Konrad Gröger

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Konrad Gröger (* 1936 ) is a German mathematician and university professor .

Life

From 1953 to 1958 Gröger studied mathematics at the Humboldt University in Berlin . In 1955, while still a student, Gröger was in the Banach Center , Warsaw , where he was allowed to give a lecture. From 1958 to 1960 he was an aspirant at the Research Institute for Mathematics of the Academy of Sciences of the GDR .

Political activity and prison

During his studies, Gröger was in contact with the Association of German Student Unions and distributed leaflets with political content. At first he wasn't caught. It was not until 1960, when he had finished his studies and was already an aspirant, that he was arrested and sentenced to 8 years in prison for espionage and state-endangering agitation. Courageous colleagues of his turned to the public prosecutor's office after his arrest and obtained that Gröger was allowed to translate specialist mathematical literature in prison.

After Gröger had been in prison for 5 years, he was released in 1965. However, he was forbidden to return to his original scientific environment because his colleagues there were still convinced that he had been wrongly imprisoned. That is why he was placed in the Central Institute for Physical Chemistry of the Academy of Sciences.

Resumption of academic training, doctorate

From 1965 to 1970 Gröger was a research assistant at the Central Institute for Physical Chemistry at the Academy of Sciences. In 1968 he graduated as Dr. rer. nat. with a thesis on variation methods for equations with degenerate operators by Arno Langenbach .

Employment

In 1970 he moved to the Institute for Applied Mathematics and Mechanics (later: Central Institute for Mathematics and Mechanics, from 1992: Weierstrass Institute for Applied Analysis and Stochastics ). There he was a research assistant until 1993. In 1973 he completed his habilitation with a thesis on the regularity and approximation of solutions to nonlinear evolution equations ( dissertation B ). Until 1989, Gröger held a special lecture on higher analysis at the Faculty of Mathematics and Natural Sciences at Humboldt University. In 1990 Gröger was appointed honorary professor for analysis at the Humboldt University in Berlin. He has been a full professor there since 1993, succeeding his doctoral supervisor and sponsor Arno Langenbach.

Offices

In 1994 Gröger became Dean at Humboldt University and in 1995 a member of the Academic Senate. He was also elected Vice President of the Humboldt University. During this time he was involved in the evaluation of the scientific institutions of the GDR and in the development of the scientific campus in Adlershof .

family

Gröger is married and has two children.

Research topics

Gröger's main research areas were applied analysis , nonlinear operator equations , nonlinear operator differential equations and methods for their solution. He achieved much-noticed results on reaction processes of electrically charged particles.

Together with Lutz Recke (Humboldt University), Jens André Griepentrog (Weierstrass Institute for Applied Analysis and Stochastics), Oldřich John and Jana Stara (both Charles University in Prague ) he worked on the research project Regularity Statements for Solutions of Boundary Value Problems and Boundary Initial Value Problems for non-smooth data .

Together with K. Post (Humboldt University), Herbert Gajewski , Klaus Zacharias (both Weierstraß Institute for Applied Analysis and Stochastics), Bernhard Kawohl ( University of Cologne ), he worked on the research project modeling of chemotaxis processes .

Honors

On October 1, 1998, Gröger was awarded the Order of Merit of the State of Berlin by the Governing Mayor of Berlin, Eberhard Diepgen . This honored his commitment as the first Vice President of the Humboldt University in bringing together the science location Berlin.

On April 13, 2016, on his 80th birthday, Gröger was honored with a celebratory colloquium by the Weierstrass Institute for Applied Analysis and Stochastics. At this colloquium he was awarded the Medal of Honor for Mathematics of the Czech Mathematical Society for his services to the cooperation between Czech and German mathematicians.

Publications

As an author (selection)

  • Jens André Griepentrog, Konrad Gröger, Hans-Christoph Kaiser, Joachim Rehberg: Interpolation for function spaces related to mixed boundary value problems , Mathematische Nachrichten, 2002, Vol. 241, pp. 110-120. ( online )
  • Konrad Gröger, Lutz Recke: Preduals of Campanato spaces and Sobolev-Campanato spaces: A general construction , Math. Nachr., 230 (2001) pp. 45-72. ( online )
  • Konrad Gröger: Boundedness and continuity of solutions to second order elliptic boundary value problems , (English) Zbl 0845.35014, Nonlinear Anal., Theory Methods Appl. 26, No. 3: 539-549 (1996).
  • Annegret Glitzky, Konrad Gröger, Rolf Hünlich: Free Energy and Dissipation Rate for Reaction Diffusion Processes of Electrically Charged Species , Appl. Anal., 60: 201-217 (1996). ( online )
  • Herbert Gajewski, Konrad Gröger: Reaction-diffusion processes of electrically charged species , Math. Nachr., 177 (1996), pp. 109-130. ( online )
  • Annegret Glitzky, Konrad Gröger, Rolf Hünlich: Rothe's method for equations modeling transport of dopants in semiconductors. , Nonlinear analysis, 28: 463-487 (1997). ( online )
  • Annegret Glitzky, Konrad Gröger, Rolf Hünlich: Existence and uniqueness results for equations modeling transport of dopants in semiconductors. ( online )
  • Konrad Gröger: Free energy estimates and asymptotic behavior of reaction-diffusion processes. ( online )
  • Konrad Gröger: W1, p-estimates of solutions to evolution equations corresponding to nonsmooth second order elliptic differential operators , (English) Zbl 0764.35022, Nonlinear Anal., Theory Methods Appl. 18, No. 6: 569-577 (1992).
  • Herbert Gajewski, Konrad Gröger, Klaus Zacharias: Nonlinear operator equations and operator differential equations , Berlin, Akad.-Verl., 1974
  • Konrad Gröger: On the theory of evolution equations in which the “prehistory” plays a role , (German) Zbl 0261.47041, Math. Nachr. 56, 63-72 (1973).
  • Konrad Gröger: Introduction and application of Sobolew's spaces for any areas , (German) Zbl 0137.07901, Math. Nachr. 28, 123-144 (1965).
  • Konrad Gröger: Application of the variation method by A. Langenbach to the solution of degenerate elliptic differential equations , (German) Zbl 0132.07801, Math. Nachr. 29, 9-16 (1965).

As editor (selection)

  • Bernold Fiedler (Editor), Konrad Gröger (Editor), Jürgen Sprekels (Editor): Equadiff 99 (In 2 Volumes). Proceedings of the International Conference on Differential Equations. Berlin, Germany, August 1-7, 1999, World Scientific (2000), ISBN 981-02-4359-6

Web links

Individual evidence

  1. ↑ a b c d e f g h i Interviews with Konrad Gröger and Horst Martini Traces of life in and after the GDR at degruyter. Retrieved August 1, 2019.
  2. ↑ a b c d e f g h Prof. Dr. Konrad Gröger at mathematik.hu-berlin.de. Retrieved August 1, 2019.
  3. ↑ a b Konrad Gröger honored on his 80th birthday at wias. Retrieved August 1, 2019.
  4. ↑ a b c History of the discipline of mathematics at didaktik.mathematik.hu-berlin.de, p. 39. Accessed August 1, 2019.
  5. ^ Konrad Gröger at Mathematics Genealogy Project. Retrieved August 1, 2019.
  6. ↑ History of WIAS at wias. Retrieved August 1, 2019.
  7. ↑ On the regularity and approximation of solutions to nonlinear evolution equations at worldcat. Retrieved August 1, 2019.
  8. ↑ History of WIAS at wias. Retrieved August 1, 2019.
  9. ↑ Honors for Humboldtians at idw. Retrieved August 1, 2019.
personal data
SURNAME Gröger, Konrad
BRIEF DESCRIPTION German mathematician and university professor
DATE OF BIRTH 1936