Results 11 to 20 of about 2,358,486 (249)

Oscillation Criteria for Quasilinear Equations

open access: yesCanadian Journal of Mathematics, 1974
Several authors have recently considered the problem of establishing sufficient criteria to guarantee the oscillation or non-oscillation of all solutions of a second order elliptic equation or system. We mention in particular the papers of C. A. Swanson, [15; 16], K. Kreith [9], Kreith and Travis [10], Noussair and Swanson [13], Allegretto and Swanson [
W. Allegretto
openaire   +2 more sources

New Oscillation Criteria for Delay Difference Equations

open access: yesJournal of Mathematical Analysis and Applications, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Luo, Zhiguo, Shen, Jianhua
core   +3 more sources

Oscillation criteria for fourth-order nonlinear delay dynamic equations [PDF]

open access: yesElectronic Journal of Differential Equations, 2013
We obtain criteria for the oscillation of all solutions to a fourth-order nonlinear delay dynamic equation on a time scale that is unbounded from above.
Yunsong Qi, Jinwei Yu
doaj   +2 more sources

Kamenev-type oscillation criteria for second-order quasilinear differential equations [PDF]

open access: yesElectronic Journal of Differential Equations, 2005
We obtain Kamenev-type oscillation criteria for the second-order quasilinear differential equation $$ (r(t)|y'(t)|^{alpha-1}y'(t))'+ p(t)|y(t)|^{eta-1}y(t)=0 ,.
Yong Xia, Zhiting Xu
doaj   +2 more sources

Oscillation criteria for elliptic systems [PDF]

open access: yesProceedings of the American Mathematical Society, 1971
Oscillation criteria are established for quasilinear elliptic partial differential systems of second order in unbounded domains of Euclidean space. The main departures from earlier investigations are: (1) systems of partial differential equations are considered; (2) the equations are nonlinear; (3) the matrices involved are not required to be positive ...
Allegretto, W., Swanson, C. A.
openaire   +2 more sources

Oscillation and nonoscillation criteria for delay differential equations [PDF]

open access: yesProceedings of the American Mathematical Society, 1995
Oscillation and nonoscillation criteria for the first-order delay differential equation \[ x ′
Elbert, A., Stavroulakis, I. P.
openaire   +2 more sources

Kamenev type oscillation criteria for nonlinear difference equations [PDF]

open access: yes, 2000
summary:By means of Riccati transformation techniques, we establish some new oscillation criteria for second-order nonlinear difference equation which are ...
Saker, Samir H.   +2 more
core   +1 more source

Oscillation and Nonoscillation Criteria for Four-dimensional Advanced and Delay Time-scale Systems [PDF]

open access: yes, 2020
We obtain oscillation and Non oscillation criteria for solutions to four-dimensional advanced and delay systems of first-order dynamic equations on time scales.
YENPI, GÜLŞAH   +3 more
core   +1 more source

Oscillation and non-oscillation criteria for second order linear non homogeneous functional-differential equations [PDF]

open access: yes, 2022
The Riccati equation method is used to establish oscillation and non-oscillation criteria for second order linear nonhomogeneous functional-differential equations.We show that the obtained oscillation criterion is a generalization of J. S. W.
Grigorian, G. A.
core  

Oscillation of linear retarded differential equation [PDF]

open access: yes, 1918
summary:Some Wintner and Nehari type oscillation criteria are established for the second-order linear delay differential ...
Šremr, Jiří   +3 more
core   +1 more source

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