Results 31 to 40 of about 3,729,575 (232)

A Jacobi Dual-Petrov-Galerkin Method for Solving Some Odd-Order Ordinary Differential Equations

open access: yesAbstract and Applied Analysis, 2011
A Jacobi dual-Petrov-Galerkin (JDPG) method is introduced and used for solving fully integrated reformulations of third- and fifth-order ordinary differential equations (ODEs) with constant coefficients.
E. H. Doha, A. H. Bhrawy, R. M. Hafez
doaj   +1 more source

Meromorphic solutions of three certain types of non-linear difference equations

open access: yesAIMS Mathematics, 2021
In this paper, the representations of meromorphic solutions for three types of non-linear difference equations of form $ f^{n}(z)+P_{d}(z, f) = u(z)e^{v(z)}, $ $ f^{n}(z)+P_{d}(z, f) = p_{1}e^{\lambda z}+p_{2}e^{-\lambda z} $ and $
Min Feng Chen   +2 more
doaj   +1 more source

The polynomial method strikes back: tight quantum query bounds via dual polynomials [PDF]

open access: yesElectron. Colloquium Comput. Complex., 2017
The approximate degree of a Boolean function f is the least degree of a real polynomial that approximates f pointwise to error at most 1/3. The approximate degree of f is known to be a lower bound on the quantum query complexity of f (Beals et al., FOCS ...
Mark Bun, Robin Kothari, J. Thaler
semanticscholar   +1 more source

The best constant of Sobolev inequality corresponding to anti-periodic boundary value problem

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
In this paper we establish the best constant of $\mathcal{L}^{p}$ Sobolev inequality for a function with anti-periodic boundary conditions. The best constant is expressed by $\mathcal{L}^q$ norm of $(M-1)$-th order Euler polynomial.
Jozef Kiseľák
doaj   +1 more source

A characterization of the four Chebyshev orthogonal families

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We obtain a property which characterizes the Chebyshev orthogonal polynomials of first, second, third, and fourth kind. Indeed, we prove that the four Chebyshev sequences are the unique classical orthogonal polynomial families such that their linear ...
E. Berriochoa   +2 more
doaj   +1 more source

Piecewise polynomial representations of genomic tracks. [PDF]

open access: yesPLoS ONE, 2012
Genomic data from micro-array and sequencing projects consist of associations of measured values to chromosomal coordinates. These associations can be thought of as functions in one dimension and can thus be stored, analyzed, and interpreted as piecewise-
Maxime Tarabichi   +2 more
doaj   +1 more source

A New Method to Obtain PH-Helical Curves in E^(n+1)

open access: yesJournal of New Theory, 2021
Helical curves are constructed by the property that their unit tangents make a constant angle with a chosen constant direction. There are relations between polynomial planar curves, helices and Pythagorean-hodograph or shortly PH-curves.
Çetin Camcı   +3 more
doaj   +1 more source

Grothendieck inequalities characterize converses to the polynomial method [PDF]

open access: yesQuantum
A surprising 'converse to the polynomial method' of Aaronson et al. (CCC'16) shows that any bounded quadratic polynomial can be computed exactly in expectation by a 1-query algorithm up to a universal multiplicative factor related to the famous ...
Jop Briët   +2 more
doaj   +1 more source

Analytical solution of fractional differential equations by Akbari–Ganji’s method

open access: yesPartial Differential Equations in Applied Mathematics, 2022
According to the various and extensive applications of fractional calculus in a range of fields, such as engineering, biology, image processing, material science and economics, researchers have discovered new, simpler-to-use and more accurate approaches ...
M.A. Attar   +3 more
doaj   +1 more source

Complexity of coalition structure generation [PDF]

open access: yes, 2011
We revisit the coalition structure generation problem in which the goal is to partition the players into exhaustive and disjoint coalitions so as to maximize the social welfare.
Aziz, Haris, de Keijzer, Bart
core   +4 more sources

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