDF]

, 1999
We present new results based on the entire CHOOZ data sample. We find (at 90% confidence level) no evidence for neutrino oscillations in the anti_nue disappearance mode, for the parameter region given by approximately Delta m**2 > 7 x 10**-4 eV^2 for ...
A. Baldini, A. Etenko, A. Martemyanov, A. Sabelnikov, B. Dieterle, B. Lefièvre, C. Bemporad, C.E. Lane, D. Kryn, D. Nicolò, D. Veron, Declais, E. Caffau, F. Cei, Feldman, Fukuda, G. Giannini, G. Pieri, G. Santin, H. de Kerret, H. Sobel, I. Machulin, J. George, J. Steele, L. Mikaelyan, L. Price, M. Apollonio, M. Grassi, M. Laiman, M. Obolensky, M. Skorokhvatov, R. Pazzi, R. Reeder, R. Steinberg, S. Riley, S. Sukhotin, S. Tomshaw, V. Martemyanov, V. Vyrodov, W. Kropp, Y. Déclais, Y. Kozlov   +41 more
core   +4 more sources

Oscillation criteria for third-order functional half-linear dynamic equations

Advances in Difference Equations, 2017
In this paper, we study the third-order functional dynamic equation { r 2 ( t ) ϕ α 2 ( [ r 1 ( t ) ϕ α 1 ( x Δ ( t ) ) ] Δ ) } Δ + q ( t ) ϕ α ( x ( g ( t ) ) ) = 0 , $$ \bigl\{ r_{2}(t)\phi_{\alpha_{2}} \bigl( \bigl[ r_{1}(t) \phi _{\alpha _{1}} \bigl(
Taher S Hassan, Ravi P Agarwal, Wael W Mohammed   +2 more
doaj   +1 more source

New Oscillation Theorems for Second-Order Differential Equations with Canonical and Non-Canonical Operator via Riccati Transformation

Mathematics, 2021
In this work, we prove some new oscillation theorems for second-order neutral delay differential equations of the form (a(ξ)((v(ξ)+b(ξ)v(ϑ(ξ)))′))′+c(ξ)G1(v(κ(ξ)))+d(ξ)G2(v(ς(ξ)))=0 under canonical and non-canonical operators, that is, ∫ξ0∞dξa(ξ)=∞ and ...
Shyam Sundar Santra, Abhay Kumar Sethi, Osama Moaaz, Khaled Mohamed Khedher, Shao-Wen Yao   +4 more
doaj   +1 more source

ICANOE - Imaging and Calorimetric Neutrino Oscillation Experiment [PDF]

, 2000
The main scientific goal of the ICANOE detector is the one of elucidating in a comprehensive way the pattern of neutrino masses and mixings, following the SuperKamiokande results and the observed solar neutrinos deficit.
Collaboration, ICARUS, Collaboration, NOE, Rubbia, A.   +2 more
core   +3 more sources

Oscillation criteria in delay equations

Journal of Differential Equations, 1984
Dans ce travail les auteurs donnent une méthode pour déterminer les critères d'oscillation des équations à retards aussi bien dans le cas autonome que dans le cas non autonome.
Arino, O, Györi, I, Jawhari, A
openaire   +1 more source