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{{Short description|British mathematician}}
{{For|the footballer|Keith Ball}}
{{For|the footballer|Keith Ball}}
{{Use dmy dates|date=August 2017}}
{{EngvarB|date=August 2017}}
{{Infobox scientist
{{Infobox scientist
| name = Keith Ball
| name = Keith Ball
| birth_name = Keith Martin Ball
| birth_name = Keith Martin Ball
| native_name_lang =
| native_name_lang =
| image =
| image = Ball Keith.jpg
| image_size =
| image_size =
| alt =
| alt =
| caption =
| caption = Ball in 2009
| birth_date = {{Birth date and age|1960|12|26}}<ref name="whoswho">{{cite web |url=http://www.ukwhoswho.com/view/article/oupww/whoswho/U256692 |title=BALL, Prof. Keith Martin |work=Who's Who 2014, A & C Black, an imprint of Bloomsbury Publishing plc, 2014; online edn, Oxford University Press }}{{subscription required}}</ref>
| birth_date = {{Birth date and age|df=yes|1960|12|26}}<ref name="whoswho">{{cite web |url=http://www.ukwhoswho.com/view/article/oupww/whoswho/U256692 |title=BALL, Prof. Keith Martin |work=Who's Who 2014, A & C Black, an imprint of Bloomsbury Publishing plc, 2014; online edn, Oxford University Press |url-access=subscription |access-date=20 February 2014 |archive-date=14 February 2022 |archive-url=https://web.archive.org/web/20220214060230/https://www.ukwhoswho.com/view/10.1093/ww/9780199540884.001.0001/ww-9780199540884-e-256692;jsessionid=56AB92DDFEC6E5F842215FECC13631C6 |url-status=live }}</ref>
| birth_place = [[New York]]<ref name="whoswho"/>
| birth_place = New York City<ref name="whoswho"/>
| death_date = <!-- {{Death date and age|YYYY|MM|DD|YYYY|MM|DD}}
| death_date = <!-- {{Death date and age|df=yes|YYYY|MM|DD|YYYY|MM|DD}}
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(death date then birth date) -->
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| doctoral_advisor = [[Béla Bollobás]]<ref name="mathgene">{{MathGenealogy|id=70811}}</ref>
| doctoral_advisor = [[Béla Bollobás]]<ref name="mathgene">{{MathGenealogy|id=70811}}</ref>
| academic_advisors =
| academic_advisors =
| doctoral_students = Gergely Ambrus<ref name="mathgene"/>
| doctoral_students =
| notable_students =
| notable_students =
| known_for =
| known_for =
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| awards = {{Plainlist|
| awards = {{Plainlist|
* [[Fellow of the Royal Society|FRS]] (2013)
* [[Fellow of the Royal Society|FRS]] (2013)
* [[Royal Society of Edinburgh|FRSE]] (2013)<ref name="frse">http://www.royalsoced.org.uk/cms/files/fellows/lists/fellows.pdf</ref>}}
* [[Royal Society of Edinburgh|FRSE]] (2013)<ref name="frse">{{cite web |url=https://rse.org.uk/fellowship/keith-ball/ |title=Professor Keith Martin Ball FRS FRSE |website=[[Royal Society of Edinburgh]] |access-date=14 February 2022 |archive-date=14 February 2022 |archive-url=https://web.archive.org/web/20220214060229/https://rse.org.uk/fellowship/keith-ball/ |url-status=live }}</ref>
* [[Shephard Prize]] (2015)}}
| signature = <!--(filename only)-->
| signature = <!--(filename only)-->
| signature_alt =
| signature_alt =
| website = {{Plainlist|
| website = {{Plainlist|
* {{URL|http://keithmball.wordpress.com}}
* {{URL|keithmball.wordpress.com}}
* {{URL|http://www2.warwick.ac.uk/fac/sci/maths/people/staff/keith_ball}}}}
* {{URL|http://www2.warwick.ac.uk/fac/sci/maths/people/staff/keith_ball}}}}
| footnotes =
| footnotes =
| spouse =
| spouse =
| children =
| children =
}}'''Keith Martin Ball''' [[Royal Society|FRS]]<ref name="royal"/> [[Royal Society of Edinburgh|FRSE]]<ref name="frse"/> (born 26 December 1960) is a [[mathematician]] and [[professor]] at the [[University of Warwick]]. He was scientific director of the [[International Centre for Mathematical Sciences|International Centre for Mathematical Sciences (ICMS)]] from 2010 to 2014.<ref name="scopus">{{Scopus|id=7101771590}}</ref><ref name="doi10.1007/BF01231769|noedit">{{Cite journal | doi = 10.1007/BF01231769| title = Sharp uniform convexity and smoothness inequalities for trace norms| journal = Inventiones Mathematicae| volume = 115| pages = 463| year = 1994| last1 = Ball | first1 = K. | last2 = Carlen | first2 = E. A. | last3 = Lieb | first3 = E. H. }}</ref><ref name="doi10.1007/BF01231769|noedit"/><ref>{{Cite journal | doi = 10.1007/BF01896971| title = Markov chains, Riesz transforms and Lipschitz maps| journal = Geometric and Functional Analysis| volume = 2| issue = 2| pages = 137| year = 1992| last1 = Ball | first1 = K.}}</ref><ref>{{Cite journal | doi = 10.1090/S0894-0347-04-00459-X| year = 2004| last1 = Artstein | first1 = S. | journal = Journal of the American Mathematical Society| volume = 17| issue = 4| pages = 975| last2 = Ball | first2 = K. M. | last3 = Barthe | first3 = F. | last4 = Naor | first4 = A. |title=Solution of Shannon's problem on the monotonicity of entropy }}</ref><ref name="microsoft">{{AcademicSearch|450602}}</ref>
}}'''Keith Martin Ball''' [[Royal Society|FRS]]<ref name="royal">{{cite web|url=https://royalsociety.org/people/keith-ball-11030/ |title=Professor Keith Ball FRS |publisher=[[Royal Society]] |location=London}}</ref> [[Royal Society of Edinburgh|FRSE]]<ref name="frse"/> (born 26 December 1960) is a mathematician and professor at the [[University of Warwick]]. He was scientific director of the [[International Centre for Mathematical Sciences|International Centre for Mathematical Sciences (ICMS)]] from 2010 to 2014.<ref name="scopus">{{Scopus|id=7101771590}}</ref><ref name="doi10.1007/BF01231769|noedit">{{Cite journal | doi = 10.1007/BF01231769| title = Sharp uniform convexity and smoothness inequalities for trace norms| journal = Inventiones Mathematicae| volume = 115| pages = 463–482| year = 1994| last1 = Ball | first1 = K. | last2 = Carlen | first2 = E. A. | last3 = Lieb | first3 = E. H.| bibcode = 1994InMat.115..463B| s2cid = 189831705}}</ref><ref>{{Cite journal | doi = 10.1007/BF01896971| title = Markov chains, Riesz transforms and Lipschitz maps| journal = Geometric and Functional Analysis| volume = 2| issue = 2| pages = 137–172| year = 1992| last1 = Ball | first1 = K.| s2cid = 121182780}}</ref><ref>{{Cite journal | doi = 10.1090/S0894-0347-04-00459-X| year = 2004| last1 = Artstein | first1 = S. |author1-link=Shiri Artstein| journal = Journal of the American Mathematical Society| volume = 17| issue = 4| pages = 975| last2 = Ball | first2 = K. M. | last3 = Barthe | first3 = F. | author3-link = Franck Barthe | last4 = Naor | first4 = A. | author4-link = Assaf Naor |title=Solution of Shannon's problem on the monotonicity of entropy | doi-access = free | url = http://discovery.ucl.ac.uk/12545/1/12545.pdf }}</ref><ref name="microsoft">{{AcademicSearch|450602}}</ref>


==Education==
==Education==
Ball was educated at [[Berkhamsted School]]<ref name="whoswho"/> and [[Trinity College, Cambridge]]<ref name="whoswho"/> where he studied the [[Cambridge Mathematical Tripos]] and was awarded a [[Bachelor of Arts]] degree in [[Mathematics]] in 1982 and a [[Doctor of Philosophy|PhD]] in 1987 for research supervised by [[Béla Bollobás]].<ref name="ballphd">{{cite thesis |degree=PhD |first=Keith Martin|last=Ball |title=Isometric problems in lp̲ and sections of convex sets|publisher=University of Cambridge |date=1986 |url=http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384782|authorlink=Keith Martin Ball}}</ref>
Ball was educated at [[Berkhamsted School]]<ref name="whoswho"/> and [[Trinity College, Cambridge]]<ref name="whoswho"/> where he studied the [[Cambridge Mathematical Tripos]] and was awarded a Bachelor of Arts degree in [[mathematics]] in 1982 and a PhD in 1987 for research supervised by [[Béla Bollobás]].<ref name="ballphd">{{cite thesis |degree=PhD |first=Keith Martin |last=Ball |title=Isometric problems in lp̲ and sections of convex sets |publisher=University of Cambridge |year=1986 |url=http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384782 |author-link=Keith Martin Ball |access-date=20 February 2014 |archive-date=26 February 2014 |archive-url=https://web.archive.org/web/20140226123210/http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384782 |url-status=live }}</ref>


==Research==
==Research==
Keith Ball's research is in the fields of [[Functional Analysis]], High-dimensional and [[Discrete Geometry]] and [[Information Theory]]. He is the author of ''Strange Curves, Counting Rabbits, & Other Mathematical Explorations''.<ref>{{Cite book | isbn = 0691127972 | title = Strange Curves, Counting Rabbits, & Other Mathematical Explorations | last1 = Ball | first1 = Keith | authorlink1 = Keith Martin Ball | year = 2006 | publisher = Princeton University Press | url = http://press.princeton.edu/titles/7589.html | pages = }}</ref>
Keith Ball's research is in the fields of [[functional analysis]], high-dimensional and [[discrete geometry]] and [[information theory]]. He is the author of ''Strange Curves, Counting Rabbits, & Other Mathematical Explorations''.<ref>{{Cite book |isbn=0691127972 |title=Strange Curves, Counting Rabbits, & Other Mathematical Explorations |last1=Ball |first1=Keith |author-link1=Keith Martin Ball |year=2006 |publisher=Princeton University Press |url=http://press.princeton.edu/titles/7589.html |access-date=27 April 2015 |archive-date=20 April 2015 |archive-url=https://web.archive.org/web/20150420125300/http://press.princeton.edu/titles/7589.html |url-status=live }}</ref>


==Awards and honours==
==Awards and honours==
Ball was elected a Fellow of the [[American Mathematical Society|American Mathematical Society (AMS)]] in 2012<ref>[http://www.ams.org/profession/fellows-list List of Fellows of the American Mathematical Society]</ref> and a [[List of Fellows of the Royal Society elected in 2013|Fellow of the Royal Society (FRS) in 2013]]. His Royal Society citation reads {{centered pull quote|Keith Ball is an exceptionally original mathematician whose work has had a major influence on two branches of mathematics: functional analysis and information theory. He proved the first extension theorems for [[Lipschitz continuity|Lipschitz functions]] not reducible to one-point extensions and solved the reverse isoperimetric problem. He produced a sharp version of the [[Uniform boundedness principle|Banach-Steinhaus Theorem]] conjectured in the 50’s, and proved that infinitely many values of the [[Riemann zeta function|Riemann function]] at odd integers are irrational (with Rivoal). (With Artstein, Barthe and Naor) he answered a fundamental question in information theory by showing that the central limit theorem of probability is driven by an analogue of the [[second law of thermodynamics]]. Since 2010 Ball has served as Scientific Director of ICMS in Edinburgh. He also successfully popularises science, for example in his book "Strange curves…."<ref name="royal">{{cite web |url=http://royalsociety.org/people/keith-ball/ |title = Professor Keith Ball FRS |publisher=The Royal Society |archivedate=2014-02-20 |archiveurl=http://www.webcitation.org/6NWMi7VrH |location=London}}</ref>}}
Ball was elected a Fellow of the [[American Mathematical Society]] (AMS) in 2012<ref>{{cite web |url=http://www.ams.org/profession/fellows-list |title=List of Fellows of the American Mathematical Society |website=[[American Mathematical Society]] |access-date=7 May 2015 |archive-date=20 May 2019 |archive-url=https://web.archive.org/web/20190520051950/http://www.ams.org/profession/fellows-list |url-status=live }}</ref> and a [[List of Fellows of the Royal Society elected in 2013|Fellow of the Royal Society (FRS) in 2013]]. His Royal Society citation reads
{{blockquote|Keith Ball is an exceptionally original mathematician whose work has had a major influence on two branches of mathematics: functional analysis and information theory. He proved the first extension theorems for [[Lipschitz continuity|Lipschitz functions]] not reducible to one-point extensions and solved the reverse isoperimetric problem. He produced a sharp version of the [[Uniform boundedness principle|Banach-Steinhaus Theorem]] conjectured in the 50s, and proved that infinitely many values of the [[Riemann zeta function|Riemann function]] at odd integers are irrational (with Rivoal). (With [[Shiri Artstein|Artstein]], [[Franck Barthe|Barthe]] and [[Assaf Naor|Naor]]) he answered a fundamental question in information theory by showing that the central limit theorem of probability is driven by an analogue of the [[second law of thermodynamics]]. Since 2010 Ball has served as Scientific Director of ICMS in Edinburgh. He also successfully popularises science, for example in his book "Strange curves. ... "<ref name="royal"/>}}


==References==
==References==

Latest revision as of 18:45, 27 December 2023

For the footballer, see Keith Ball.

Keith Ball
Ball in 2009
Born
Keith Martin Ball

(1960-12-26) 26 December 1960 (age 63)[2]
New York City[2]
Alma materTrinity College, Cambridge
Awards
Scientific career
Fields
Institutions
ThesisIsometric problems in lp̲ and sections of convex sets (1986)
Doctoral advisorBéla Bollobás[3]
Website

Keith Martin Ball FRS[4] FRSE[1] (born 26 December 1960) is a mathematician and professor at the University of Warwick. He was scientific director of the International Centre for Mathematical Sciences (ICMS) from 2010 to 2014.[5][6][7][8][9]

Education[edit]

Ball was educated at Berkhamsted School[2] and Trinity College, Cambridge[2] where he studied the Cambridge Mathematical Tripos and was awarded a Bachelor of Arts degree in mathematics in 1982 and a PhD in 1987 for research supervised by Béla Bollobás.[10]

Research[edit]

Keith Ball's research is in the fields of functional analysis, high-dimensional and discrete geometry and information theory. He is the author of Strange Curves, Counting Rabbits, & Other Mathematical Explorations.[11]

Awards and honours[edit]

Ball was elected a Fellow of the American Mathematical Society (AMS) in 2012[12] and a Fellow of the Royal Society (FRS) in 2013. His Royal Society citation reads

Keith Ball is an exceptionally original mathematician whose work has had a major influence on two branches of mathematics: functional analysis and information theory. He proved the first extension theorems for Lipschitz functions not reducible to one-point extensions and solved the reverse isoperimetric problem. He produced a sharp version of the Banach-Steinhaus Theorem conjectured in the 50s, and proved that infinitely many values of the Riemann function at odd integers are irrational (with Rivoal). (With Artstein, Barthe and Naor) he answered a fundamental question in information theory by showing that the central limit theorem of probability is driven by an analogue of the second law of thermodynamics. Since 2010 Ball has served as Scientific Director of ICMS in Edinburgh. He also successfully popularises science, for example in his book "Strange curves. ... "[4]

References[edit]

  1. ^ a b "Professor Keith Martin Ball FRS FRSE". Royal Society of Edinburgh. Archived from the original on 14 February 2022. Retrieved 14 February 2022.
  2. ^ a b c d e "BALL, Prof. Keith Martin". Who's Who 2014, A & C Black, an imprint of Bloomsbury Publishing plc, 2014; online edn, Oxford University Press. Archived from the original on 14 February 2022. Retrieved 20 February 2014.
  3. ^ Keith Martin Ball at the Mathematics Genealogy Project
  4. ^ a b "Professor Keith Ball FRS". London: Royal Society.
  5. ^ Keith Martin Ball's publications indexed by the Scopus bibliographic database. (subscription required)
  6. ^ Ball, K.; Carlen, E. A.; Lieb, E. H. (1994). "Sharp uniform convexity and smoothness inequalities for trace norms". Inventiones Mathematicae. 115: 463–482. Bibcode:1994InMat.115..463B. doi:10.1007/BF01231769. S2CID 189831705.
  7. ^ Ball, K. (1992). "Markov chains, Riesz transforms and Lipschitz maps". Geometric and Functional Analysis. 2 (2): 137–172. doi:10.1007/BF01896971. S2CID 121182780.
  8. ^ Artstein, S.; Ball, K. M.; Barthe, F.; Naor, A. (2004). "Solution of Shannon's problem on the monotonicity of entropy" (PDF). Journal of the American Mathematical Society. 17 (4): 975. doi:10.1090/S0894-0347-04-00459-X.
  9. ^ Keith Martin Ball publications indexed by Microsoft Academic
  10. ^ Ball, Keith Martin (1986). Isometric problems in lp̲ and sections of convex sets (PhD thesis). University of Cambridge. Archived from the original on 26 February 2014. Retrieved 20 February 2014.
  11. ^ Ball, Keith (2006). Strange Curves, Counting Rabbits, & Other Mathematical Explorations. Princeton University Press. ISBN 0691127972. Archived from the original on 20 April 2015. Retrieved 27 April 2015.
  12. ^ "List of Fellows of the American Mathematical Society". American Mathematical Society. Archived from the original on 20 May 2019. Retrieved 7 May 2015.


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