Siegfried Gottwald
Encyclopedia
Siegfried Johannes Gottwald (born 30 March 1943 in Limbach
, Saxony
) is a German mathematician
, logic
ian and historian of science
.
, where he was awarded his doctor title in 1969 and his habilitation
in 1977.
He is tenure
d professor
of non-classical and mathematical logic at University of Leipzig where he taught from 1972 to his retirement in 2008. His main research areas are fuzzy set
s and fuzzy methodologies, many-valued logic and history of mathematics
.
He has published several books on many-valued logic, fuzzy sets and their applications, co-authored a textbook on calculus
and a reader in the history of logic. He also contributed to the German biographical dictionary of mathematicians, Lexikon berühmter Mathematiker.
Professor Gottwald was Dean of the Faculty of Social Sciences and Philosophy at University of Leipzig for several years. He is married with three children.
Limbach-Oberfrohna
Limbach-Oberfrohna is a town in the district of Zwickau in the German Free State of Saxony.-Main sights:* Schloss Wolkenburg* Protestant church in Oberfrohna* Wasserturm * Town Hall* Limbach Municipal Church-Economy:...
, Saxony
Saxony
The Free State of Saxony is a landlocked state of Germany, contingent with Brandenburg, Saxony Anhalt, Thuringia, Bavaria, the Czech Republic and Poland. It is the tenth-largest German state in area, with of Germany's sixteen states....
) is a German mathematician
Mathematician
A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....
, logic
Logic
In philosophy, Logic is the formal systematic study of the principles of valid inference and correct reasoning. Logic is used in most intellectual activities, but is studied primarily in the disciplines of philosophy, mathematics, semantics, and computer science...
ian and historian of science
History of science
The history of science is the study of the historical development of human understandings of the natural world and the domains of the social sciences....
.
Life and work
From 1961 to 1966, Gottwald studied mathematics at the University of LeipzigUniversity of Leipzig
The University of Leipzig , located in Leipzig in the Free State of Saxony, Germany, is one of the oldest universities in the world and the second-oldest university in Germany...
, where he was awarded his doctor title in 1969 and his habilitation
Habilitation
Habilitation is the highest academic qualification a scholar can achieve by his or her own pursuit in several European and Asian countries. Earned after obtaining a research doctorate, such as a PhD, habilitation requires the candidate to write a professorial thesis based on independent...
in 1977.
He is tenure
Tenure
Tenure commonly refers to life tenure in a job and specifically to a senior academic's contractual right not to have his or her position terminated without just cause.-19th century:...
d professor
Professor
A professor is a scholarly teacher; the precise meaning of the term varies by country. Literally, professor derives from Latin as a "person who professes" being usually an expert in arts or sciences; a teacher of high rank...
of non-classical and mathematical logic at University of Leipzig where he taught from 1972 to his retirement in 2008. His main research areas are fuzzy set
Fuzzy set
Fuzzy sets are sets whose elements have degrees of membership. Fuzzy sets were introduced simultaneously by Lotfi A. Zadeh and Dieter Klaua in 1965 as an extension of the classical notion of set. In classical set theory, the membership of elements in a set is assessed in binary terms according to...
s and fuzzy methodologies, many-valued logic and history of mathematics
History of mathematics
The area of study known as the history of mathematics is primarily an investigation into the origin of discoveries in mathematics and, to a lesser extent, an investigation into the mathematical methods and notation of the past....
.
He has published several books on many-valued logic, fuzzy sets and their applications, co-authored a textbook on calculus
Calculus
Calculus is a branch of mathematics focused on limits, functions, derivatives, integrals, and infinite series. This subject constitutes a major part of modern mathematics education. It has two major branches, differential calculus and integral calculus, which are related by the fundamental theorem...
and a reader in the history of logic. He also contributed to the German biographical dictionary of mathematicians, Lexikon berühmter Mathematiker.
Professor Gottwald was Dean of the Faculty of Social Sciences and Philosophy at University of Leipzig for several years. He is married with three children.
Published books
- H. Bock, S. Gottwald, R.-P. Mühlig: Zum Sprachgebrauch in der Mathematik. Geest & Portig: Leipzig 1972 and Bagel: Düsseldorf / Vieweg: Braunschweig 1973.
- S. Gottwald, P. Günther, K. Beyer, V. Wünsch: Grundkurs Analysis. Parts 1–4, Math.-Naturwiss. Bibl., Vols. 53–56, Teubner: Leipzig 1972–74.
- K. Berka, S.Gottwald, L. Kreiser, W. Stelzner: Logik-Texte., Akademie-Verlag: Berlin and Wissensch. Buchgesellschaft: Darmstadt 1983.
- S. Gottwald: Mehrwertige Logik. Eine Einführung in Theorie und Anwendungen. Akademie-Verlag: Berlin 1989.
- S. Gottwald, H. Bandemer: Einführung in Fuzzy-Methoden. Theorie und Anwendungen unscharfer Mengen. Akademie-Verlag: Berlin 1989 (WTB Mathematik / Physik, Bd. 305). [also at Harry Deutsch: Thun – Frankfurt/Main 1990 (Deutsch Taschenbücher, Bd. 73)].
- S. Gottwald: Fuzzy Sets and Fuzzy Logic. Foundations of Application – from a Mathematical Point of View. Vieweg: Braunschweig/Wiesbaden and Teknea: Toulouse, 1993.
- S. Gottwald, H. Bandemer: Fuzzy Sets, Fuzzy Logic, Fuzzy Methods with Applications. John Wiley & Sons: Chichester, 1995.
- S. Gottwald: A Treatise on Many-Valued Logics. Studies in Logic and Computation, vol. 9, Research Studies Press: Baldock, Hertfordshire, England, 2001.