Results 251 to 260 of about 1,944,105 (329)

Bidiagonal Decompositions and Accurate Computations for the Ballot Table and the Fibonacci Matrix

Numerical Linear Algebra with Applications, Volume 33, Issue 1, February 2026.
ABSTRACT Riordan arrays include many important examples of matrices. Here we consider the ballot table and the Fibonacci matrix. For finite truncations of these Riordan arrays, we obtain bidiagonal decompositions. Using them, algorithms to solve key linear algebra problems for ballot tables and Fibonacci matrices with high relative accuracy are derived.
Jorge Ballarín, Jorge Delgado, J. M. Peña   +2 more
wiley   +1 more source

Tsirelson bounds for quantum correlations with indefinite causal order. [PDF]

Nat Commun
Liu Z, Chiribella G.
europepmc   +1 more source

Shrouded Wind and Water Turbine Analytical Model Extensions for Tip Gaps, Center Bodies, and Flow Blockage

Wind Energy, Volume 29, Issue 2, February 2026.
ABSTRACT This paper provides improvements to a previously presented simple, accurate, lower order analytical model for predicting the performance of horizontal‐axis shrouded turbines for a wide range of shroud airfoil shapes varying in length, camber, and thickness. The new, extended model incorporates explicit quantitative predictions of those effects
M. J. Werle
wiley   +1 more source

Quantitative description of internal 3D structure of a geological sample using algebraic topology methods. [PDF]

Sci Rep
Chernyavskiy M, Timoshenko V, Morkovkin A, Manukovskaya D, Zernyuk A, Grishin P, Kalashnikov A, Grachev E.   +7 more
europepmc   +1 more source

BOOK REVIEWS: Problems of Quantitative Methods. Algebra, Trigonometry, Analytical Geometry and Mathematical Analysis (Part I) - Probleme de metode cantitative. Algebra, trigonometrie, geometrie analitica si analiza matematica (Partea I), Sorin BERBENTE, Corneliu BERBENTE Published by Editura Universitatii Romano-Britanice, Seria “Business”, Bucuresti, 2006, ISBN (10) 973-87669-1-5/ ISBN (13) 978-973-87669-1-4, ISBN (10) 973-87669-2-3/ ISBN (13) 978-973-87669-2-1

, 2014
Irina-Carmen ANDREI
openalex   +1 more source

Coordinate‐ and Spacetime‐Independent Quantum Physics

Annalen 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

Optimizing noise control in flexible shells with bridging membrane discs variations. [PDF]

PLoS One
Alahmadi H, Afzal M, Alkuhayli N.
europepmc   +1 more source

NONCOMMUTATIVE ALGEBRAIC GEOMETRY II

, 1998
Olav Arnfinn Laudal
openalex   +1 more source

VLWE: Variety-based Learning with Errors for Vector Encryption through Algebraic Geometry [PDF]

Dongfang Zhao
openalex   +1 more source

Quantum GraviElectro Dynamics

Annalen 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