# Gerd Grubb

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**Gerd Grubb** (born 12 February 1939)[1][2] is a Danish mathematician known for her research on [pseudo-differential operators](/source/Pseudo-differential_operator). She is a [professor emerita](/source/Professor_emerita) in the Department of Mathematical Sciences at the [University of Copenhagen](/source/University_of_Copenhagen),[3] where she was the first female professor of mathematics.[4]

## Education and career

Grubb was born on 12 February 1939 in Copenhagen, the daughter of two chemical engineers. She was a student at the [Øregård Gymnasium](/source/%C3%98reg%C3%A5rd_Gymnasium),[1] and then studied various sciences at the University of Copenhagen from 1956 until 1959. After earning a master's degree in mathematics at [Aarhus University](/source/Aarhus_University) in 1963, she went to [Stanford University](/source/Stanford_University) for doctoral study in mathematics, completing a Ph.D. in 1966.[5] Her dissertation, *A Characterization of the Non-Local Boundary Value Problems Associated With an Elliptic Operator*, was supervised by [Ralph S. Phillips](/source/Ralph_S._Phillips).[6] She completed a [habilitation](/source/Habilitation) (Dr. Phil.) in 1975 at the University of Copenhagen, with the habilitation thesis *Semiboundedness and other properties of normal boundary problems for elliptic partial differential operators*.[5]

She returned to the University of Copenhagen as an assistant professor in 1966, eventually becoming a full professor there in 1994.[1]

## Books

Grubb is the author of the books *Functional calculus of pseudodifferential boundary problems* (Progress in Mathematics 65, Birkhäuser, 1986; 2nd ed., 1996)[7] and *Distributions and operators* ([Graduate Texts in Mathematics](/source/Graduate_Texts_in_Mathematics) 252, Springer, 2009).[8]

## Recognition

Grubb is a member of the [Danish Academy of Natural Sciences](/source/Danish_Academy_of_Natural_Sciences).[1][9] The [University of Reims Champagne-Ardenne](/source/University_of_Reims_Champagne-Ardenne) gave her an honorary doctorate in 1988.[1][2][5] She was promoted to hedersdoktor (an honorary doctorate) at the University of Lund (Sweden) in 2016.[10] In 2020, she received the Gold Medal of the [Royal Danish Academy of Sciences and Letters](/source/Royal_Danish_Academy_of_Sciences_and_Letters).[4]

## References

1. ["Gerd Grubb (1939 – )"](https://www.kvinfo.dk/side/597/bio/961/origin/170/) (in Danish), *[Dansk kvindebiografisk leksikon](/source/Dansk_kvindebiografisk_leksikon)*, retrieved 2020-04-19

1. Berg, Christian, ["Gerd Grubb"](http://denstoredanske.dk/index.php?sideId=86115) (in Danish), *[Den Store Danske Encyklopædi](/source/Den_Store_Danske_Encyklop%C3%A6di)*, Gyldendal, retrieved 2020-04-19

1. ["Gerd Grubb, Emeritus"](https://www.math.ku.dk/english/staff/?pure=en/persons/64670), University of Copenhagen Department of Mathematical Sciences, 13 May 2013, retrieved 2020-04-19

1. ["The Royal Academy's gold medal to Gerd Grubb"](https://www.math.ku.dk/english/about/news/the-academys-gold-medal-to-gerd-grubb/), University of Copenhagen, 22 October 2020, retrieved 2021-01-02

1. ["Curriculum vitae"](http://www.math.ku.dk/~grubb/vitae10p.pdf), February 2010, retrieved 2020-04-19

1. Reviews of *Functional calculus of pseudodifferential boundary problems*: Luigi Rodino (1988), MR [0885088](https://mathscinet.ams.org/mathscinet-getitem?mr=0885088); Luigi Rodino (review of 2nd ed.), Zbl [0844.35002](https://zbmath.org/?q=an:0844.35002)

1. Reviews of *Distributions and operators*: Fabio Nicola (2010), MR [2453959](https://mathscinet.ams.org/mathscinet-getitem?mr=2453959); David Jornet, Zbl [1171.47001](https://zbmath.org/?q=an:1171.47001)

1. ["Members as of 10 December 2017"](http://www.danaak.dk/publikationer/2.DNA-06-10-2017%20%28%C3%85rsberetning%202017%29.pdf?attredirects=0), "Annual Report for 2017" (in Danish), Danish Academy of Natural Sciences, 2018, pp. 20–36

1. ["Hedersdoktor med känsla för precision"](http://www.maths.lu.se/nyheter/visa-nyhet/article/hedersdoktor-med-kaensla-foer-precision/) (in Swedish), Lund University, 18 December 2015, retrieved 2020-07-03

## External links

- [Home page](http://web.math.ku.dk/~grubb/)

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Adapted from the Wikipedia article [Gerd Grubb](https://en.wikipedia.org/wiki/Gerd_Grubb) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Gerd_Grubb?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.