Results 231 to 240 of about 281,620 (316)

On the Q‐Polynomial Property of Bipartite Graphs Admitting a Uniform Structure

open access: yesJournal of Combinatorial Designs, Volume 34, Issue 2, Page 69-86, February 2026.
ABSTRACT Let Γ denote a finite, connected graph with vertex set X. Fix x ∈ X and let ε ≥ 3 denote the eccentricity of x. For mutually distinct scalars { θ i * } i = 0 ε define a diagonal matrix A * = A * ( θ 0 * , θ 1 * , … , θ ε * ) ∈ Mat X ( R ) as follows: for y ∈ X we let ( A * ) y y = θ ∂ ( x , y ) *, where ∂ denotes the shortest path length ...
Blas Fernández   +3 more
wiley   +1 more source

From Triplet to Twist: The Photochemical E/Z-Isomerization Pathway of the Near-Infrared Photoswitch peri-Anthracenethioindigo. [PDF]

open access: yesAngew Chem Int Ed Engl
Hartinger M   +6 more
europepmc   +1 more source

Coordinate‐ and Spacetime‐Independent Quantum Physics

open access: yesAnnalen der Physik, Volume 538, Issue 1, January 2026.
This article studies in the framework of quantum field theory in curved spacetime, if there exists a single zero‐rank‐tensor solution of a Klein‐Gordon PDE, being valid at once for the depicted spacetimes. The answer is shown to be affirmative, even for a class of such solutions having the standard applications in particle physics. ABSTRACT The concept
Viacheslav A. Emelyanov, Daniel Robertz
wiley   +1 more source

Quantum GraviElectro Dynamics

open access: yesAnnalen der Physik, Volume 538, Issue 1, January 2026.
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley   +1 more source

Optimal Transport Autoregression to Forecast High‐Frequency Financial Data Distributions

open access: yesApplied Stochastic Models in Business and Industry, Volume 42, Issue 1, January/February 2026.
ABSTRACT In this paper, we study the properties and performance of optimal transport autoregression in modeling and forecasting high‐frequency financial data distributions. We build on a class of univariate autoregressive transport models recently proposed in the literature (Zhu and Müller) where the distributional time series dynamics is modeled ...
Paolo Pagnottoni
wiley   +1 more source

Evaluating LLMs on Kazakhstan's mathematics exam for university admission. [PDF]

open access: yesFront Artif Intell
Kadyrov S   +5 more
europepmc   +1 more source

Using Hierarchical Bayesian Analysis to Identify At‐Risk Students in Engineering Mathematics Prerequisites

open access: yesComputer Applications in Engineering Education, Volume 34, Issue 1, January 2026.
ABSTRACT Engineering educators need practical methods to identify which students are struggling and which course topics require additional instructional support. This study applies hierarchical Bayesian analysis to student performance data from the ASSISTments 2009 dataset containing 446,844 responses from 4151 students across 110 mathematical skills ...
Yiwei Sun
wiley   +1 more source

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