Results 21 to 30 of about 95 (91)
Dynamically Consistent Analysis of Realized Covariations in Term Structure Models
Mathematical Finance, Volume 36, Issue 1, Page 203-236, January 2026.ABSTRACT In this article, we show how to analyze the covariation of bond prices nonparametrically and robustly, staying consistent with a general no‐arbitrage setting. This is, in particular, motivated by the problem of identifying the number of statistically relevant factors in the bond market under minimal conditions.
Dennis Schroers
wiley +1 more source
Average‐Case Matrix Discrepancy: Satisfiability Bounds
Random Structures &Algorithms, Volume 67, Issue 3, October 2025.ABSTRACT Given a sequence of d×d$$ d\times d $$ symmetric matrices {Wi}i=1n$$ {\left\{{\mathbf{W}}_i\right\}}_{i=1}^n $$, and a margin Δ>0$$ \Delta >0 $$, we investigate whether it is possible to find signs (ε1,…,εn)∈{±1}n$$ \left({\varepsilon}_1,\dots, {\varepsilon}_n\right)\in {\left\{\pm 1\right\}}^n $$ such that the operator norm of the signed sum ...
Antoine Maillard
wiley +1 more source
Linking Bipartiteness and Inversion in Algebra via Graph‐Theoretic Methods and Simulink
Complexity, Volume 2025, Issue 1, 2025.Research for decades has concentrated on graphs of algebraic structures, which integrate algebra and combinatorics in an innovative way. The goal of this study is to characterize specific aspects of bipartite and inverse graphs that are associated with specific algebraic structures, such as weak inverse property quasigroups and their isotopes ...
Mohammad Mazyad Hazzazi +6 more
wiley +1 more source
A New Image Encryption Method Using an Optimized Smart Codebook
Human Behavior and Emerging Technologies, Volume 2025, Issue 1, 2025.Information attacks have increased worldwide as more information is available in digital form. Image encryption is essential to prevent attackers from unauthorized access to confidential images. In this paper, we introduce a novel image encryption method called the smart codebook, which combines an intelligent codebook technique with the RSA (Rivest ...
Rami Sihwail +2 more
wiley +1 more source
Harnessing quantum power: Revolutionizing materials design through advanced quantum computation
Materials Genome Engineering Advances, Volume 2, Issue 4, December 2024.The robust framework for advanced materials design via the quantum machine learning is summarized in this review, emphasizing the transformative potential of quantum technologies in revolutionizing materials innovation. Abstract The design of advanced materials for applications in areas of photovoltaics, energy storage, and structural engineering has ...
Zikang Guo +4 more
wiley +1 more source
Medical Physics, Volume 51, Issue 5, Page 3597-3603, May 2024.Abstract Background The radiotherapy process relies on several metrics in determining a notion of “distance” from one three‐dimensional region‐of‐interest (ROI) to another. The majority are symmetric (or commutative) and do not contain information pertaining to directionality.
James Stewart +10 more
wiley +1 more source
Soft Riemann‐Hilbert problems and planar orthogonal polynomials
Communications on Pure and Applied Mathematics, Volume 77, Issue 4, Page 2413-2451, April 2024.Abstract Riemann‐Hilbert problems are jump problems for holomorphic functions along given interfaces. They arise in various contexts, for example, in the asymptotic study of certain nonlinear partial differential equations and in the asymptotic analysis of orthogonal polynomials. Matrix‐valued Riemann‐Hilbert problems were considered by Deift et al. in
Haakan Hedenmalm
wiley +1 more source
Sig‐Wasserstein GANs for conditional time series generation
Mathematical Finance, Volume 34, Issue 2, Page 622-670, April 2024.Abstract Generative adversarial networks (GANs) have been extremely successful in generating samples, from seemingly high‐dimensional probability measures. However, these methods struggle to capture the temporal dependence of joint probability distributions induced by time‐series data.
Shujian Liao +5 more
wiley +1 more source
Spin 1/2 one‐ and two‐particle systems in physical space without eigen‐algebra or tensor product
Mathematical Methods in the Applied Sciences, Volume 47, Issue 3, Page 1457-1470, February 2024.Under the spin–position decoupling approximation, a vector with a phase in 3D orientation space endowed with geometric algebra substitutes the vector–matrix spin model built on the Pauli spin operator. The standard quantum operator‐state spin formalism is replaced with vectors transforming by proper and improper rotations in the same 3D space ...
Sokol Andoni
wiley +1 more source
On Explaining Quantum Correlations: Causal vs. Non-Causal. [PDF]
Entropy (Basel), 2021 Felline L.
europepmc +1 more source