Results 11 to 20 of about 300,939 (289)

Wandering singularities [PDF]

open access: yesJournal of Differential Geometry, 2021
Parabolic geometric flows are smoothing for short time however, over long time, singularities are typically unavoidable, can be very nasty and may be impossible to classify. The idea of [CM6] and here is that, by bringing in the dynamical properties of the flow, we obtain also smoothing for large time for generic initial conditions. When combined with [
Colding, Tobias Holck   +1 more
openaire   +3 more sources

Singular solitons [PDF]

open access: yesPhysical Review E, 2020
to be published in Physical Review ...
Sakaguchi, Hidetsugu, Malomed, Boris A.
openaire   +3 more sources

Singular Continuous Spectrum for Singular Potentials [PDF]

open access: yesCommunications in Mathematical Physics, 2017
We prove that Schr dinger operators with meromorphic potentials $(H_{ , }u)_n=u_{n+1}+u_{n-1}+ \frac{g( +n )}{f( +n )} u_n$ have purely singular continuous spectrum on the set $\{E: L(E)
Svetlana Jitomirskaya, Fan Yang
openaire   +3 more sources

Singular statistics [PDF]

open access: yesPhysical Review E, 2001
We consider the statistical distribution of zeros of random meromorphic functions whose poles are independent random variables. It is demonstrated that correlation functions of these zeros can be computed analytically and explicit calculations are performed for the 2-point correlation function. This problem naturally appears in e.g.
Bogomolny, E., Gerland, U., Schmit, C.
openaire   +3 more sources

Quantum singularities

open access: yesPhysical Review D, 2023
Two spatial regions $B$ and $R$ are hyperentangled if the generalized entropy satisfies $S_{\text{gen}}^{B\cup R}
Raphael Bousso, Arvin Shahbazi-Moghaddam
openaire   +2 more sources

Classical and Quantum Strings in plane waves, shock waves and spacetime singularities: synthesis and new results [PDF]

open access: yes, 2003
Key issues of classical and quantum strings in gravitational plane waves, shock waves and spacetime singularities are synthetically understood. This includes the string mass and mode number excitations, energy-momentum tensor, scattering amplitudes ...
Sanchez, Norma G.
core   +3 more sources

Singular inflation [PDF]

open access: yesPhysical Review D, 2015
We prove that a homogeneous and isotropic universe containing a scalar field with a power-law potential, $V( )=A ^{n}$, with $00$ always develops a finite-time singularity at which the Hubble rate and its first derivative are finite, but its second derivative diverges.
Barrow, John D, Graham, Alexander AH
openaire   +3 more sources

Classical Collapse to Black Holes and Quantum Bounces: A Review

open access: yesUniverse, 2017
In the last four decades, different programs have been carried out aiming at understanding the final fate of gravitational collapse of massive bodies once some prescriptions for the behaviour of gravity in the strong field regime are provided.
Daniele Malafarina
doaj   +1 more source

Power Corrections in QCD: A Matter of Energy Resolution [PDF]

open access: yes, 1995
We consider power-like corrections in QCD which can be viewed as power surpressed infrared singularities. We argue that the presence of these singularities depends crucially on the energy resolution.
A. H. Mueller   +15 more
core   +3 more sources

Some Examples of Calculation of Massless and Massive Feynman Integrals

open access: yesParticles, 2021
We show some examples of calculations of massless and massive Feynman integrals.
Anatoly V. Kotikov
doaj   +1 more source

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