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Gerhard Opfer
Observed names:
G. Opfer,
GERHARD OPFER,
Opfer, G.,
Opfer, Gerhard,
Opfer, Gerhard 1935-
Observed institutions:
Universität Hamburg,
Indiana University Bloomington,
Université Laval,
Indiana University,
University of Chemistry and Technology, Prague
OpenAlex ID:
A5000699041
A Note on the Computation of All Zeros of Simple Quaternionic Polynomials
2010
·
Drahoslava Janovská
, Gerhard Opfer
·
SIAM Journal on Numerical Analysis
·
75
Chebyshev-Vandermonde Systems
1991
·
Lothar Reichel
, Gerhard Opfer
·
Mathematics of Computation
·
53
PDF
The derivation of cubic splines with obstacles by methods of optimization and optimal control
1987
·
Gerhard Opfer
, Hans Joachim Oberle
·
Numerische Mathematik
·
52
Richardson's iteration for nonsymmetric matrices
1984
·
Gerhard Opfer
, Glenn Schober
·
Linear Algebra and its Applications
·
52
The classification and the computation of the zeros of quaternionic, two-sided polynomials
2009
·
Drahoslava Janovská
, Gerhard Opfer
·
Numerische Mathematik
·
36
Complex planar splines
1981
·
Gerhard Opfer
, Madan L Puri
·
Journal of Approximation Theory
·
22
Polynomials and Vandermonde matrices over the field of quaternions.
2009
·
Gerhard Opfer
·
20
On the Construction of Optimal Monotone Cubic Spline Interpolations
1999
·
Sigrid Fredenhagen
, Hans Joachim Oberle
, et al.
·
Journal of Approximation Theory
·
19
An algorithm for the construction of best approximations based on Kolmogorov's criterion
1978
·
Gerhard Opfer
·
Journal of Approximation Theory
·
19
Linear equations in quaternionic variables
2008
·
Drahoslava Janovsk
, Gerhard Opfer
·
18
Givens' Transformation Applied to Quaternion Valued Vectors
2003
·
D. Janovská
, G. Opfer
·
BIT Numerical Mathematics
·
18
Complex Chebyshev Polynomials on Circular Sectors with Degree Six or Less
1982
·
U. Grothkopf
, G. Opfer
·
Mathematics of Computation
·
16
PDF
Die Bestimmung des moduls zweifach zusammenh�ngender gebiete mit Hilfe von Differenzenverfahren
1969
·
G. Opfer
·
Archive for Rational Mechanics and Analysis
·
15
Explicit Faber Polynomials on Circular Sectors
1992
·
Karin Gatermann
, Christoph Hoffmann
, et al.
·
Mathematics of Computation
·
13
PDF
Hamburger Beitrage zur Angewandten Mathematik
2005
·
Gerhard Opfer
·
12
Numerische Mathematik für Anfänger
2002
·
Gerhard Opfer
·
Vieweg+Teubner eBooks
·
12
Solving complex approximation problems by semiinfinite - finite optimization techniques: A study on convergence
1982
·
Gerhard Opfer
·
Numerische Mathematik
·
12
Conformal mappings onto prescribed regions via optimization techniques
1980
·
Gerhard Opfer
·
Numerische Mathematik
·
12
New extremal properties for constructing conformal mappings
1979
·
Gerhard Opfer
·
Numerische Mathematik
·
12
A local algorithm for constructing non-negative cubic splines
1991
·
Bernd Fischer
, Gerhard Opfer
, et al.
·
Journal of Approximation Theory
·
11
On convergence and quasiregularity of interpolating complex planar splines
1982
·
Gerhard Opfer
, Glenn Schober
·
Mathematische Zeitschrift
·
9
Linear Equations in Quaternions
2007
·
Drahoslava Janovská
, Gerhard Opfer
·
Springer eBooks
·
7
On monotonicity preserving linear extrapolation sequences
1970
·
G. Opfer
·
Computing
·
7
The Algebraic Riccati Equation for Quaternions
2013
·
Drahoslava Janovská
, Gerhard Opfer
·
Advances in Applied Clifford Algebras
·
6
The conjugate gradient algorithm applied to quaternion valued matrices
2005
·
G. Opfer
·
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik
·
6
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Works count:
121
Citation count:
614
H-index:
13
I10-index:
20
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