Results 281 to 290 of about 36,965 (299)

DIOPHANTINE APPROXIMATION IN IMAGINARY QUADRATIC FIELDS

International Journal of Number Theory, 2010
Let H3 be the upper half-space model of the three-dimensional hyperbolic space. For certain cocompact Fuchsian subgroups Γ of an extended Bianchi group Bd, the extremality of the axis of hyperbolic F ∈ Γ in H3 with respect to Γ implies its extremality with respect to Bd. This reduction is used to obtain sharp lower bounds for the Hurwitz constants and
openaire   +1 more source

Piecewise Quadratic Approximations on Triangles

ACM Transactions on Mathematical Software, 1977
M. J. D. Powell, Malcolm A. Sabin
openaire   +1 more source

Flow of nanoliquid past a vertical plate with novel quadratic thermal radiation and quadratic Boussinesq approximation: Sensitivity analysis

International Communications in Heat and Mass Transfer, 2021
B Mahanthesh, Joby Mackolil
exaly  

On the penalty approximation of quadratic programming problem

Kybernetika, 1991
Summary: An upper bound for the difference of the exact solution of the problem of minimization of quadratic functional on a subspace and its penalty approximation has been given. The paper is supplied with a numerical example.
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Approximation algorithms for indefinite quadratic programming

Mathematical Programming, 1992
Stephen A Vavasis, Vavasis Stephen A
exaly  

An adaptive quadratic approximation for structural and topology optimization

Computers and Structures, 2015
Lei Li, Kapil Khandelwal
exaly  

Asymptotic Approximations to Quadratic Irrationalities, I

American Journal of Mathematics, 1965
openaire   +1 more source

Enhanced two-point diagonal quadratic approximation methods for design optimization

Computer Methods in Applied Mechanics and Engineering, 2008
Dong-Hoon Choi
exaly  

A quadratic approximation for the optimal power flow in power distribution systems

Electric Power Systems Research, 2016
Alejandro Garces
exaly  

Quadratic Approximation

1995
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