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Communications
in the
Analytic Theory of Continued Fractions

 
 
General Information Past Volumes

Published each Summer by Mesa State College, Grand Junction, CO, 81502, USA. 

Previously published by the University of Southern Colorado with former managing editor John Gill (University of Southern Colorado and European editor John H. McCabe (University of St. Andrews). 

Submission Deadlines for Volume XI:

Research Notes and Expository Papers -- July 1, 2003

Abstracts, Progress Reports, Book Reviews, etc. -- July 1, 2003

Editors:

Catherine Bonan-Hamada 
Department of Computer Science, Mathematics and Statistic
Mesa State College
Grand Junction, CO 81502-2647 
USA 
FAX: (970) 248-1324 
Ph. (970) 248-1838 
E-mail: cbonan@mesastate.edu
Philip E. Gustafson 
Department of Computer Science, Mathematics and Statistics
Mesa State College
Grand Junction, CO 81502-2647 
USA 
FAX: (970) 248-1324 
Ph. (970) 248-1176 
E-mail: pgustafs@mesastate.edu
Lyle Cochran 
Department of Mathematics and Computer Science
Whitworth University
Spokane, WA 99251 
USA 
FAX: (509) 777-3781 
Ph. (509) 777-4487 
E-mail: LCOCHRAN@WHITWORTH.EDU

Description & Information for Authors

Communications provides an international forum for reporting and discussing developments in the analytic theory of continued fractions and closely related topics.  Pade approximants, orthogonal polynomials, recurrence relations, moments, linear fractional transformations, and generalizations of classical continued fractions are but a few examples of associated research areas within the scope of the publication.  Abstracts, reviews, and papers that show connections with continued fraction theory are especially welcome, although this not a requirement for acceptance and publication. 

The goals of Communications are twofold: first, to provide a convenient and central exchange of information concerning specific research results, both current and past, in those subjects covered by the journal; second , to provide overviews of pertinent areas of activity through expository articles describing the evolution of theory and/or its implementation in applications. 

Copies of the journal will be made available to those participating in the exchange and to several research centers. 

An important objective of Communications is to establish a comprehensive collection of abstracts and reviews of published (even unpublished) works that lie within the scope of the journal.  Investigators are urged to submit abstracts of their research papers, as well as selected reviews of the works of others.  Information on preparation of abstracts/reviews will be found in sections and format example page on this web site.  There is no limit on the number of abstracts/reviews an author may submit.  In the case of multiple authorship the first abstract/review of a paper received will be the one published.  Investigators who wish to inform others of ongoing work may submit progress reports. 

Investigators having a good grasp of historical development within their areas of research or are familiar with external applications of the analytic theory of continued fractions or closely related topics are invited to submit expository articles.  Short research manuscripts and articles suitable for undergraduate/graduate instruction are welcome, as well as reviews of books and significant papers that lie within the scope of the journal.  In addition, the editors encourage the submission of historical notes relating to pertinent topics. 

SECTIONS 

Expository Papers.  This section contains original articles providing overviews of research areas within the scope of the journal, or discussing historical evolution in these areas. Manuscripts describing connections with other branches of mathematics or applications in external disciplines are also welcome. Prospective authors are asked to communicate with one of the editors before beginning the preparation of an article. All submissions will be reviewed by the editors for appropriateness of topic. However, they will not be refereed in the traditional sense, and therefore it is essential that authors take ultimate responsibility for the integrity, accuracy and originality of the material they submit. Papers appearing in this section should not appear elsewhere.

Research Notes.  This section contains original commentaries and brief research reports (which should include proofs). Articles must lie within the subject scope of the publication and should, in general, be short. Research Notes include, but are not restricted to, commentaries on specific topics of investigation, derivation of new theory or alternate proofs of existing theory, examples, counterexamples, and conjectures. Diversity of thought beyond that normally found in a traditional research journal is encouraged. For example, discussions of tentative conclusions reached through deductive arguments involving clearly stated and reasonable conjectures are welcome. Short papers that offer novel perspectives and/or directions are appropriate, as well. All submissions will be reviewed by the editors for appropriateness of topic. However, they will not be refereed in the traditional sense, and therefore it is essential that authors take ultimate responsibility for the integrity, accuracy and originality of the material they submit. Papers appearing in this section should not appear elsewhere.

Historical Notes/Classroom Notes.   These sections are devoted to historical information or material that would enhance undergraduate or graduate teaching while promoting the topics represented by this journal. 

Abstracts/Progress Reports/Reviews.  This section contains abstracts and reviews, generally not longer than two pages (as described below), of papers that appear (or will appear) in other journals.  Abstracts (or summaries), no more than five pages long, of PhD theses and unpublished papers are also welcome, as are short progress reports of current research.  Publication information on complete manuscripts must be provided, either at the time of submission, or later, when known.  Authors should not submit abstracts appearing in other journals to which copyrights have been assigned.  In these instances, new abstracts that do not violate copyright agreements should be written.  In general, it is appropriate to compose abstracts that do not exceed one tenth the length of the article, and contain no proofs.  Lengthier abstracts are welcome if there are no copyright infringements. 

Book Descriptions and Reviews, Bibliographies, and Announcements.  Included in this section are book reviews or descriptions, bibliographies, abstract updates, conference announcements, personal information, letters to the editor, errata, and other pertinent communications. 

Expository Papers and Research Notes will be made available to Mathematical Reviews

All material submitted to Communications must be in English and in camera ready form, typewritten or computer printed, with the total printed area on each page measuring no more than 6 inches by 9.5 inches.  Pages will be reduced to approximately seventy percent of original size during the photocopying process; consequently, the verbal portion of the original manuscript should be in standard size font.  Figures should be printed or drawn in high contrast black ink.  An example demonstrating the recommended format for submissions is given below (click here to see this format). 

Authors should mail two copies of all submitted articles to one of the three editors, and should indicate to which sections they are directed.  Please mail paper manuscripts rather than submitting your material electronically.  Research Notes and Expository papers should be submitted by March 15th, and Abstracts, Progress Reports, Book Reviews, etc. by April 15th, in order to insure prompt publication. 

FORMAT EXAMPLE PAGE 


ABSTRACT 1

Continued Fractions in Numerical Analysis

Applied Numerical Mathematics, 4 (1988) 143-230.  2

William B. Jones & W.J. Thron, Department of Mathematics, University of 
Colorado, Boulder, CO  80309-0426, USA

Keywords:  Continued fractions, Pade approximants, etc.  3
 

        (body of the ABSTRACT, REVIEW, PROGESS REPORT, EXPOSITORY 
PAPER, or MATHEMATICAL RESEARCH NOTE). 

                                                                J. Smith 4

References 5

[1] G. Blanch, Numerical Evaluation of Continued Fractions, SIAM Rev. 7 
(1964) 383-421. 
(etc.) 

Explanations: 1 -or REVIEW or PROGRESS REPORT.  Use heading only in these cases. 2 - Provide this information for abstracts only.  3- Provide this information for all submissions over two pages long. 4 - Enter reviewer's name if the submission is a REVIEW.  5- This is optional on ABSTRACTS, REVIEWS, and PROGRESS REPORTS, but must be included in RESEARCH NOTES and EXPOSITORY PAPERS. 


Table of Contents from Volume X, Summer 2002

Research Notes

Some Consequences of Symmetry in the Coefficients of Two Series when Constructing Continued Fractions that Correspond to the Two Series
Eliana X. L. de Andrade and John H. McCabe

On Semiclassical Linear Functionals: The Symmetric Companion
J. Arvesu, J. Atia and F. Marcellan

On the Computation of Gauss-type and Szego Quadrature Formulas by the Levinson and the Split Levinson Algorithm
Ruyman Cruz-Barroso and Pablo Gonzalez-Vera

Repeated Thiele Fractions
Olav Njastad

Interpolation Function of Non-Thiele Type Continued Fractions
M. Pahirya

A Limit Theorem for Approximants of PPC-Fractions used in Frequency Analysis
Haakon Waadeland

Abstracts

The Convergence Regions of the Branched Continued Fractions Special Form
T. M. Antonova and D.I. Bodnar

Orthogonal Rational Functions and Continued Fractions
Adhemar Bultheel, Pablo Gonzilez-Vera, Erik Hendriksen and Olav Njastad

Determinacy of a Rational Moment Problem
Adhemar Bultheel, Pablo Gonz;ilez-Vera, Erik Hendriksen and Olav Njastad

A Rational Stieltjes Moment Problem
Adhemar Bultheel, Pablo Gonzalez-Vera, Erik Hendriksen and Olav Njastad

Orthogonal Laurent Polynomials and Quadrature Formulas for Unbounded Intervals: I. Gauss-type Formulas
Bultheel, C. Diaz-Mendoza, P. Conzdlez-Vera, R. Orive

Orthogonal Bases for Discrete Time System Identification
A. Bultheel and P. Van gucht

Szego Quadrature Formulas for Certain Jacobi-type Weight Functions
Leyla Daruis, Pablo Gonzalez-Vera and Olav Njastad

Zeros of Sobolev Orthogonal Polynomials of Hermite Type
M.G. de Bruin, W.G.M. Groenevelt and H.G. Meijer

Pal-type Birkhoff Interpolation on Nonuniformly Distributed Points
M.G. de Bruin and H.P. Dikshit

Birkhoff Interpolation on Nonuniformly Distributed Nodes
M.G. de Bruin and H.P. Dikshit

An Interpolation Algorithm for Orthogonal Rational Functions
J. Van Deun and A. Bultheel

Ratio Asymptotics for Orthogonal Rational Functions on the Interval
J. Van Deun and A. Bultheel

Rational Basis Functions in Functions in Discrete Least Squares Approximation
P. Van gucht and A. Bultheel

State Space Representation for Arbitrary Orthogonal Rational Functions
P. Van gucht and A. Bultheel


Table of Contents from Volume IX, Summer 2001

Research Notes

Computation of the Circumference of an Ellipse
Lisa Lorentzen and Haakon Waadeland

Orthogonal Polynomials and Cubic Polynomial Mappings II: The Positive Definite Case
F. Marcellan and J. Petronilho

Some New Aspects of Thiele Interpolation Continued Fraction
Mikhailo Pahirya

A Special Toeplitz Determinant
Vigdis Brevik Petersen

On a Derivation of the Differential Equation for some Hypergeometric Functions
T.C. Ramamurthy and P. Dorai

On the Convergence of Pade Approximants for Heine's Series-II
T.G. Ramamurthy and M.S. Ganesan

On Discrepancies Between Solutions to Discrete Models for Hyperbolic Systems of Conservation Laws: Continued Fractions Approach
Zdzislaw W. Trzaska

Progress Reports

Regularity of Some 'Incomplete' Pal-type Interpolation Problems
Marcel G. de Bruin

Abstracts

Convergence Criteria for Branched Continued Fractions with Nonnegative Components
D.I. Bodnar

On the Convergence of Branched Continued Fractions
D.I. Bodnar

Interpolation on Non-uniformly Distributed Nodes
Marcel G. de Bruin

Algebraic and Spectral Properties of General Toeplitz Matrices
A. Bultheel and P. Carrette

Orthogonal Rational Functions and lnterpolatory Product Rules on the Unit Circle
Adhemar Bultheel, Pablo Gonzalez-Vera, Erik Hendriksen and Olav Njastad

Elements of a Theory of Orthogonal Rational Functions
Adhemar Bultheel, Pablo Gonzalez-Vera, Erik Hendriksen and Olav Njastad

Robust Rational Approximation for Identification
Adhemar Bultheel, M. Van Barel xnd Y. Rolain

The Multidimensional g-fraction Corresponding to the Formal N-multiple Power Series
R.I. Dmytryshyn

Orthogonal Rational Functions on an Interval
J. Van Deun and Adhemar Bultheel


Table of Contents from Volume VIII, Summer 2000

Reseach Notes

Certain Related Strong Measures and the Associated Orthogonal L-polyitomials 
E.X.L. de Andrade, C.F. Bracciali and A. Sri Ranga

Monotonicity of Multi-point Pade Approximants
A. Bultheel, P. Goozilez-Vera, E. Hendriksen and 0. Njistad

A Comparison of Two Definitions for Orthogonal Laurent Polynomials
Monte 0. Cheney III, Michael J. Witsot, and S. Clement Cooper

Numerical Estimation of the Herglotz-Riesz Transform by Using Two-point Pade Approximants  Leyla Daruis and Pablo Conzglez-Vera 

On Newton-Thiele-Like Interpolating Formula
Khrystyna Kuchniins'kd and Svitiana Vozna

More Tales About Tails?
Paul Levrie and Adhemar Buitheel 

Orthogonal Polynomials and Cubic Polynomial Wappings I
F. Marcellin and J. Petronilho 

Canonical and Extremal Solutioms of Strong Moment Problems
Olav Njistad 

An Old Tale About an Uninteresting Zero
Vigdis Petersen and Haakon Waadeland 

On the Convergence of Pade Approximants for Heine's Series-I
T.G. Pamwnurthy and M.S. Ganesan

The Indistinct Continuous Fractions
M. Siavavko and 0. Rybytska 

A Relation Between Orthogonal Rational Functions on the Unit Circle and the Interval [-1, 1]
Patrick Van gucht and Adhemar Buitheel

Abstracts

The Estimates of Truncation Error for Multidimensional g-Fractions
D.I. Bodnar and R.I. Drnytryshyn 

Natural Solutions of Indeterminate Strong Stieltjes Moment Problems Derived
from PC-Fractions
C.M. Bonan-Hamada, William B. Jones and Olav Njastad 

A Class of Indeterminate Strong Stieltjes Moment Problems with Discrete
Distributions
C.M. Bonan-Hamada, William B. Jones, Olav Njastad and W.J. Thron

Birkhoff Interpolation on Perturbed Roots of Unity on the Unit Circle
M.G. de Bruin and A. Sharma 

Birkhoff Interpolation on Non-Uniforndy Distributed Roots of Unity
M.G. de Bruin and A. Sharma 

Birkhoff Interpolation on Non-Uniformly Distributed Roots of Unity II
M.G. de Bruin and A. Sharma 

Birkhoff Interpolation on Unity and on Mobius Transform of the Roots of Unity 
M.G. de Bruin and A. Sharma 

Minimizing the Uncertainty Product with Composite Signals
M.G. de Bruin and C. Kamminga 

A Connection Between Quadrature Formulas on the Unit Circle and the
Interval [-l, 1]
A. Bultheel and P. Gonzilez-Vera 

Interpolation by Rational Functions with Nodes on the Unit Circle
A. Bultheel, P. Gonzilez-Vera, E. Hendriksen, 0. Njastad 

Rational Approximation in Linear Systems and Control
A.  Bultheel and B. De Moor 

Boundary Asymptotics for Orthogonal Rational Functions on the Unit Circle
A. Bultheel and P. Van gucht 

Orthogonal Laurent Polynomials and Strong Moment Theory: A Survey
William B. Jones and Olav Njastad      .

A Time-Frequency Entropy Measure of Uncertainty Applied to Dolphin Echolocation Signals
C. Kamminga, A.B. Cohen Stuart and M.G. de Bruin 

Lens-Shaped Regions for Strong Stieltjes Moment Problems
Olav Njastad

Nevanlinna Matrices for the Strong Stieltjes Moment Problem
Olav Njastad

Strong Stieltjes Moment Problems
Olav Njastad

About the Construction of Two-dimension and Three-dimension Interpolating Continued Fractions
Mictiailo Pahirya

State-Space Realization and Orthogonal Rational Functions
P. Van gucht and A. Bultheel 

Bernstein Equiconvergence and Fej6r npe Theorems for General Rational Fourier Series
P. Van guctit and A. Bultlieel 

Orthogonal Rational Functions and Frequency Analysis. An Example
Haakon Waadeland



Table of Contents from Volume VI

Communications in the Analytic Theory of Continued Fractions
Volume 6, Summer 1997 

Table of Contents:

Description of the Journal 

Expository Paper

Using Mathematica to Study Orthogonal L-Polynomials
Lyle Cochran 

Research Notes

A Note on Para-orthogonal Laurent Polynomials
Olav Njastad 

On the "Fork" Property for Two-dimensional Continued Fractions
Khrystyna Kuchmins'ka 

The Transformation of Parameter Formal Decomposition for Solutions of Linear Differential Equations in Converging Continued Ritz-fractions
T.V. Pasichnik & M. Sjavavko 

On the Positive J-fraction Solutions of Linear Functional Equations
0. Rybytska 

Two-variable Polynomials and Related Continued Fractions
Z. Trzaska 

Classroom Notes

A Note on Rational Interpolation
A. Cuyt & B. Verdonk 

Computing the Coefficients of Some Continued Fractions
C. Bracciali & J. McCabe 

The Analogy Between Periodic Continued Fractions & Geometric Series
J. Gill 

Abstracts

The Pade & Table and its Relation to Certain Numerical Algorithms
M. Hochbruck 

Asymptotic Properties of Zeros of Orthogonal Rational Functions
0. Njastad & H. Waadeland 

Generalized Szeg6 Theory in Frequency Analysis
0. Njastad & H. Waadeland 

Some Results about Numerical Quadrature on the Unit Circle
0. Njastad, J. Santos-Leon, P. Gonzalez-Vera 

Orthogonal Rational Functions & Modified Approximants
A. Bultheel, P. Gonzalez-Vera, E. Hendriksen, 0. Njastad 

Rates of Convergence of Multipoint Rational Approximations and Quadrature Formulas on the Unit Circle
  A. Bultheel, P. Gonzalez-Vera, E. Hendriksen, 0. NjAstad 

On the Convergence of Multi-point Pade Type Approximants and Quadrature Formulas Associated with the Unit Circle
A. Bultheel, P. Gonzalez-Vera, E. Hendriksen, 0. Njastad 

Translation of the Russian Paper "Orthogonal Systems of  Rational Functions on the Unit Circle"
K. Willer & A. Bultheel 

Quadrature on the Half-line and Two-point Pade Approximants  to Stieltjes Functions. Part 1: Algebraic Aspects
A. Bultheel, P. Gonzalez-Vera, R. Orive 

Quadrature on the Half-line and Two-point Pade Approximants to Stieltjes Functions. Part 11: Convergence
A. Bultheel, C. Diaz-Mendoza, P. Gonzalez-Vera, R. Orive 

Quadrature on the Half-line and Two-point Pade Approximants to Stieltjes Functions. Part III: The Unbounded Case
A. Bultheel, C. Diaz-Mendoza, P. Gonzalez-Vera, R. Orive 

A Theorem on Toeplitz Determinants with Elements Containing Tchebycheff-polynomials of the First Kind
V. Petersen 

Progress Report

A Conjecture of Schoenberg
M. de Bruin, K. Ivanov, A. Sharma 



Table of Contents from Volume V

Communications in the Analytic Theory of Continued Fractions
Volume 5, Summer 1996 

Table of Contents:

Description of the Journal 

Expository Paper

Proving Convergence Results for Periodic Continued Fractions Using Linear Algebra
Lyle Cochran 

Research Notes

On Links Between Continued Fractions and Modified Numerical Triangles
Zdzislaw Trzaska 

Szego Polynomials in Frequency Analysis: Observations on Speed of Convergence
Vigdis Petersen 

Historical Note

Asymptotic Series and continued Fractions: Stieltjes and After
Christopher Baltus 

Abstracts / Progress Reports / Reviews

Convergence of Modified Aproximants Associated with  Orthogonal Rational Functions
A. Bultheel,  P. Gonzalez-Vera, E. Hendriksen, 0. Nj5stad (1995) 

Convergence of Orthogonal Rational Functions
A. Bultheel,  P. Gonzalez-Vera, E. Hendriksen, 0. Njastad (1995) 

Favard Theorem for Reproducing Kernels
A. Bultheel,  P. Gonzalez-Vera, E. Hendriksen, 0. Nj5stad (1995) 

Continuous Sobolev-Laguerre Orthogonal Polynomials & Their Generalized Continued Fractions
M. de Bruin (Progress Report) 

A New Definition of Entropy: Explicit Values for Negative Exponential Distributions
M. de Bruin (Progress Report) 

Dynamics of Composition Sequences of Bilinear & Other Transformations
J. Gill (To Appear) 

A Natural Continuous Interpolating Structure for Modified & Traditional Continued Fractions
J. Gill (Preprint) 

A Note on Bounds for the Derivatives of Continued Fractions
J. Gill (To Appear) 

Bounds on Remainder Terms in Szego Quadrature 
on the Unit Circle. W. Jones, H. Waadeland (1994) 

Classical & Strong Moment Problems
0. Njastad (1995) 

Extremal Solutions of the Strong Stieltjes Moment Problem
0. Nj5stad (1995) 

Solutions of the Strong Hamburger Moment Problem
0. Nj6stad (1996) 

Solutions of the Strong Stieltjes Moment Problem
0. Njastad (1995) 

Fractional Analytical Methods for Solving 111-Posed  Problems & Image Deblurring
T. Pasichnik, 0. Rubutska,  M. Sjavavko (1994) 

The Ill-Posed Operator & Rational Algorithms of  Normal Solutions of Fredholm Integral Equations of the First Kind
T. Pasichnik, 0. Rubutska, M. Sjavavko (1995) 54 

Nonperturbative Solutions of Nonlinear Differential Equations using Continued Fractions
T- Pickett, W. Ditto (1988) 

From Matrix to Vector Pad6 Approximants
D. Roberts, P. Graves-Morris (1994) 

Clifford Algebras and Vector-Valued Rational Forms I 
D. Roberts 0 990) 

Clifford Algebras and Vector-Valued Rational Forms 11
D. Roberts (1992) 

On the Algebraic Foundations of the Vector e-Algorithm
D. Roberts (1995) 

Vector-Valued Rational Forms
D. Roberts (1993) 

Numerical Triangle, Fibonacci Sequence & Ladder Networks: Some Further Results
Z. Trzaska (1993) 

Modified Numerical Triangle & the Fibonacci Sequence
Z. Trzaska (1994) 

Some Continued Fractions with Point-Circle Twin Element Regions
H. Waadeland (1992) 

Probability Distribution of Continued Fraction Values: An Invitation & an Example
H. Waadeland (1992) 

Reflections on Reflection Coefficients
H. Waadeland (1994) 

A Worpitzsky Boundary Theorem for N-Branched Continued Fractions
H. Waadeland (1993) 


   

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