نتایج جستجو برای: orbitally g
تعداد نتایج: 441977 فیلتر نتایج به سال:
We consider a nonlinear Schrödinger equation iut − h0u+ β(|u| )u = 0 , (t, x) ∈ R × R with h0 = − d dx2 + P (x) a Schrödinger operator with finitely many spectral bands. We assume the existence of an orbitally stable family of ground states. Exploiting dispersive estimates in [C2,CV] and following the argument in [C1] we prove that under appropriate hypotheses the ground states are asymptotical...
Abstract In this work we define the concepts of coupled orbit and orbitally completeness. After then, using method Bollenbacher Hicks [8], prove some Caristi type fixed point theorems in complete metric spaces for a function P : E × → E. We also give two examples that support our results.
Non-linear electrical response in a charge/orbital ordered Pr 0.63 Ca 0.37 MnO 3 crystal : the charge density wave analogy. Abstract Non-linear conduction in a charge-ordered manganese oxide Pr 0.63 Ca 0.37 MnO 3 is reported. To interpret such a feature, it is usually proposed that a breakdown of the charge or orbitally ordered state is induced by the current. The system behaves in such a way t...
The iso-spinel structural systems CuIr2S4 and MgTi2O4 exhibit phase transitions of a similar nature at ∼230 K and ∼260 K respectively, which are explained as an orbitally-induced Peierls phase transition. However, in this work, we uncover that the applied pressure has opposite pressure effects on the phase transitions in CuIr2S4 and MgTi2O4. As the pressure increases, the phase transition tempe...
The stability of the elliptic solutions to defocusing complex modified Korteweg–de Vries (cmKdV) equation is studied. Using integrability cmKdV equation, we prove spectral solutions. We show that one special linear combination first seven conserved quantities produces a Lyapunov functional, which implies are orbitally stable with respect subharmonic perturbations.
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