Results 101 to 110 of about 71,031 (218)

Multi‐Goal‐Oriented Anisotropic Error Control and Mesh Adaptivity for Time‐Dependent Convection‐Dominated Problems

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT In this work, we present an anisotropic multi‐goal error control based on the dual weighted residual (DWR) method for time‐dependent convection–diffusion–reaction (CDR) equations. Motivated by former work, we combine multiple goals to single error functionals with weights chosen as algorithmic parameters.
Markus Bause   +5 more
wiley   +1 more source

On Multiparameter Post-Quantum Fractional Quadrature Inequalities with Simulation

open access: yesFractal and Fractional
This paper introduces a comprehensive class of multiparameter post-quantum fractional quadrature inequalities, unifying classical error bounds within the setting of the post-quantum Riemann–Liouville fractional integral.
Sobia Rafeeq   +3 more
doaj   +1 more source

Anti-Gaussian quadrature formulas [PDF]

open access: yesMathematics of Computation, 1996
An anti-Gaussian quadrature formula is an ( n + 1 ) (n+1) -point formula of degree 2 n − 1 2n-1 which integrates polynomials of degree up to 2 n + 1 2n+1 with an error equal in magnitude but of opposite ...
openaire   +2 more sources

Pharmacologic MRI Brain Imaging Studies of Serotonin 5‐HT1 Receptor Agonists in Awake Mice

open access: yesPharmacology Research &Perspectives, Volume 14, Issue 3, June 2026.
ABSTRACT Serotonin (5‐hydroxytryptamine, 5‐HT) type‐1 G protein‐coupled receptors are expressed throughout the central nervous system. 5‐HT1AR activation is the putative mechanism of approved drugs for generalized anxiety disorder and major depressive disorder and is being studied in the treatment of autism and neurological disorders.
Brittany M. Brems   +5 more
wiley   +1 more source

Simpson’s quadrature formula for third differentiable and s-convex functions

open access: yesBoundary Value Problems
This study establishes Newton-type inequalities for third differentiable and s-convex functions that use the Riemann integral. New Newton-type inequalities are also introduced using a summation parameter p ≥ 1 $p\geq 1$ for various convexity cases.
Bouharket Benaissa   +2 more
doaj   +1 more source

An improved technique for determining reflection from semi-infinite atmospheres with linearly anisotropic phase functions [PDF]

open access: yes
A solution to the problem of reflection from a semi-infinite atmosphere is presented, based upon Chandrasekhar's H-function method for linearly anisotropic phase functions.
Fricke, C. L.
core   +1 more source

Numerical Model Reduction of Multi‐Scale Electrochemical Ion Transport

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 7, 15 April 2026.
ABSTRACT In this paper, we develop a Numerical Model Reduction (NMR) framework for multi‐scale modeling of electro‐chemically coupled ion transport. Upon introducing the governing equations and employing Variationally Consistent Homogenization, a two‐scale model, consisting of a macro‐scale and a sub‐scale part, is obtained.
Vinh Tu   +3 more
wiley   +1 more source

Fermat's treatise on quadrature: A new reading [PDF]

open access: yes
The Treatise on Quadrature of Fermat (c. 1659), besides containing the first known proof of the computation of the area under a higher parabola, R x+m/n dx, or under a higher hyperbola, R x-m/n dx— with the appropriate limits of integration in each case—,
Jaume Paradís   +2 more
core  

Quadrature Based Neural Network Learning of Stochastic Hamiltonian Systems

open access: yesMathematics
Hamiltonian Neural Networks (HNNs) provide structure-preserving learning of Hamiltonian systems. In this paper, we extend HNNs to structure-preserving inversion of stochastic Hamiltonian systems (SHSs) from observational data.
Xupeng Cheng, Lijin Wang, Yanzhao Cao
doaj   +1 more source

Quadrature formulas and taylor series of secant and tangent [PDF]

open access: yesИкономика и компютърни науки, 2017
Second-order quadrature formulas and their fourth-order expansions are derived from the Taylor series of the secant and tangent functions. The errors of the approximations are compared to the error of the midpoint approximation.
Yuri Dimitrov   +2 more
doaj  

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