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Department of Mathematics and Statistics at the Faculty of Science
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» Len Bos
Len Bos
Professor Emeritus of Math & Stats
Applied Mathematics
+1 (403) 210-6413
Mathematical Sciences 477
lpbos@math.ucalgary.ca
Website:
http://www.math.ucalgary.ca/~lpbos
Research Interests
Markovs inequality on sets with cusps and its relation to other phenomenon such as Sobolev-type inequalities and the extension of C (infinity) functions
Tangential Markov/Bernstein inequalities on manifolds
Weighted splines and minimum norm networks
Currently Teaching
Not currently teaching any courses.
view past courses
Publications
Book
Bos, Len
and Waldron, Shayne
.
On the structure of {K}ergin interpolation for points in general position
137. Birkh\"auser, 2001. 75-87. Print.
Bos, Len
and Maier, Ulrike
.
On the asymptotics of points which maximize determinants of the form {$\det[g(\vert x\sb i-x\sb j\vert )]$}
107. Wiley-VCH, Berlin, 1999. 107-128. Print.
Bos, Len
and Pavlov, Boris
.
Absolute continuity of convolutions of singular measures and new branches of spectrum of {L}iouvillians and few-body {H}amiltonians
399. Chapman \& Hall/CRC, Boca Raton, FL, 1999. 308-322. Print.
Bos, Len
and
Holland, Darius
.
Radial extensions of vertex data
18. Amer. Math. Soc., 1999. 5-14. Print.
Bos, Len
, Levenberg, N. and Taylor, B. A.
.
Characterization of smooth, compact algebraic curves in {${\bf R}\sp 2$}
31. Polish Acad. Sci., 1995. 125-134. Print.
Bos, Len
and Milman, P. D.
.
On {M}arkov and {S}obolev type inequalities on sets in {$\bold R\sp n$}
World Sci. Publishing, 1993. 81-100. Print.
Bos, Len
and Milman, P. D.
.
The equivalence of the usual and quotient topologies for {$C\sp \infty(E)$} when {$E\subset{\bf R}\sp n$} is {W}hitney {$p$}-regular
356. Kluwer Acad. Publ., 1992. 279-292. Print.
Bos, Len
and
Salkauskas, Kes
.
Weighted splines based on piecewise polynomial weight functions
, SIAM, 1992. 87-98. Print.
Bos, Len
, Grabenstetter, J. E. and
Salkauskas, Kes
.
Finite element interpolation with weighted smoothing
2. Acad. Cienc. Exact. F\'\i s. Qu\'\i m. Nat. Zaragoza, 1990. 17-23. Print.
Bos, Len
.
Asymptotics for the {C}hristoffel function for the equilibrium measure on a ball in {${\bf R}\sp m$}
Academic Press, 1989. 97-100. Print.
Bos, Len
and Gotay, Mark J.
.
Reduced canonical formalism for a particle with zero angular momentum
World Sci. Publishing, 1984. 83-91. Print.
Bos, Len
and Bloom, Thomas
.
On the convergence of {K}ergin interpolants of analytic functions
Academic Press, 1983. 369-374. Print.
Journal Article
Brudnyi, Alex
,
Bos, Len
and Levenberg, Norm
.
"
On polynomial inequalities on exponential curves in C^n
"
. Constr. Approx.
31.1 (2010): 139-147. Print.
Bos, Len
,
Brudnyi, Alex
, Levenberg, N. and Totik, V.
.
"
Tangential Markov inequalities on transcendental curves
"
. Constructive Approximation. An International Journal for Approximations and Expansions
19.3 (2003): 339-354. Print.
Bos, Len
and Maier, U.
.
"
On the asymptotics of {F}ekete-type points for univariate radial basis interpolation
"
. Journal of Approximation Theory
119.2 (2002): 252-270. Print.
Bos, Len
,
Ware, Antony
and Pavlov, B. S.
.
"
On a semi-spectral method for pricing an option on a mean-reverting asset
"
. Quantitative Finance
2.5 (2002): 337-345. Print.
Bagby, T.,
Bos, Len
and Levenberg, N.
.
"
Multivariate simultaneous approximation
"
. Constructive Approximation. An International Journal for Approximations and Expansions
18.4 (2002): 569-577. Print.
Bos, Len
and Marchi, Stefano
.
"
On the limit under scaling of polynomial {L}agrange interpolation on analytic manifolds
"
. Rendiconti del Circolo Matematico di Palermo. Serie II. Supplemento
, 68, part I (2002): 303-314. Print.
Bos, Len
, Calvi, Jean and Levenberg, Norman
.
"
On the {S}iciak extremal function for real compact convex sets
"
. Arkiv f\"or Matematik
39.2 (2001): 245-262. Print.
Bos, Len
, Taylor, M. A. and Wingate, B. A.
.
"
Tensor product {G}auss-{L}obatto points are {F}ekete points for the cube
"
. Mathematics of Computation
70.236 (2001): 1543-1547 (electronic). Print.
Bos, Len
and Marchi, Stefano
.
"
Fekete points for bivariate polynomials restricted to {$y=x\sp m$}
"
. East Journal on Approximations
6.2 (2000): 189-200. Print.
Bos, Len
and Marchi, S.
.
"
Limiting values under scaling of the {L}ebesgue function for polynomial interpolation on spheres
"
. Journal of Approximation Theory
96.2 (1999): 366-377. Print.
Korevaar, J. and
Bos, Len
.
"
Characterization of algebraic curves by {C}hebyshev quadrature
"
. Journal d'Analyse Math\'ematique
75. (1998): 233-246. Print.
Bos, Len
, Levenberg, N., Milman, P. D. and Taylor, B. A.
.
"
Tangential {M}arkov inequalities on real algebraic varieties
"
. Indiana University Mathematics Journal
47.4 (1998): 1257-1272. Print.
Bos, Len
, Vecchia, B. and Mastroianni, G.
.
"
On the asymptotics of {C}hristoffel functions for centrally symmetric weight functions on the ball in {$\bold R\sp d$}
"
. Rendiconti del Circolo Matematico di Palermo. Serie II. Supplemento
, 52, Vol. I (1998): 277-290. Print.
Bos, Len
and Calvi, Jean
.
"
Kergin interpolants at the roots of unity approximate {$C\sp 2$} functions
"
. Journal d'Analyse Math\'ematique
72. (1997): 203-221. Print.
Bos, Len
and
Holland, Darius
.
"
Network splines
"
. Results in Mathematics. Resultate der Mathematik
30.3-4 (1996): 228-258. Print.
Bagby, Thomas,
Bos, Len
and Levenberg, Norman
.
"
Quantitative approximation theorems for elliptic operators
"
. Journal of Approximation Theory
85.1 (1996): 69-87. Print.
Bos, Len
, Grabenstetter, J. E. and
Salkauskas, Kes
.
"
Pseudo-tensor product interpolation and blending with families of univariate schemes
"
. Computer Aided Geometric Design
13.5 (1996): 429-440. Print.
Bos, Len
, Levenberg, N., Milman, P. and Taylor, B. A.
.
"
Tangential {M}arkov inequalities characterize algebraic submanifolds of {${\bf R}\sp N$}
"
. Indiana University Mathematics Journal
44.1 (1995): 115-138. Print.
Bos, Len
and Milman, P. D.
.
"
Sobolev-{G}agliardo-{N}irenberg and {M}arkov type inequalities on subanalytic domains
"
. Geometric and Functional Analysis
5.6 (1995): 853-923. Print.
Bos, Len
.
"
Asymptotics for the {C}hristoffel function for {J}acobi like weights on a ball in {${\bf R}\sp m$}
"
. New Zealand Journal of Mathematics
23.2 (1994): 99-109. Print.
Bos, Len
and
Salkauskas, Kes
.
"
Limits of weighted splines based on piecewise constant weight functions
"
. The Rocky Mountain Journal of Mathematics
23.2 (1993): 483-493. Print.
Bloom, T.,
Bos, Len
, Christensen, C. and Levenberg, N.
.
"
Polynomial interpolation of holomorphic functions in {${\bf C}$} and {${\bf C}\sp n$}
"
. The Rocky Mountain Journal of Mathematics
22.2 (1992): 441-470. Print.
Salkauskas, Kes
and
Bos, Len
.
"
Weighted splines as optimal interpolants
"
. The Rocky Mountain Journal of Mathematics
22.2 (1992): 705-717. Print.
Bos, Len
.
"
On certain configurations of points in {${\bf R}\sp n$} which are unisolvent for polynomial interpolation
"
. Journal of Approximation Theory
64.3 (1991): 271-280. Print.
Bos, Len
.
"
Some remarks on the {F}ej\'er problem for {L}agrange interpolation in several variables
"
. Journal of Approximation Theory
60.2 (1990): 133-140. Print.
Bos, Len
.
"
A characteristic of points in {${\bf R}\sp 2$} having {L}ebesgue function of polynomial growth
"
. Journal of Approximation Theory
56.3 (1989): 316-329. Print.
Bos, Len
and
Salkauskas, Kes
.
"
Moving least-squares are {B}ackus-{G}ilbert optimal
"
. Journal of Approximation Theory
59.3 (1989): 267-275. Print.
Bos, Len
and
Salkauskas, Kes
.
"
Comment on the representation of splines as {B}oolean sums
"
. Journal of Approximation Theory
53.2 (1988): 155-162. Print.
Bos, Len
and
Salkauskas, Kes
.
"
On the matrix {$[\vert x\sb i-x\sb j\vert \sp 3]$} and the cubic spline continuity equations
"
. Journal of Approximation Theory
51.1 (1987): 81-88. Print.
Gotay, Mark J. and
Bos, Len
.
"
Singular angular momentum mappings
"
. Journal of Differential Geometry
24.2 (1986): 181-203. Print.
Bos, Len
and Torrence, R. J.
.
"
Comment on the {L}iouville equation and multisolitons
"
. Physics Letters. A
111.3 (1985): 95-96. Print.
Bos, Len
.
"
Bounding the {L}ebesgue function for {L}agrange interpolation in a simplex
"
. Journal of Approximation Theory
38.1 (1983): 43-59. Print.
Bos, Len
.
"
On {K}ergin interpolation in the disk
"
. Journal of Approximation Theory
37.3 (1983): 251-261. Print.
Galler, Bruce I. and
Bos, Len
.
"
A model of transaction blocking in databases
"
. Performance Evaluation. An International Journal
3.2 (1983): 95-122. Print.
Courses
Degrees
PhD
University of Toronto
, 1981
MSc
University of Toronto
, 1977
BSc
University of Toronto
, 1976
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