Helmut Ratschek

According to our database, Helmut Ratschek authored at least 29 papers between 1969 and 2009.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2009

Interval Global Optimization.

Helmut Ratschek, Jon G. Rokne

Proceedings of the Encyclopedia of Optimization, Second Edition, 2009

2005

Scci-hybrid Methods for 2d Curve Tracing.

Helmut Ratschek, Jon G. Rokne

Int. J. Image Graph., 2005

2002

A Two-Dimensional Ellipse - Rectangle Intersection Test.

Helmut Ratschek, Jon G. Rokne

J. Math. Model. Algorithms, 2002

2001

Robustness in GIS algorithm implementation with application to line simplification.

Helmut Ratschek, Jon G. Rokne, M. Leriger

Int. J. Geogr. Inf. Sci., 2001

2000

Introduction to the Special Issue: What Can One Learn from Box-Plane Intersections?

Helmut Ratschek, Jon G. Rokne

Reliab. Comput., 2000

Exact Computation of Delaunay and Power Triangulations.

Marina L. Gavrilova, Helmut Ratschek, Jon G. Rokne

Reliab. Comput., 2000

Exact and Optimal Convex Hulls in 2D.

Helmut Ratschek, Jon G. Rokne

Int. J. Comput. Geom. Appl., 2000

How trivial are reliable box-plane intersections?

Helmut Ratschek, Jon G. Rokne

Comput. Aided Des., 2000

1999

Global Interval Methods for Local Nonsmooth Optimization.

Christiane Görges, Helmut Ratschek

J. Glob. Optim., 1999

Exact computation of the sign of a finite sum.

Helmut Ratschek, Jon G. Rokne

Appl. Math. Comput., 1999

1997

Reliable Computing Special Issue on Reliable Geometric Computations.

Helmut Ratschek, Jon G. Rokne

Reliab. Comput., 1997

Test for intersection between box and tetrahedron.

Helmut Ratschek, Jon G. Rokne

Int. J. Comput. Math., 1997

1996

The relationship between a rectangle and a triangle.

Helmut Ratschek, Jon G. Rokne

Vis. Comput., 1996

1995

Formulas for the width of interval products.

Helmut Ratschek, Jon G. Rokne

Reliab. Comput., 1995

1994

Box-sphere intersection tests.

Helmut Ratschek, Jon G. Rokne

Comput. Aided Des., 1994

1993

Experiments using interval analysis for solving a circuit design problem.

Helmut Ratschek, Jon G. Rokne

J. Glob. Optim., 1993

Test for intersection between plane and box.

Helmut Ratschek, Jon G. Rokne

Comput. Aided Des., 1993

1991

What can interval analysis do for global optimization?

Helmut Ratschek, Rudolf L. Voller

J. Glob. Optim., 1991

1988

Inclusion functions and global optimization II.

Ramon E. Moore, Helmut Ratschek

Math. Program., 1988

1985

Inclusion functions and global optimization.

Helmut Ratschek

Math. Program., 1985

1982

Linear interval equations.

Helmut Ratschek, W. Sauer

Computing, 1982

1980

Representation of interval operations by coordinates.

Helmut Ratschek

Computing, 1980

1975

Nichtnumerische Aspekte der Intervallmathematik.

Helmut Ratschek

Proceedings of the Interval Mathemantics: Proceedings of the International Symposium, 1975

1974

Über das Produkt von Intervallpolynomen.

Helmut Ratschek

Computing, 1974

Eigenschaften der von linearen Automaten erkennbaren Worte.

Klaus Ecker, Helmut Ratschek

Acta Informatica, 1974

1972

Gleichheit von Produkt und Formalprodukt bei Intervallpolynomen.

Helmut Ratschek

Computing, 1972

1971

Über die Ableitung von intervallwertigen Funktionen.

Helmut Ratschek, Gunnar Schröder

Computing, 1971

1970

Die binären Systeme der Intervallarithmetik.

Helmut Ratschek

Computing, 1970

1969

Über einige intervallarithmetische Grundbegriffe.

Helmut Ratschek

Computing, 1969