Results 71 to 80 of about 11,899 (141)

Impact of Quantum Gravity on the UV Sensitivity of Extremal Black Holes

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
ABSTRACT Recent work has revealed that extremal Kerr black holes may exhibit a sensitivity to higher‐derivative corrections to Einstein's equations, displaying singularities in the tidal forces at the horizon. However, in a purely gravitational context, this “ultraviolet sensitivity” translates into a strong dependence on the Wilson coefficients in the
Francesco Del Porro, Francesco Ferrarin, Alessia Platania   +2 more
wiley   +1 more source

Riemann-Hilbert problems with singularities

, 2016
The study of analytic discs attached to a totally real submanifold M of $\mathbb C^n$ leads to the consideration of a regular Riemann-Hilbert problem of a special form.
Bertrand, Florian
core  

The short pulse equation by a Riemann–Hilbert approach

, 2016
We develop a Riemann-Hilbert approach to the inverse scattering transform method for the short pulse (SP) equation u_xt = u + 1/6 (u^3)_xx with zero boundary conditions (as |x| → ∞). This approach is directly applied to a Lax pair for the SP equation. It
Dmitry Shepelsky, Boutet de Monvel, Anne, Shepelsky, Dmitry, Zielinski, Lech, Anne Boutet de Monvel, Lech Zielinski   +5 more
core   +1 more source

On boundary-value problems for generalized analytic and harmonic functions

Доповiдi Нацiональної академiї наук України
The present paper is a natural continuation of our last articles on the Riemann, Hilbert, Dirichlet, Poincaré, and, in particular, Neumann boundary-value problems for quasiconformal, analytic, harmonic functions and the so-called A-harmonic functions ...
V.Ya. Gutlyanskiĭ, O.V. Nesmelova, V.I. Ryazanov, A.S. Yefimushkin   +3 more
doaj   +1 more source

The Field of Norms Functor and the Hilbert Symbol [PDF]

, 2010
The classical Hilbert symbol of a higher local field $F$ containing a primitive $p^M$-th root of unity $\zeta_M$ is a pairing $F^*/(F^*)^{p^M}\times K_N(F)/p^M \to \mu_{p^M}$, describing Kummer extensions of exponent $p^M$.
JENNI, RUTH,CHRISTINE, Jenni, Ruth Christine   +1 more
core  

Riemann-Hilbert approach to Gap Probabilities of Determinantal Point Processes [PDF]

, 2014
In this work, we study problems related to gap probabilities of certain universal determinantal point processes. The study of gap probabilities can be addressed in two directions: derivation of a Lax formulation of PDEs, as in the first two works ...
Girotti, Manuela
core  

The matching condition for larger size Riemann-Hilbert problems

, 2021
Molag L. The matching condition for larger size Riemann-Hilbert problems. Journal of Approximation Theory. 2021;263: 105536.In a larger size Riemann-Hilbert problem matching the local parametrices with the global parametrix is often a major technical ...
Molag, Leslie
core   +1 more source

Riemann–Hilbert approach for the combined nonlinear Schrödinger and Gerdjikov–Ivanov equation and its N-soliton solutions

, 2018
On the basis of the spectral analysis for the Lax pair, a Riemann–Hilbert problem of the combined nonlinear Schrödinger and Gerdjikov–Ivanov equation is established.
Hui Nie, Liping Lu, Xianguo Geng
core   +1 more source

Riemann-Hilbert problem associated with Angelesco systems [PDF]

, 2007
Angelesco systems of measures with Jacobi type weights are considered. For such systems, strong asymptotic development expressions for sequences of associated Hermite-Pad´e approximants are found.
Branquinho, A., Fidalgo Prieto, U., Moreno, A. Foulquié   +2 more
core  

A Riemann-Hilbert approach to Painlevé IV

, 2013
The methods of [vdP-Sa, vdP1, vdP2] are applied to the fourth Painleve equation. One obtains a Riemann-Hilbert correspondence between moduli spaces of rank two connections on P-1 and moduli spaces for the monodromy data.
Put, M. van der, van der Put, Marius, Top, Jaap, Top, J.; id_orcid, Top, J., Put, M. van der,, Top, J.,   +6 more
core   +1 more source