Results 21 to 30 of about 180,670 (290)

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

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 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

Oscillation criteria of certain fractional partial differential equations

Advances in Difference Equations, 2019
In this article, we regard the generalized Riccati transformation and Riemann–Liouville fractional derivatives as the principal instrument. In the proof, we take advantage of the fractional derivatives technique with the addition of interval segmentation
Di Xu, Fanwei Meng
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

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

Oscillation criteria for differential equations with several retarded arguments

, 2014
Consider the first-order linear differential equation with several retarded arguments $$ x^{\prime}(t)+\sum\limits_{i=1}^{m}p_{i}(t)x(\tau_{i}(t))=0,\;\;\;t\geq t_{0}, $$ where the functions $p_{i},\tau_{i}\in C([t_{0,}\infty),\mathbb{R}^{+}),$ for every
Infante, Gennaro, Koplatadze, Roman, Stavroulakis, Ioannis P.   +2 more
core   +1 more source

A Measurement of Atmospheric Neutrino Flux Consistent with Tau Neutrino Appearance [PDF]

, 2006
A search for the appearance of tau neutrinos from \mutau oscillations in the atmospheric neutrinos has been performed using 1489.2 days of atmospheric neutrino data from the Super-Kamiokande-I experiment. A best fit tau neutrino appearance signal of 138 $
A. Habig, A. K. Ichikawa, A. Minamino, A. Sarrat, A. T. Suzuki, A. Takeda, C. Ishihara, C. K. Jung, C. McGrew, C. Mitsuda, C. Regis, C. Saji, C. W. Walter, C. Yanagisawa, D. Casper, D. Kielczewska, D. W. Liu, E. Guillian, E. Kearns, F. Dufour, G. Mitsuka, G. W. Sullivan, H. G. Berns, H. Ishii, H. Ishino, H. K. Seo, H. Maesaka, H. Nishino, H. Ogawa, H. Okazawa, H. Sato, H. W. Sobel, I. Higuchi, I. Kato, I. T. Lim, J. E. Hill, J. G. Learned, J. Kameda, J. L. Raaf, J. L. Stone, J. P. Cravens, J. S. Jang, J. Y. Kim, J. Yoo, J. Zalipska, K. Abe, K. Inoue, K. Ishihara, K. K. Shiraishi, K. Kaneyuki, K. Kobayashi, K. Nakamura, K. Nishijima, K. Nishikawa, K. Nitta, K. Okumura, K. S. Ganezer, K. Scholberg, K. Ueshima, K. Washburn, L. R. Sulak, M. Ambrosio, M. B. Smy, M. D. Messier, M. Goldhaber, M. Hasegawa, M. Ishitsuka, M. Koshiba, M. Litos, M. Malek, M. Miura, M. Nakahata, M. R. Vagins, M. Sakuda, M. Shiozawa, M. Sugihara, M. Yokoyama, M. Yoshida, N. Tamura, N. Tanimoto, R. Gran, R. J. Wilkes, R. Svoboda, R. Terri, R. W. Ellsworth, R. Wendell, S. B. Kim, S. Clark, S. Dazeley, S. Desai, S. Hatakeyama, S. Likhoded, S. Matsuno, S. Mine, S. Moriyama, S. Nakayama, S. Tasaka, S. Yamamoto, T. Hasegawa, T. Iida, T. Ishida, T. Ishii, T. Ishizuka, T. Iwashita, T. J. Haines, T. Kajita, T. Kato, T. Kobayashi, T. Koike, T. Nakadaira, T. Nakaya, T. Sasaki, T. Sato, W. E. Keig, W. R. Kropp, W. Wang, Y. Choi, Y. Fukuda, Y. Gando, Y. Hayato, Y. Itow, Y. Koshio, Y. Kuno, Y. Obayashi, Y. Oyama, Y. Suzuki, Y. Takenaga, Y. Takeuchi, Y. Totsuka, Y. Watanabe   +129 more
core   +2 more sources