Rolf Klötzler

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Rolf Johannes Klötzler (born January 11, 1931 in Chemnitz ) is a German mathematician who was best known for his contributions to the calculus of variations and optimization .

Live and act

Rolf Klötzler studied mathematics at the University of Leipzig from 1949 to 1953 with Ernst Hölder and Herbert Beckert . He then aspirant and senior assistant and in 1956 with the work of multidimensional contributions to the theory variational problems with buckled extremals Dr. rer. nat. PhD . He then worked at the Institute for Pure Mathematics at the Academy of Sciences of the GDR until 1959 , where he worked in particular on the creation of two-volume Mathematical Dictionary under the direction of Josef Naas .

From 1959 he was a lecturer at the Hochschule für Bauwesen Leipzig , where he was appointed professor at the chair of mathematics and descriptive geometry in 1961 . In 1965 he followed a call as a professor with a teaching position at the Martin Luther University in Halle , where he became director of the mathematics section in 1968. In 1971 he was appointed to the chair for optimization at the University of Leipzig . In 1996 he retired and then taught for a year at the Brandenburg Technical University in Cottbus and at the FH Merseburg .

Rolf Klötzler was a member of the Mathematical Society of the GDR (MGDDR) from 1964 , later on its board and until 1990 the last chairman.

In 1968 he was the initiator of the journal Contributions to Analysis (from 1982 Journal for Analysis and Its Applications ) and was its co-editor and editor-in-chief. He was also co-editor of the magazine for applied mathematics and mechanics (ZAMM), the communications of the Mathematical Society of the GDR and the magazine for operations research .

In 1988 Rolf Klötzler was elected a member of the German Academy of Sciences Leopoldina .

Fonts

  • with Wolfgang Tutschke , Klaus Wiener (Ed.): Contributions to Analysis. Booklet series. German Science Publishers, Berlin 1971.
  • Contributions to the theory of multi-dimensional variation problems with kinked extremals. Dissertation. University of Leipzig 1956. Akademie-Verlag, Berlin 1958.
  • The construction of geodetic fields on a large scale in the calculus of variations of multiple integrals. Habilitation thesis. University of Leipzig 1960. Akademie-Verlag, Berlin 1961.
  • Multi-dimensional calculus of variations (= university books for mathematics . Volume 68). Deutscher Verlag der Wissenschaften, Berlin 1969.
    Licensed edition: Birkhäuser, Basel 1970.
  • About a generalization of the Legendre-Hadamard condition to restricted variation problems. Collaborative Research Center 256 (Nonlinear Partial Differential Equations) of the Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn 1989.
  • with Sabine Pickenhain: Pontryagin's Maximum Principle for Multidimensional Control Problems. In: International Series of Numerical Mathematics. Volume 111. Birkhäuser, Basel 1993, pp. 21-30.
  • Optimization and Duality. Lecture at the German Academy of Natural Scientists Leopoldina. In: Leopoldina. 38, R. 3, 1993, pp. 107-115.
  • (Ed.): Calculus of variations and partial differential equations of the first order. Calculation of Variations By C. Carathéodory, with contributions by H. Boerner and E. Hölder. Teubner, Stuttgart / Leipzig 1994, ISBN 3-8154-2019-9 .
  • In what sense has the 23rd Hilbert problem been solved so far? Brandenburg Technical University, Cottbus 1996.

Web links

Individual evidence

  1. ↑ 50 years of building colleges in Leipzig ( Memento of the original from November 3, 2014 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 20 MB) @1@ 2Template: Webachiv / IABot / bauwesen.htwk-leipzig.de
  2. ↑ Mathematical professorships, lectureships and guest lectures from September 1945 to August 1969 ( Memento of the original from November 3, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. on the website of the University of Halle @1@ 2Template: Webachiv / IABot / did.mathematik.uni-halle.de
  3. ^ Helmut Koch : Mathematics. Brandenburg Academy of Sciences, p. 153 (PDF; 7.5 MB)
  4. ^ Mathematical Society of the GDR in the University Archives of the University of Freiburg
  5. ↑ Günther Deweß: The foundation of the Mathematical Society students Leipzig 1974. In: Hans-Gert Gräbe (ed.): 10 years LSGM - 30 years MSG. Leipzig, 2005, p. 33 (PDF; 396 kB).
  6. ^ Rolf Klötzler's membership entry at the German Academy of Sciences Leopoldina , accessed on April 11, 2015.
personal data
SURNAME Klötzler, Rolf
ALTERNATIVE NAMES Klötzler, Rolf Johannes (full name)
BRIEF DESCRIPTION German mathematician and university professor
DATE OF BIRTH January 11, 1931
PLACE OF BIRTH Chemnitz