Results 101 to 110 of about 71,835 (281)
On Multilevel Energy‐Based Fragmentation Methods
International Journal of Quantum Chemistry, Volume 126, Issue 3, January 30, 2026.We investigate the working equations of energy‐based fragmentation methods and present ML‐SUPANOVA, a Möbius‐inversion‐based multilevel fragmentation scheme that enables adaptive, quasi‐optimal truncations to efficiently approximate Born‐Oppenheimer potentials across hierarchies of electronic‐structure methods and basis sets.
James Barker +2 more
wiley +1 more source
Frequency‐Domain Analysis of a Keldysh‐Like System
International Journal of Robust and Nonlinear Control, Volume 36, Issue 2, Page 671-682, 25 January 2026.ABSTRACT Complex dynamics of the system, revealing flutter and first presented by M. Keldysh, is analyzed in the paper in the frequency domain, through the describing function method. Motivated by this analysis, a system with similar behavior, but suitable for the exact frequency‐domain analysis through the locus of a perturbed relay system (LPRS ...
I. M. Boiko +3 more
wiley +1 more source
Quadrature formulas with variable nodes and Jackson–Nikolskii inequalities for rational functions [PDF]
, 2018 Petr Chunaev, V. I. Danchenko
openalex +1 more source
Anti-Gaussian quadrature formulas [PDF]
Mathematics 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
An Inverse Source Technique as a Preliminary Tool to Localize Persons in Indoor Spaces
Mathematical Methods in the Applied Sciences, Volume 49, Issue 1, Page 304-320, 15 January 2026.ABSTRACT This paper considers an inverse heat source localization problem with applications to indoor person localization from temperature measurements. In particular, this inverse problem consists in the reconstruction of the intensity and position of heat sources from observed temperature data.
Simonetta Boria +5 more
wiley +1 more source
Simpson’s quadrature formula for third differentiable and s-convex functions
Boundary Value ProblemsThis 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
International Journal for Numerical Methods in Engineering, Volume 127, Issue 1, 15 January 2026.ABSTRACT The multiresolution finite wavelet domain method has been meticulously studied in numerous wave propagation simulations, showing excellent convergence properties and very fast computing times. The multiresolution procedure always starts with the coarse solution, and then finer solutions can be superimposed on the coarse solution until ...
Dimitris Dimitriou +2 more
wiley +1 more source
Quadrature formulas and taylor series of secant and tangent [PDF]
Икономика 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
A new Ostrowski type inequality for functions whose first derivatives are of bounded variation
Moroccan Journal of Pure and Applied Analysis, 2016 In this paper, we establish some new Ostrowski type integral inequalities for mappings whose first derivatives are of bounded variation and quadrature formula is ...
Budak Hüseyin, Sarikaya Mehmet Zeki
doaj +1 more source