Results 231 to 240 of about 32,711 (308)
On the Disentanglement of an Economic Union
Journal of Regional Science, Volume 66, Issue 1, Page 244-269, January 2026.ABSTRACT We study how the unilateral withdrawal of a region from an economic union affects the spatial distribution of economic activity and social welfare. We explore a three‐region economic geography model under the assumption that this withdrawal can be expressed as a higher transportation cost between the leaving party and the remaining union ...
Jorge Saraiva +2 more
wiley +1 more source
SNMFSMMA: using symmetric nonnegative matrix factorization and Kronecker regularized least squares to predict potential small molecule-microRNA association. [PDF]
RNA Biol, 2020 Zhao Y, Chen X, Yin J, Qu J.
europepmc +1 more source
Partial Observability of Implied Volatility Matrices: Identification and Covolatilities Filtering
Mathematical Finance, Volume 36, Issue 1, Page 48-66, January 2026.ABSTRACT Whereas data on implied volatilities are available for a large number of assets, this is less frequently the case of implied covolatilities. We introduce a new approach based on static and dynamic Wishart models to solve this problem of missing data.
Christian Gouriéroux, Yang Lu
wiley +1 more source
Blind source separation for groundwater pressure analysis based on nonnegative matrix factorization [PDF]
, 2014 Boian S. Alexandrov +1 more
openalex +1 more source
Studies in Applied Mathematics, Volume 156, Issue 1, January 2026.ABSTRACT We study asymptotic dynamics of Kuramoto oscillators with inertia and frustration using the classical perturbation theory of ordinary differential equation systems. Frustration also known as the phase‐lag poses challenges for the mathematical analysis of asymptotic dynamics due to the breakdown of total phase conservation and the gradient ...
Hangjun Cho +2 more
wiley +1 more source
A State-Space Approach to Dynamic Nonnegative Matrix Factorization [PDF]
, 2014 Nasser Mohammadiha +3 more
openalex +1 more source
Asymptotic Profiles and Disease Prevalence at the Steady State for an SIS Patch Model
Studies in Applied Mathematics, Volume 156, Issue 1, January 2026.ABSTRACT Infected individuals often display mobility patterns that differ significantly from those of healthy individuals—traveling less frequently, covering shorter distances, visiting fewer destinations, and altering their timing and modes of movement.
Daozhou Gao, Xin Li
wiley +1 more source
Matrix Factorization: Nonnegativity, Sparsity and Independence
, 2014 Vamsi K. Potluru
openalex +1 more source
Splitting the difference: Computations of the Reynolds operator in classical invariant theory
Bulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.Abstract If G$G$ is a linearly reductive group acting rationally on a polynomial ring S$S$, then the inclusion SG↪S$S^{G} \hookrightarrow S$ possesses a unique G$G$‐equivariant splitting, called the Reynolds operator. We describe algorithms for computing the Reynolds operator for the classical actions as in Weyl's book.
Aryaman Maithani
wiley +1 more source