Results 11 to 20 of about 954 (58)
, 2013 The problem of constructing internally rotating solitons of fixed angular frequency $\omega$ in the Faddeev-Skyrme model is reformulated as a variational problem for an energy-like functional, called pseudoenergy, which depends parametrically on $\omega$.
Harland, Derek +3 more
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Orbital stability of standing waves for supercritical NLS with potential on graphs
, 2018 In this paper we study the existence and stability of normalized standing waves for the nonlinear Schr\"odinger equation on a general starlike graph with potentials.
Ardila, Alex H.
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Fixed Points of Integral Type Contractions in Uniform Spaces with a Graph [PDF]
, 2013 In this paper, we discuss the existence of fixed points for integral type contractions in uniform spaces endowed with both a graph and an $E$-distance. We also give two sufficient conditions under which the fixed point is unique.
Aghanians, Aris, Nourouzi, Kourosh
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One-pion transitions between heavy baryons in the constituent quark model
, 1999 Single pion transitions of S wave to S wave, P wave to S wave and P wave to P wave heavy baryons are analyzed in the framework of the Heavy Quark Symmetry limit (HQS).
A.F. Falk +35 more
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Superorbital modulation at GeV energies in the gamma-ray binary LS I +61 303
, 2017 We report the results from our analysis of 8 years of the data for the gamma-ray binary LS I +61 303, obtained with the Large Area Telescope onboard the Fermi Gamma-Ray Space Telescope.
Takata, Jumpei +2 more
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, 1999 Consider a countable group Gamma acting ergodically by measure preserving transformations on a probability space (X,mu), and let R_Gamma be the corresponding orbit equivalence relation on X.
Furman, Alex
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Vinh University Journal of Sciencen this paper we prove some fixed point theorems for map- pings satisfying an implicit contractive conditions in metric spaces. Our re-sults improve and extend some results in the literature [6]. Some examplesare also given to illustrate our findings. Keywords: Boundedly compact spaces; Fixed points; Metric spaces; T-orbitally compact spaces.
openaire +2 more sources
On the nonlinear stability of higher-dimensional triaxial Bianchi IX black holes
, 2005 In this paper, we prove that the 5-dimensional Schwarzschild-Tangherlini solution of the Einstein vacuum equations is orbitally stable (in the fully non-linear theory) with respect to vacuum perturbations of initial data preserving triaxial Bianchi IX ...
Dafermos, Mihalis, Holzegel, Gustav
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Star-shaped distributions and their generalizations
, 2006 Elliptically contoured distributions can be considered to be the distributions for which the contours of the density functions are proportional ellipsoids.
Akimichi Takemura +32 more
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Solitons in gauge theories: existence and dependence on the charge
, 2013 In this paper we review recent results on the existence of non-topological solitons in classical relativistic nonlinear field theories. We follow the Coleman approach, which is based on the existence of two conservation laws, energy and charge.
Bonanno, Claudio
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