Carl de Boor's papers at ftp.cs.wisc.edu/Approx

These files can be obtained by anonymous from ftp.cs.wisc.edu/Approx. The files are postscript, and are also available as compress(ed) files, as indicated by the subscript .Z, to be uncompress(ed) before using, as well as as (shorter) gzip(ed) files, as indicated by the subscript .gz, to be extracted by gzip -d .
The files are now also available in pdf. For those from before '98, these pdf files might not look very good in an acrobat reader, but will print just fine.
If you have trouble because of file contamination, specify binary as your first command in ftp.
The files are in order of increasing age.

re_quak.pdf
A comment on Ewald Quak's "About B-splines";
Carl de Boor
october 2016
\JNAAT;45(1); 2016; 84--86;

re_shadrin: ps ps.Z ps.gz pdf
On the (bi)infinite case of Shadrin's theorem concerning the $L_\infty$-boundedness of the $L_2$-spline projector;
Carl de Boor
july 2011
has appeared in the Subbotin 75th anniversary volume
Trudy Instituta Matematiki i Mekhaniki UrO RAN; 17(3); 2011, 25--29;

stahl: ps ps.Z ps.gz pdf
On Radon's recipe for choosing correct sites for multivariate polynomial interpolation;
Dominik Stahl and Carl de Boor
june 2011
\JAT; 163(12); 2011; 1854--1858;

dahmen: ps ps.Z ps.gz pdf
The way things were in multivariate splines: A personal view;
Carl de Boor
april 2009
in Multiscale, Nonlinear and Adaptive Approximation, R. DeVore and A. Kunoth
(eds.), Springer Verlag (Berlin-Heidelberg, Germany); 2009; 19--37;

angpl: ps ps.Z ps.gz pdf
Multivariate polynomial interpolation: Aitken-Neville sets and generalized principal lattices;
Carl de Boor
april 2008
updated 1may08, 8jul08, 10aug08
\JAT; 161(1); 2009; 411--420;

shekht: ps ps.Z ps.gz pdf
On the pointwise limits of bivariate Lagrange projectors;
Carl de Boor and Boris Shekhtman
november 2007
\LAA; 429(1); 2008; 311--325;

boxsubdv: ps ps.Z ps.gz pdf
Box splines revisited: convergence and acceleration methods for the subdivision and the cascade algorithms;
Carl de Boor and Amos Ron
december 2006
\JAT; 150(1); 2008; 1--23;

gcn: ps ps.Z ps.gz pdf
Multivariate polynomial interpolation: conjectures concerning GC-sets;
Carl de Boor
september 2006
proc. 1st Dolomites Workshop: 2006:
07dec06 update
\NA; 45; 2007; 113--125;

laglimit: ps ps.Z ps.gz pdf
What are the limits of Lagrange projectors?
Carl de Boor
december 2005
(Constructive Theory of Functions, Varna 2005), B. Bojanov (ed.),
Marin Drinov Acad.\ Publ.\ House (Sofia); 2006; 51--63;

MvsD: ps ps.Z ps.gz pdf
Ideal interpolation: Mourrain's condition vs $D$-invariance;
Carl de Boor
jan 2005
(Banach Center Publications Vol.~72: Approximation and Probability),
Tadeusz Figiel and Anna Kamont (eds.), IMPAN (Warszawa, Poland); 2006; 49--55;

texasxi: ps ps.Z ps.gz pdf
Ideal interpolation;
Carl de Boor
dec 2004
\TexasXI; 59--91;
dec05: three footnotes added

deboor2.pdf
Divided differences;
Carl de Boor
nov 2004
Surveys in Approximation Theory; 1; 2005; 46--69;
http://www.math.technion.ac.il/sat/papers/2

monomint: ps ps.Z ps.gz pdf
Interpolation from spaces spanned by monomials
Carl de Boor
aug 2004
\AiCM; 26(1-3); 2007; 63--70;

efficdvd: ps ps.Z ps.gz pdf
An efficient definition of the divided difference
Carl de Boor
aug 2004
in (Approximation Theory: A Volume Dedicated to Borislav Bojanov),
D. K. Dimitrov, G. Nikolov, and R. Uluchev (eds.), Marin Drinov Academic
Publ. House (Sofia); 2004; 58--63;

radpol: ps ps.Z ps.gz pdf
On interpolation by radial polynomials
Carl de Boor
dec 2003
as of 21jul04/23feb04
\AiCM; 24; 2006; 143--153;

asympterr: ps ps.Z ps.gz pdf
An asymptotic expansion for the error in a linear map that reproduces polynomials of a certain order
Carl de Boor
apr 2003
\JAT; 134; 2005; 171--174;

chakpop: ps ps.Z ps.gz pdf
The B-spline recurrence relations of Chakalov and of Popoviciu
Carl de Boor and Allan Pinkus
mar 2003
\JAT; 124(1); 2003; 115--123;

floater: ps ps.Z ps.gz pdf
A divided difference expansion of a divided difference
Carl de Boor
nov 2002
\JAT; 122(1); 2003; 10--12;

leibniz: ps ps.Z ps.gz pdf
A Leibniz formula for multivariate divided differences
Carl de Boor
apr 2002
\SJNA; 41(3); 2003; 856--868;

cagdhand: ps ps.Z ps.gz pdf
Spline Basics
Carl de Boor
dec 2000
Chapter 6 in \Cagdhand; see (cagd.snu.ac.kr/main.html)

inverse_basis: ps ps.Z ps.gz pdf
What is the inverse of a basis?
Carl de Boor
sep 2000
BIT; 41(5); 2001; 880--890;
(the printed version contains a random 7 right in the middle of (4.2), the most
important formula of the paper, and an extra p in the first display on page 889)

polintflats: ps ps.Z ps.gz pdf
Polynomial interpolation to data on flats in $\Rd$
Carl de Boor, Nira Dyn, Amos Ron
aug 1999
\JAT; 105; 2000; 313--343;

jordannf: ps ps.Z ps.gz pdf
On Ptak's derivation of the Jordan normal form;
Carl de Boor
may 1999
\LAA; 310; 2000; 9--10;

mp: ps ps.Z ps.gz pdf
Computational aspects of multivariate polynomial interpolation: Indexing the coefficients
Carl de Boor
jan/feb 1999
may99 incorporated referee's comments
\AiCM; 12; 2000; 289--301;

smooth: ps ps.Z ps.gz pdf
Calculation of the smoothing spline with weighted roughness measure
Carl de Boor
sep 1998
Math.\ Models Methods Appl.\ Sci.; 11(1); 2001; 33--41;

encoan: ps ps.Z ps.gz pdf
Multivariate Hermite interpolation (talk at Guernavaca, 13apr99)
Carl de Boor
apr 1999
updated 08feb01 to conform to present-day notation
updated 20apr08 to correct some misprints

message.mp5
A selfunwrapping wrapper containing MATLAB 5 programs for the construction and evaluation of the least interpolant to data in any number of dimensions
Carl de Boor
as of February 1999

chamonix: ps ps.Z ps.gz pdf
The error in polynomial tensor-product, and in Chung-Yao, interpolation
Carl de Boor
February 1997
in
Surface Fitting and Multiresolution Methods
A. Le M\'ehaut\'e, C. Rabut, and L. L. Schumaker (eds),
Vanderbilt University Press (Nashville TN), 35--50.
6apr09: added missing reference to Waldron'98a

splerr: ps ps.Z ps.gz pdf
On the Meir/Sharma/Hall/Meyer analysis of the spline interpolation error
Carl de Boor
December 1996
Appeared in:
\Powellfest; 47--58;

BDR4: ps ps.Z ps.gz pdf
Approximation orders of FSI spaces in $L_2(\Rd)$
Carl de Boor, Ron DeVore, and Amos Ron
March 1996
additional references added June-July 1996
referees' comments incorporated Aug/Sep 1996
a minor but useful variation of main result and add'l refs added feb97
An earlier version was, unfortunately, printed as
\CA; 14; 1998; 411--429;
The correct version is
\CA; 14; 1998; 631--652;

zerocount: ps ps.Z ps.gz pdf
The multiplicity of a spline zero
Carl de Boor
December 1995
January 96 (reflect referee's comments)
appeared in
\AoNM; 4; 1997; 229--238;

bennett: ps ps.Z ps.gz pdf
On determining the foot of the continental slope
Carl de Boor
November 1995
revised feb'96

ker2: ps ps.Z ps.gz pdf
On ascertaining inductively the dimension of the joint kernel of certain commuting linear operators. II
Carl de Boor, Amos Ron, Zuowei Shen
May 1995
Adv. in Math. {\bf 123} (1996), 223--242.

sauerxu
On the Sauer-Xu formula for the error in multivariate polynomial interpolation;
Carl de Boor
March 1995
\MC; 65; 1996; 1231--1234;

multdvdf: ps ps.Z ps.gz pdf
A multivariate divided difference
Carl de Boor
March 1995
\TexasVIIIa; 87--96;
% 25mar02: supplied missing g in (4.1) and completed refs [17] and [18].

polintelim: ps ps.Z ps.gz pdf
Gauss elimination by segments and multivariate polynomial interpolation
Carl de Boor
March 1994
in (Approximation and Computation), R.V.M. Zahar (ed.),
ISNM 119, Birkh\"auser Verlag (Basel-Boston-Berlin); 1994; 1--22;

boxeval: ps ps.Z ps.gz pdf
On the evaluation of box splines,
Carl de Boor
March 1993
has appeared in Numer.Algorithms; 5; 1993; 5--23;
an alternative approach, particularly good for multiple directions, can be
found in Leif Kobbelt's paper
Stable evaluation of box splines;
\NA; 14(4); 1997; 377--382;
% available at
% http://www.mpi-sb.mpg.de/~kobbelt/papers/boxeval.ps.gz
% with the corresponding set of m-files at
% http://www.mpi-sb.mpg.de/~kobbelt/papers/boxeval.tgz

multpp: ps ps.Z ps.gz pdf
Multivariate piecewise polynomials,
Carl de Boor
October 1992
has appeared in Acta Numerica; 2; 1993; 65--109;

aowoquasi: ps ps.Z ps.gz pdf
Approximation order without quasi-interpolants
Carl de Boor
August 1992
has appeared in \TexasVII; 1--18;

ker: ps ps.Z ps.gz pdf
On ascertaining inductively the dimension of the joint kernel of certain commuting linear operators
Carl de Boor, Amos Ron, Zuowei Shen
June 1992
updated Apr 96 to reflect copy editor's changes
has appeared in Adv. Applied Math; 17; 1996; 209--250;

aobivar: ps ps.Z ps.gz pdf
A sharp upper bound on the approximation order of smooth bivariate pp functions
Carl de Boor and Rong-Qing Jia
March 1992
has appeared in J.Approx.Theory; 72(1); 1993; 24--33;

wavelet: ps ps.Z ps.gz pdf
On the construction of multivariate (pre)wavelets
Carl de Boor, Ronald A. DeVore, Amos Ron
February 1992
has appeared in Constr.Approx.; 9; 1993; 123--166;

several: ps ps.Z ps.gz pdf
The structure of finitely generated shift-invariant spaces in $L_2(\RR^d)$
Carl de Boor, Ronald A. DeVore, Amos Ron
February 1992
has appeared in J. of Functional Analysis 119(1); 1994; 37--78;
% minor correction in intro 01feb01

polinterr: ps ps.Z ps.gz pdf
On the error in multivariate polynomial interpolation
Carl de Boor
1991
has appeared in Applied Numerical Mathematics; 10; 1992; 297--305;

l2shift: ps ps.Z ps.gz pdf
Approximation from shift-invariant subspaces of $L_2(\RR^d)$
Carl de Boor, Ronald A. DeVore, Amos Ron
July 1991
has appeared in Trans.Amer.Math.Soc. 341; 1994; 787--806;
% note, this file has the name `ell-2-shift', not `one-two-shift'.
% misprint corrected: 19oct94, 17nov97

aoinfty: ps ps.Z ps.gz pdf
Fourier analysis of the approximation power of principal shift-invariant spaces
Carl de Boor, Amos Ron
July 1991
has appeared in Constr.Approx.; 8; 1992; 427--462;

quasiaprx: ps ps.Z ps.gz pdf
Quasiinterpolants and approximation power of multivariate splines
Carl de Boor
July 1990
has appeared in
(Computations of curves and surfaces), Dahmen, Gasca, Micchelli
(eds.), Kluwer (Dordrecht, Netherlands); 1990; 313--345;

leastsol: ps ps.Z ps.gz pdf
The least solution for the polynomial interpolation problem;
Carl de Boor, Amos Ron
June 1990
has appeared in Math.Zeitschrift; 210; 1992; 347--378;

compleast
Computational aspects of polynomial interpolation in several variables
Carl de Boor, Amos Ron
March 1990
has appeared in Math.Comp.; 58; 1992; 705--727;

empty: ps ps.Z ps.gz pdf
An empty exercise
Carl de Boor
March 1990
has appeared in
ACM SIGNUM Newsletter; 25(4); 1990; 2--6;

polintconte: ps ps.Z ps.gz pdf
Polynomial interpolation in several variables
Carl de Boor
March 1990
has appeared in
(Studies in Computer Science {(in Honor of Samuel D. Conte)}),
R. DeMillo and J. R. Rice (eds.), Plenum Press (New York); 1994; 87--119;

modest: ps ps.Z ps.gz pdf
An alternative approach to (the teaching of) rank and dimension
Carl de Boor
February 1990
has appeared in
\LAA; 146; 1991; 221--229;

quasi: ps ps.Z ps.gz pdf
The exponentials in the span of the multiinteger translates of a compactly supported function: quasiinterpolation and approximation order
Carl de Boor and Amos Ron
November 1989
has appeared in
J. London Math. Soc. (2); 45; 1992; 519--535;

polideal: ps ps.Z ps.gz pdf
Polynomial ideals and multivariate splines
Carl de Boor, Amos Ron
June 1989
has appeared in
(Multivariate Approximation Theory IV, ISNM 90),
C. Chui, W. Schempp, and K. Zeller (eds.),
Birk\-h\"auser Verlag (Basel); 1989; 31--40;

twopolspaces: ps ps.Z ps.gz pdf
On two polynomial spaces associated with a box spline
Carl de Boor, Nira Dyn \& Amos Ron
April 1989
has appeared in
\PJM; 147; 1991; 249--267;
% (may'99: corrected and updated the references)

newideal: ps ps.Z ps.gz pdf
On polynomial ideals of finite codimension with applications to box spline theory;
Carl de Boor, Amos Ron
December 1988
has appeared in
\JMAA; 158; 1991; 168--193;
% (de.01: corrected (3.8), changed pi to Pi, updated one reference)

discgreen.html
Fundamental solutions for multivariate difference equations;
Carl de Boor, Klaus H\"ollig, Sherman Riemenschneider
1988
has appeared in
\AJM; 111; 1989; 403--415;

multiint: ps ps.Z ps.gz pdf
On multivariate polynomial interpolation
Carl de Boor, Amos Ron
November 1988
has appeared in Constr. Approx.; 6; 1990; 287--302;
% (13nov98: corrected two misprints and changed the symbol for polynomial
% space from \pi to \Pi)

limorg: ps ps.Z ps.gz pdf
The limit at the origin of a smooth function space;
Carl de Boor, Amos Ron
November 1988
has appeared in \TexasVI; 93--96;

cornercut: ps ps.Z ps.gz pdf
Local corner cutting and the smoothness of the limiting curve;
Carl de Boor
November 1988
has appeared in \CAGD; 7; 1990; 389--397;

chebspline: ps ps.Z ps.gz pdf
The exact condition of the B-spline basis may be hard to determine
Carl de Boor
July 1988
has appeared in \JAT; 60; 1990; 344--359;

whatisspline: ps ps.Z ps.gz pdf
What is a multivariate spline?
Carl de Boor
August 1987
has appeared
(Proc.\ First Intern.\ Conf.\ Industr.\ Applied Math., Paris 1987), J.\
McKenna and R. Temam (eds.), SIAM (Philadelphia PA); 1988; 90--101;

bsplloccond: ps ps.Z ps.gz pdf
The condition of the B-spline basis for polynomials
Carl de Boor
April 1987
has appeared as
\SJNA; 25(1); 1988; 148--152;
but the journal's final computer-aided processing messed up the paper through
the omission of various words (that happened to lie beyond column 80 on a
line in the TeX file).

bsplbasic: ps ps.Z ps.gz pdf
B-spline basics
Carl de Boor
MRC 2952, 1986
in (Fundamental Developments of Computer-Aided Geometric Modeling),
Les Piegl (ed.), Academic Press (London) 1993; 27--49;
% Corrected (in Section 12) on 04 mar 96.
% Scaling of figures adjusted and misprints corrected on 03 jun 96
% A misprint corrected (and adjusted to current tex-macros) on 06 jun 96
% A misprint corrected on 12feb98
% A reference updated 27apr09 but the change to (2.4b) made then rescinded on 30mar10

birmingham: ps ps.Z ps.gz pdf
Multivariate Approximation
Carl de Boor
MRC 2950, August 1986
in (State of the Art in Numerical Analysis),
A. Iserles and M. Powell (eds.),
Institute Mathematics Applications (Essex); 1987; 87--109;
% 10mar09: some references, some notation (for pol.spaces, intervals, etc)
% updated; unfortunately, the picture files are lost.

BBform: ps ps.Z ps.gz pdf
$B$--form basics;
Carl de Boor
1986
in (Geometric Modeling: Algorithms and New Trends),
G. E. Farin (ed.),
SIAM Publications (Philadelphia); 1987; 131--148;
% 30nov09 supplied the missing Figure 3, and corrected a typo in (3.3) and in
% last display before Section 6.

polshift: ps ps.Z ps.gz pdf
The polynomials in the linear span of integer translates of a compactly supported function
Carl de Boor
1986
has appeared in: \CA; 3; 1987; 199--208;
% may99: updated the references, corrected various typos, and made the changes:
% \Pi --> \tilde\Pi, \pi -->\Pi, scale-invariant --> dilation-invariant,
% scale (S_h) --> ladder (S_h)

convcardseries.h
Convergence of cardinal series;
Carl de Boor, Klaus H\"ollig, Sherman Riemenschneider
August 1985
has appeared: \PAMS; 98(3); 1986; 457--460;

notaknot: ps ps.Z ps.gz pdf
Convergence of cubic spline interpolation with the not-a-knot condition
Carl de Boor
1985
MRC TSR 2876, October 1985

partitions_of_unity
Partitions of unity and approximation
Carl de Boor and Ronald DeVore
May 1984
has appeared in \PAMS; 93(4); 1985; 705--709;

tpproof
A geometric proof of total positivity for spline interpolation
Carl de Boor and Ron DeVore
March 1984
has appeared in \MC; 45(172); 1985; 497--504;

convbivcard.pdf
Convergence of bivariate cardinal interpolation;
C. de Boor, K. H\"ollig, S. Riemenschneider
1984
has appeared in \CA; 1; 1985; 183--193;

contrapp: ps ps.Z ps.gz pdf
Controlled approximation and a characterization of the local approximation order
Carl de Boor and R.-Q. Jia
1984
has appeared in Proc.\ AMS; 95(4); 1985; 547--553;
http://www.ams.org/journals/proc/1985-095-04/S0002-9939-1985-0810161-X/S0002-9939-1985-0810161-X.pdf

bivcard.pdf
Bivariate cardinal interpolation by splines on a three-direction mesh;
Carl de Boor, Klaus H\"ollig, Sherman Riemenschneider;
1984
\IJM, 29(4), 1985, 533--566;

c1counter
Approximation order from bivariate $C^1$-cubics: A counterexample
Carl de Boor and Klaus H"ollig
1982
has appeared as
\PAMS; 87(4); 1983; 649--655;

approxorder
Approximation order from smooth bivariate splines
C. de Boor, R. DeVore, K. H\"ollig
1982
has appeared in TexasIV; 353--357;

lancaster_lectures.pdf
Topics in multivariate approximation theory
C. de Boor
May 1982
TSR #2379, Mathematics Research Center, University of Wisconsin-Madison

boxsplinestart
Approximation by smooth multivariate splines
Carl de Boor and Ron DeVore
December 1981
has appeared in \TAMS; 276(2); 1983; 775--788;

infsignreg
Inverses of infinite sign regular matrices
C. de Boor, S. Friedland, and A. Pinkus
November 1980
has appeared: \TAMS; 274(1); 1982; 59--68;

multirecur
Recurrence relations for multivariate B-splines
Carl de Boor and Klaus H\"ollig
May 1981
has appeared: \PAMS; 85(3); 1982; 397--400;

inversebiinfband
The inverse of a totally positive bi-infinite band matrix
C. de Boor
November 1980
has appeared: \TAMS; 274(1); 1982; 45--58;

superconvergence
Local piecewise polynomial projection methods for an O.D.E.\ which give high-order convergence at knots
Carl de Boor and Blair Swartz
summer 1980
has appeared in \MC; 36; 1981; 21--33;

maxnormbound: ps ps.Z ps.gz pdf
On a max-norm bound for the least-squares spline approximant
Carl de Boor
1980
has appeared in
(Approximation and Function Spaces),
C. Ciesielski (ed.),
North Holland (Amsterdam); 1981; 163--175;

colloceignumer
Collocation approximation to eigenvalues of an ordinary differential equation: Numerical illustrations;
Carl de Boor and Blair Swartz
March 1980
has appeared in \MC; 36(153); 1981; 1--19;

colloceigprinc
Collocation approximation to eigenvalues of an ordinary differential equation: The principle of the thing;
Carl de Boor and Blair Swartz
March 1979
has appeared in \MC; 35(151); 1980; 679--694;

tensor.pdf
Efficient Computer Manipulation of Tensor Products:
Carl de Boor
oct 1978
has appeared in
ACM Trans. Math. Software; 5(2); 1979; 173--182;
Final production introduced many typos, all marked in the present copy
see Corrigenda, ACM Trans. Math. Software; 5(4); 1979; 525;

agee: ps ps.Z ps.gz pdf
How does Agee's smoothing method work?
Carl de Boor
1978
has appeared in
(Proceedings of the 1979 Army Numerical Analysis and Computers Conference),
xxx (ed.), ARO Rept.\ 79-3, Army Research Office (Triangle Park NC); 1979;
299--302;

jacobi.pdf
The Numerically Stable Reconstruction of a Jacobi Matrix from Spectral Data;
Carl de Boor and G. H. Golub
apr 1977
\LAA; 21; 1978; 245--360;

survey76: ps ps.Z ps.gz pdf
Splines as linear combinations of B-splines. A Survey
Carl de Boor
1976
has appeared in \TexasII; 1--47;
% corrected version (with updated references) 19sep97
% left off an extraneous label (6.1) 01aug03

oddbiinf: ps ps.Z ps.gz pdf
Odd-degree spline interpolation at a biinfinite knot sequence
Carl de Boor
\Tex-version of MRC TSR #1666, August 1976
has appeared in \BonnI; 30--53;

l2inlinfconj
A bound on the $L_\infty$-norm of $L_2$-approximation by splines in terms of a global mesh ratio;
Carl de Boor
1975
has appeared:
\MC; 30(136); 1976; 765--771;
http://www.ams.org/journals/mcom/1976-30-136/S0025-5718-1976-0425432-1/S0025-5718-1976-0425432-1.pdf

bsplcalcintegral.pdf
On calculating with B-splines II. Integration;
C. de Boor, T. Lyche, L. L. Schumaker;
1975
(warning: it's a 10Mb file)
in: Numerische Methoden der Approximationstheorie Vol.\ 3, ISNM 30),
L. Collatz, G. Meinardus, and H. Werner (eds.),
Birk\-h\"auser Verlag (Basel); 1976; 123--146;

loclinfl: ps ps.Z ps.gz pdf
On local linear functionals which vanish at all $B$-splines but one;
Carl de Boor
1975
has appeared in (Theory of Approximation with Applications),
A. G. Law and N. B. Sahney (eds.),
Academic Press (New York); 1976; 120--145;

budanfourier: ps ps.Z ps.gz pdf
Cardinal interpolation and spline functions VIII: The Budan Fourier theorem for splines and applications;
Carl de Boor and I. J. Schoenberg
feb 1975
has appeared in (Lecture Notes in Mathematics 501), K. B\"ohmer (ed),
Springer-Verlag (Berlin); 1976; 1--77;
% corrected jul2000 a la KohlerNikolov95a

smallderiv: ps ps.Z ps.gz pdf
A smooth and local interpolant with ``small'' $k$-th derivative;
Carl de Boor
1975
has appeared in
(Numerical Solutions of Boundary Value Problems for Ordinary Differential Equations),
A. Aziz (ed.), Academic Press (New York); 1975;
177--197;

howsmall: ps ps.Z ps.gz pdf
How small can one make the derivatives of an interpolating function?;
Carl de Boor
1973
has appeared as \JAT; 13; 1975; 105--116;
% corrected version (with updated references) 22oct99

cubicnullspline.pdf
On cubic spline functions that vanish at all knots;
Carl de Boor
1973
\AiM, 20(1), 1976, 1--17;

perfect_spline
A remark concerning perfect splines;
Carl de Boor;
1973
has appeared as \BAMS; 80(4); 1974; 724--727;
http://www.ams.org/journals/bull/1974-80-04/S0002-9904-1974-13572-X/S0002-9904-1974-13572-X.pdf

tp.pdf
Total positivity of the spline collocation matrix;
Carl de Boor;
1974
\JMM, 25(6), 1976, 724--727;

splbound: ps ps.Z ps.gz pdf
On bounding spline interpolation;
Carl de Boor
1973
\JAT; 14(3); 1975; 191--203;
% added a footnote pointing out that Jia disproved the conjecture, in %Jia88d

quasiint: ps ps.Z ps.gz pdf
The quasi-interpolant as a tool in elementary polynomial spline theory;
Carl de Boor
1973
has appeared in \TexasI; 269--276;

goodappr: ps ps.Z ps.gz pdf
Good approximation by splines with variable knots;
Carl de Boor
1973
has appeared in \EdmontonI; 57--72;

LArep71.pdf
Subroutine Package for Calculating with B-splines;
Carl de Boor
August 1971
report LA-4728-MS Los Alamos scientific laboratory,
An extended version has appeared as
``Package for calculating with B-splines'', \SJNA, 14, 1977, 441--472.

bsplcalc.pdf
On calculating with $B$-splines;
Carl de Boor
september 1970
\JAT; 6; 1972; 50--62;

gamma: ps ps.Z ps.gz pdf
On the approximation by $\gamma$-polynomials;
Carl de Boor
1969
has appeared in \MadisonII; 157--183;

unifappr: ps ps.Z ps.gz pdf
On uniform approximation by splines
Carl de Boor
1967
has appeared as \JAT; 1; 1968; 219--235;
4oct08 various misprints have been corrected

tr20: ps ps.Z ps.gz pdf
Least Squares Cubic Spline Approximation I -- Fixed Knots
Carl de Boor, John R. Rice
CSD TR 20 April 1968

tr21: ps ps.Z ps.gz pdf
Least Squares Cubic Spline Approximation II -- Variable Knots
Carl de Boor, John R. Rice
CSD TR 21 April 1968
% error in NUBAS corrected 3oct01

spaprmom.pdf
On local spline approximation by moments;
Carl de Boor
Sep 1966
has appeared in
\JMM; 17; 1968; 729--735;

deboorphd: ps ps.Z ps.gz pdf
The method of projections as applied to the numerical solution of two point boundary value problems using cubic splines
Carl de Boor Ph.D. thesis, Univ.\ Michigan
August 1966
% corrected version (with updated references) 4apr96

lynch: ps ps.Z ps.gz pdf
On splines and their minimum properties;
Carl de Boor and Robert E. Lynch
1965
has appeared in
\JMM; 15; 1966; 953--969;

birkhoff_error.pdf
Error bounds for spline interpolation;
Garrett Birkhoff & Carl de Boor;
1964
\JMM, 13(5), 1964, 827--835;

birkhoff.pdf
Piecewise polynomial interpolation and approximation;
Garrett Birkhoff and Carl R. de Boor;
1965
VERY LONG FILE, 8.1Mb
has appeared in
\Generalmotors; 164--190;

baoddspline.pdf
Best approximation properties of spline functions of odd degree;
Carl de Boor;
1963
\JMM, 12(5), 1963, 747--750;

bicubic.pdf
Bicubic spline interpolation;
Carl de Boor
1960
VERY LONG FILE, 4.8Mb
has appeared in
\JMP (J.Mathematics and Physics); 41(3); 1962; 212--218;

viva_vi: ps ps.Z ps.gz pdf
Viva vi!, (a brief introduction to vi)
Carl de Boor
1987
version: 03aug03

intro: ps ps.Z ps.gz pdf
TeXnicalities (an informal introduction to TeX use) (the odd pages)
Carl de Boor
1987
version: 06feb99

ttintro: ps ps.Z ps.gz pdf
TeXnicalities (an informal introduction to TeX use) (the even pages)
Carl de Boor
1987
version: 06feb99

format.tex
A file of plain TeX macros useful for writing papers and books in plain TeX (including automatic sequencing of formal items and items in the bibliography, and the exact placement of items).
Carl de Boor
1983
version: 31may04

verbatim.tex
A file of plain TeX macros useful for handling the typesetting of programs and program-related material in plain TeX.
Carl de Boor
1991
version: 25feb98

index.tex
A file of plain TeX macros useful for generating (the draft of) an index.
Carl de Boor
1993
version: 27jun98

journal.tex
TeX macros of use with the spline bibliography.
Carl de Boor
1990
version: 05jun04

proceed.tex
TeX macros of use with the spline bibliography.
Carl de Boor
1990
version: 02may04

refmac.tex
TeX macros of use with the spline bibliography.
Carl de Boor
1990
version: 27may04

message.mm
a self-unwrapping wrapper containing files for simplifying the safe mailing of files via email.
Carl de Boor
1989
version: mar 96

isobib: ps ps.Z ps.gz pdf
List of publications of I. J. Schoenberg
(Carl de Boor)
1987
updated 10mar09