2026/6/5
Hoger Ghahramani

Hoger Ghahramani

Academic rank: Professor
ORCID: Link
Education: PhD.
ResearchGate:
Faculty: Faculty of Science
ScholarId: Link
E-mail: h.ghahramani [at] uok.ac.ir
ScopusId: Link
Phone: 08733664600
H-Index:

Research

Title
Investigation matrices obtaining integrals involving polynomials and Daubechies scaling functions
Type
Presentation
Keywords
Daubechies wavelets; scaling functions; dyadic points; diagonal dominant; well-condition
Year
2017
Researchers Amjad Alipanah ، Hoger Ghahramani

Abstract

‎In this paper‎, ‎we will introduce an algorithm for obtaining integrals of the form‎ ‎\begin{equation*}‎ ‎\int_0^x t^m \varphi(t)dt,\quad m\in \mathbb{N}\cup\{0\}‎, ‎\end{equation*}‎ ‎where $\varphi$ is the scaling functions of Daubechies wavelet‎. ‎In order to obtain these integrals in dyadic points for $x$'s‎, ‎we have to solve a linear system‎. ‎We show that these matrices which obtaining by integrals involving Daubechies scaling functions and plynomials are bounded‎. ‎Also‎, ‎we will investigate‎, ‎sparseness‎, ‎well-conditioning and strictly diagonal dominant of matrices of these systems‎.