Results 31 to 40 of about 66,358 (264)

Complete Invariance Property with respect to Homeomorphism over Frame Multiwavelet and Super-Wavelet Spaces

open access: yesJournal of Mathematics, 2014
We discuss the complete invariance property with respect to homeomorphism (CIPH) over various sets of wavelets containing all orthonormal multiwavelets, all tight frame multiwavelets, all super-wavelets of length n, and all normalized tight super frame ...
Saurabh Chandra Maury
doaj   +1 more source

Partitions of equiangular tight frames

open access: yesLinear Algebra and its Applications, 2017
19 pages, 2 ...
James Rosado, Hieu D. Nguyen, Lei Cao
openaire   +3 more sources

Continuous Shearlet Tight Frames [PDF]

open access: yesJournal of Fourier Analysis and Applications, 2010
Based on the shearlet transform we present a general construction of continuous tight frames for L²(ℝ²) from any sufficiently smooth function with anisotropic moments. This includes for example compactly supported systems, piecewise polynomial systems, or both.
openaire   +4 more sources

An Efficient Method Based on Framelets for Solving Fractional Volterra Integral Equations

open access: yesEntropy, 2020
This paper is devoted to shedding some light on the advantages of using tight frame systems for solving some types of fractional Volterra integral equations (FVIEs) involved by the Caputo fractional order derivative.
Mutaz Mohammad   +2 more
doaj   +1 more source

Tight wavelet frames in Lebesgue and Sobolev spaces

open access: yesJournal of Function Spaces and Applications, 2004
We study tight wavelet frame systems in Lp(ℝd) and prove that such systems (under mild hypotheses) give atomic decompositions of Lp(ℝd) for 1≺p≺∞. We also characterize Lp(ℝd) and Sobolev space norms by the analysis coefficients for the frame. We consider
L. Borup, R. Gribonval, M. Nielsen
doaj   +1 more source

Finding Subsampling Index Sets for Kronecker Product of Unitary Matrices for Incoherent Tight Frames

open access: yesApplied Sciences, 2022
Frames are recognized for their importance in many fields of communications, signal processing, quantum physics, and so on. In this paper, we design an incoherent tight frame by selecting some rows of a matrix that is the Kronecker product of Fourier and
Jooeun Kwon, Nam Yul Yu
doaj   +1 more source

The wall–frame interaction effect in CLT-steel hybrid systems

open access: yesFrontiers in Built Environment, 2022
Behaviour and capacity of cross-laminated timber (CLT) infills built inside steel frames have been given increasing research attention in recent years. It is widely accepted that when the CLT wall panel is built in tight contact with the bounding steel ...
Tzanetis Vogiatzis   +2 more
doaj   +1 more source

Constructions of biangular tight frames and their relationships with equiangular tight frames

open access: yes, 2017
19 ...
Haas, John I.   +3 more
openaire   +2 more sources

Tetris Tight Frames Construction via Hadamard Matrices

open access: yesAbstract and Applied Analysis, 2014
We present a new method to construct unit norm tight frames by applying altered Hadamard matrices. Also we determine an elementary construction which can be used to produce a unit norm frame with prescribed spectrum of frame operator.
A. Abdollahi, M. Monfaredpour
doaj   +1 more source

Tight Wavelet Frame Decomposition and Its Application in Image Processing

open access: yesJournal of Mathematical and Fundamental Sciences, 2013
This paper is devoted to the formulation of a decomposition algorithm using tight wavelet frames, in a multivariate setting. We provide an alternative method for decomposing multivariate functions without accomplishing any tensor product. Furthermore, we
Mahmud Yunus, Hendra Gunawan
doaj   +1 more source

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