Results 181 to 190 of about 667 (261)

String Invention, Viable 3-3-1 Model, Dark Matter Black Holes. [PDF]

Entropy (Basel)
Nielsen HB.
europepmc   +1 more source

On the automorphisms of the power semigroups of a numerical semigroup

Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract If H$H$ is a numerical semigroup (i.e., a cofinite subset of the non‐negative integers closed under addition), then the collection of all non‐empty subsets of H$H$ forms a semigroup P(H)$\mathcal {P}(H)$ under the sumset operation induced by addition in H$H$.
Salvatore Tringali, Kerou Wen
wiley   +1 more source

A Multi-Sensor Fusion Underwater Localization Method Based on Unscented Kalman Filter on Manifolds. [PDF]

Sensors (Basel)
Wang Y, Xie C, Liu Y, Zhu J, Qin J.
europepmc   +1 more source

Context‐free graphs and their transition groups

Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract Starting from context‐free inverse graphs, we introduce a new class of groups and study their structural properties. We establish closure properties, show that their coword problems are context‐free, analyze torsion elements, and realize them as subgroups of the asynchronous rational group.
Daniele D'Angeli, Francesco Matucci, Davide Perego, Emanuele Rodaro   +3 more
wiley   +1 more source

Symplectic Structures on the Space of Space Curves. [PDF]

J Nonlinear Sci
Bauer M, Ishida S, Michor PW.
europepmc   +1 more source

Signed Projective Cubes, a Homomorphism Point of View

Journal of Graph Theory, Volume 113, Issue 1, Page 38-56, September 2026.
ABSTRACT The (signed) projective cubes, as a special class of graphs closely related to the hypercubes, are on the crossroad of geometry, algebra, discrete mathematics and linear algebra. Defined as Cayley graphs on binary groups, they represent basic linear dependencies.
Meirun Chen, Reza Naserasr, Alessandra Sarti   +2 more
wiley   +1 more source

An Improved Initial Alignment Method Based on SE₂(3)/EKF for SINS/GNSS Integrated Navigation System with Large Misalignment Angles. [PDF]

Sensors (Basel)
Sun J, Chen Y, Cui B.
europepmc   +1 more source

ChatGPT's Potential as a Teaching Tool in Teacher Education: Enhancing Dyscalculia‐Related Competencies

European Journal of Education, Volume 61, Issue 3, September 2026.
ABSTRACT This study examines ChatGPT's potential for identifying and developing teachers' dyscalculia‐related competencies. This study applied an innovative method of teaching experiment combining ChatGPT‐supported sequential teaching sessions and Socratic questioning. The participants consisted of three teachers with varying experiences of dyscalculia
Mustafa Gök, Tuğba Yulet Yilmaz
wiley   +1 more source

Modular geodesics and wedge domains in non-compactly causal symmetric spaces. [PDF]

Ann Glob Anal Geom (Dordr)
Morinelli V, Neeb KH, Ólafsson G.
europepmc   +1 more source

Free semigroups of large critical exponent

Journal of Topology, Volume 19, Issue 3, September 2026.
Abstract For a convergence group equipped with an expanding coarse‐cocycle, we construct finitely generated free subsemigroups, which we call Bishop−−Jonessemigroups$\textit{Bishop--Jones semigroups}$, of critical exponent arbitrarily close to but strictly less than the critical exponent of the ambient group.
Aleksander Skenderi
wiley   +1 more source