Results 51 to 60 of about 11,899 (141)
Oil and the stock market revisited: A mixed functional VAR approach
Quantitative Economics, Volume 17, Issue 2, Page 541-589, May 2026.This paper proposes a new mixed vector autoregression (MVAR) model to examine the relationship between aggregate time series and functional variables in a multivariate setting. The model facilitates a reexamination of the oil‐stock price nexus by estimating the effects of demand and supply shocks from the global market for crude oil on the entire ...
Hilde C. Bjørnland +2 more
wiley +1 more source
Annalen der Physik, Volume 538, Issue 4, April 2026.The Prouhet‐Thue‐Morse (PTM) sequence emerges as a unifying thread across quantum error correction, noise‐resistant memories, spin‐chain dynamics, quantum chaos, and Dirichlet links to the Riemann zeta function. Mapping PTM‐encoded logical states onto qubit and qudit architectures uncovers symmetry‐protected resilience and multifractal signatures ...
Denis Janković +3 more
wiley +1 more source
, 2021 Thesis (Ph.D.)--University of Washington, 2021Integrable systems play an important role in many research areas in Mathematics and Physics. For such systems, the Inverse Scattering Transform provides an alternate way to solve the initial-value problem in ...
Yang, Xin
core
Nuclear Physics BIn this paper, we investigate the space-time shifted nonlocal derivative nonlinear Schrödinger (DNLS) equation under nonzero boundary conditions using the Riemann–Hilbert (RH) approach for the first time.
Xin-Yu Liu, Rui Guo
doaj +1 more source
On Gauge‐Invariant Entire Function Regulators and UV Finiteness in Non Local Quantum Field Theory
Annalen der Physik, Volume 538, Issue 4, April 2026.We regulate the theory with an entire function of the covariant operator F(□/M∗2)$F(\square /M^{2}_{*})$. In the perturbative vacuum this becomes a momentum‐space factor F(−p2/M∗2)$F(-p^{2}/M^{2}_{*})$ that exponentially damps high momenta, most transparent after Wick rotation, rendering loop integrals UV finite.
J. W. Moffat, E. J. Thompson
wiley +1 more source
, 2004 We describe methods for the derivation of strong asymptotics for the denominator polynomials and the remainder of Padé approximants for a Markov function with a complex and varying weight.
Aptekarev, A.I, Van Assche, W
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Reductions of Multicomponent mKdV Equations on Symmetric Spaces of DIII-Type
Symmetry, Integrability and Geometry: Methods and Applications, 2008 New reductions for the multicomponent modified Korteweg-de Vries (MMKdV) equations on the symmetric spaces of {f DIII}-type are derived using the approach based on the reduction group introduced by A.V. Mikhailov.
Nikolay A. Kostov, Vladimir S. Gerdjikov
doaj +1 more source
Isoperimetric inequalities on slabs with applications to cubes and Gaussian slabs
Communications on Pure and Applied Mathematics, Volume 79, Issue 4, Page 1012-1072, April 2026.Abstract We study isoperimetric inequalities on “slabs”, namely weighted Riemannian manifolds obtained as the product of the uniform measure on a finite length interval with a codimension‐one base. As our two main applications, we consider the case when the base is the flat torus R2/2Z2$\mathbb {R}^2 / 2 \mathbb {Z}^2$ and the standard Gaussian measure
Emanuel Milman
wiley +1 more source
Uma generalização da Integral de Riemann [PDF]
, 1999 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Matemática e Computação Científica.Neste trabalho, estudamos uma modificação da Integral de Riemann, a Integral ...
Pereira, Maria Elita
core
Operators associated with soft and hard spectral edges from unitary ensembles. [PDF]
, 2008 Using Hankel operators and shift-invariant subspaces on Hilbert space, this paper develops the theory of integrable operators associated with soft and hard edges of eigenvalues distributions of random matrices. Such Tracy--Widom operators are realized as
Blower, Gordon
core +1 more source