Results 21 to 30 of about 363 (235)

HOW TO REFINE POLYNOMIAL FUNCTIONS [PDF]

open access: yesInternational Journal of Wavelets, Multiresolution and Information Processing, 2012
Research on refinable functions in wavelet theory is mostly focused to localized functions. However it is known, that polynomial functions are refinable, too. In our paper we investigate on conversions between refinement masks and polynomials and their uniqueness.
openaire   +3 more sources

Refinable functions for dilation families [PDF]

open access: yesAdvances in Computational Mathematics, 2011
Advances in Computational Mathematics, 36 (3)
openaire   +5 more sources

Some Bivariate Smooth Compactly Supported Tight Framelets with Three Generators

open access: yesAbstract and Applied Analysis, 2013
For any dilation matrix with integer entries and , we construct a family of smooth compactly supported tight wavelet frames with three generators in .
A. San Antolín, R. A. Zalik
doaj   +1 more source

Orthogonality criteria for compactly supported refinable functions and refinable function vectors

open access: yesThe Journal of Fourier Analysis and Applications, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lagarias, Jeffrey C., Wang, Yang
openaire   +2 more sources

Multivariate Refinable Interpolating Functions

open access: yesApplied and Computational Harmonic Analysis, 1999
The author gives an algorithm for the construction of refinable interpolating functions for an arbitrary dilation matrix. This construction of refinable interpolating functions is an intermediate step in the construction of orthonormal wavelet bases and is of interest in its own right.
openaire   +2 more sources

Refinable Functions with PV Dilations [PDF]

open access: yes, 2017
A PV number is an algebraic integer $α$ of degree $d \geq 2$ all of whose Galois conjugates other than itself have modulus less than $1$. Erdös \cite{erdos} proved that the Fourier transform $\widehat φ,$ of a nonzero compactly supported scalar valued function satisfying the refinement equation $φ(x) = \frac{|α|}{2}φ(αx) + \frac{|α|}{2}φ(αx-1)$ with ...
openaire   +2 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Regularity of anisotropic refinable functions [PDF]

open access: yesApplied and Computational Harmonic Analysis, 2019
This paper presents a detailed regularity analysis of anisotropic wavelet frames and subdivision. In the univariate setting, the smoothness of wavelet frames and subdivision is well understood by means of the matrix approach. In the multivariate setting, this approach has been extended only to the special case of isotropic refinement with the dilation ...
Charina, Maria, Protasov, Vladimir
openaire   +4 more sources

A PRSZT Registry Analysis of Prognostic Factors Influencing Survival and Relapse Rates After Second Allogeneic Hematopoietic Stem Cell Transplantation in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT A second allogeneic (allo‐)hematopoietic stem cell transplantation (HSCT2) is a potential curative option for pediatric patients with acute lymphoblastic leukemia (ALL) following relapse after first allogeneic transplantation (HSCT1), but its efficacy is limited by high relapse rates and transplant‐related toxicity in highly pretreated ...
Ava Momm   +10 more
wiley   +1 more source

Proximately chain refinable functions

open access: yesHacettepe Journal of Mathematics and Statistics, 2018
Summary: We define proximately chain refinable functions as a generalization of refinable maps and investigate some of their properties for Hausdorff paracompact spaces. We prove that the proximate fixed point property is preserved by proximate near homeomorphisms in paracompact Hausdorff spaces. This generalizes a previous result of \textit{E.
BUKLLA, Abdulla, MARKOSKİ, Gjorgji
openaire   +3 more sources

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