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pro vyhledávání: '"ELIASSON, L"'
We prove that infinitely differentiable almost reducible quasi-periodic cocycles, under a Diophantine condition on the frequency vector, are almost reducible to a sequence of real constant cocycles with a sequence of real conjugations, up to a period
Externí odkaz:
http://arxiv.org/abs/2411.07673
Akademický článek
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Autor:
Pearce, M., Eliasson, L., Iyer, N. Kumar, Kiss, M., Kushwah, R., Larsson, J., Lundman, C., Mikhalev, V., Ryde, F., Stana, T. -A., Takahashi, H., Xie, F.
Gamma-ray bursts (GRBs) are exceptionally bright electromagnetic events occurring daily on the sky. The prompt emission is dominated by X-/$\gamma$-rays. Since their discovery over 50 years ago, GRBs are primarily studied through spectral and tempora
Externí odkaz:
http://arxiv.org/abs/1808.05384
We present an abstract KAM theorem, adapted to space-multidimensional hamiltonian PDEs with smoothing non-linearities. The main novelties of this theorem are that: $\bullet$ the integrable part of the hamiltonian may contain a hyperbolic part and as
Externí odkaz:
http://arxiv.org/abs/1605.05457
In this paper we prove a KAM theorem for small-amplitude solutions of the non linear beam equation on the d-dimensional torus $$u_{tt}+\Delta^2 u+m u + \partial_u G(x,u)=0\ ,\quad t\in { \mathbb{R}} , \; x\in \ { \mathbb{T}}^d, \qquad \qquad (*) $$ w
Externí odkaz:
http://arxiv.org/abs/1604.01657
Autor:
Chriett, S., Lindqvist, A., Shcherbina, L., Edlund, A., Abels, M., Asplund, O., Martínez López, J.A., Ottosson-Laakso, E., Hatem, G., Prasad, R.B., Groop, L., Eliasson, L., Hansson, O., Wierup, N.
Publikováno v:
In Molecular and Cellular Endocrinology 5 February 2021 521
We prove an abstract KAM theorem adapted to space-multidimensional hamiltonian PDEs with regularizing nonlinearities. It applies in particular to the singular perturbation problem studied in the first part of this work.
Externí odkaz:
http://arxiv.org/abs/1502.02262
Autor:
Cowan, E., Sun, J., Hamilton, A., Ruhrmann, S., Karagiannopoulos, A., Westholm, E., Ofori, J. K., Luan, C., Zhang, E., Mulder, H., Eliasson, L.
Publikováno v:
Acta Physiologica; Aug2024, Vol. 240 Issue 8, p1-17, 17p
Autor:
Pearce, M., Eliasson, L., Kumar Iyer, N., Kiss, M., Kushwah, R., Larsson, J., Lundman, C., Mikhalev, V., Ryde, F., Stana, T.-A., Takahashi, H., Xie, F.
Publikováno v:
In Astroparticle Physics January 2019 104:54-63
Autor:
Eliasson, L. H., Kuksin, S. B.
We consider the $d$-dimensional nonlinear Schr\"odinger equation under periodic boundary conditions: $-i\dot u=-\Delta u+V(x)*u+\ep \frac{\p F}{\p \bar u}(x,u,\bar u), \quad u=u(t,x), x\in\T^d $ where $V(x)=\sum \hat V(a)e^{i\sc{a,x}}$ is an analytic
Externí odkaz:
http://arxiv.org/abs/0709.2393