Zobrazeno 1 - 10
of 167 276
pro vyhledávání: '"Nonexistence"'
Autor:
Alejo, Miguel Á., Corcho, Adán J.
In this work, a rigorous proof of the nonexistence of breather solutions for NLS equations is presented. By using suitable virial functionals, we are able to characterize the nonexistence of breather solutions, different from standing waves, by only
Externí odkaz:
http://arxiv.org/abs/2408.09862
Estimation algebras have been extensively studied in Euclidean space, where finite-dimensional estimation algebras form the foundation of the Kalman and Benes filters, and have contributed to the discovery of many other finite-dimensional filters. Th
Externí odkaz:
http://arxiv.org/abs/2410.08689
Autor:
Sanzeni, Giulio
Publikováno v:
J. Math. Phys. 65, 082503 (2024)
The Kerr-star spacetime is the extension over the horizons and in the negative radial region of the Kerr spacetime. Despite the presence of closed timelike curves below the inner horizon, we prove that the timelike geodesics cannot be closed in the K
Externí odkaz:
http://arxiv.org/abs/2409.09094
Autor:
Premoselli, Bruno, Vétois, Jérôme
We consider the problem of minimizing the second conformal eigenvalue of the conformal Laplacian in a conformal class of metrics with renormalized volume. We prove, in dimensions $n\in\left\{3,\dotsc,10\right\}$, that a minimizer for this problem doe
Externí odkaz:
http://arxiv.org/abs/2408.07823
Autor:
You, Song, Zhang, Jianjun
We are concerned with the following coupled Schr\"{o}dinger system with Hardy potential in the critical case \begin{equation*} \begin{cases} -\Delta u_{i}-\frac{\lambda_{i}}{|x|^2}u_{i}=|u_i|^{2^*-2}u_i+\sum_{j\neq i}^{3}\beta_{ij}|u_{j}|^{\frac{2^*}
Externí odkaz:
http://arxiv.org/abs/2407.13144
We establish the necessary and sufficient conditions for constructing gradient Einstein-type warped metrics. One of these conditions leads us to a general Lichnerowicz equation with analytic and geometric coefficients for this class of metrics on the
Externí odkaz:
http://arxiv.org/abs/2407.10337
Autor:
Pascale, Giulio
We investigate, under a volume constraint and among sets contained in a Euclidean half-space, the minimization problem of an energy functional given by the sum of a capillarity perimeter, a nonlocal repulsive term and a gravitational potential energy
Externí odkaz:
http://arxiv.org/abs/2406.02735