Kaisa Matomäki

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Kaisa S. Matomäki
Born (1985-04-30) April 30, 1985 (age 33)
Alma materUniversity of London
Scientific career
InstitutionsUniversity of Turku
Doctoral advisorGlyn Harman

Kaisa Sofia Matomäki (born April 30, 1985) is a Finnish mathematician specializing in number theory. Since September 2015, she has been working as an Academic Research Fellow in the Department of Mathematics and Statistics, University of Turku, Turku, Finland. Her research includes results on the distribution of multiplicative functions over short intervals of numbers; for instance, she showed that the values of the Möbius function are evenly divided between +1 and −1 over short intervals. These results, in turn, were among the tools used by Terence Tao to prove the Erdős discrepancy problem.[1]

Awards and honors[edit]

Kaisa Matomäki, along with Maksym Radziwill of McGill University, Canada, was awarded the SASTRA Ramanujan Prize for 2016.[2] The Prize was established in 2005 and is awarded annually for outstanding contributions by young mathematicians to areas influenced by Srinivasa Ramanujan.

The citation for the 2016 SASTRA Ramanujan Prize is as follows: "Kaisa Matomäki and Maksym Radziwill are jointly awarded the 2016 SASTRA Ramanujan Prize for their deep and far reaching contributions to several important problems in diverse areas of number theory and especially for their spectacular collaboration which is revolutionizing the subject. The prize recognizes that in making significant improvements over the works of earlier stalwarts on long standing problems, they have introduced a number of innovative techniques. The prize especially recognizes their collaboration starting with their 2015 joint paper in Geometric and Functional Analysis which led to their 2016 paper in the Annals of Mathematics in which they obtain amazing results on multiplicative functions in short intervals, and in particular a stunning result on the parity of the Liouville lambda function on almost all short intervals - a paper that is expected to change the subject of multiplicative functions in a major way. The prize notes also the very recent joint paper of Matomäki, Radziwill and Tao announcing a significant advance in the case k = 3 towards a conjecture of Chowla on the values of the lambda function on sets of k consecutive integers. Finally the prize notes, that Matomäki and Radziwill, through their impressive array of deep results and the powerful new techniques they have introduced, will strongly influence the development of analytic number theory in the future."[3]

With Radziwill, she is one of five winners of the 2019 New Horizons Prize for Early-Career Achievement in Mathematics, associated with the Breakthrough Prize in Mathematics.[4]

Education and career[edit]

Kaisa Matomäki was born in Nakkila, Finland, on 30 April 1985. She attended high school in Valkeakoski, Finland and won the First Prize in the national mathematics competition for Finnish high school students. She did her Masters at the University of Turku and received the Ernst Lindelof Award for the best Masters Thesis in mathematics in Finland in 2005. After completing her PhD at the Royal Holloway College of the University of London in 2009 under the direction of Professor Glyn Harman, she returned to Turku where she is an Academy Research Fellow.[3][5][6]

Personal life[edit]

Kaisa Matomäki is married to Dr Pekka Matomäki, who is also a mathematician specializing in applied mathematics. They have three children. Currently they live in Lieto, close to Turku. [7]


  1. ^ Hartnett, Kevin (July 20, 2017), "Kaisa Matomäki Dreams of Primes", Quanta Magazine
  2. ^ "Kaisa Matomaki and Maksym Radziwill SASTRA-Ramanujan Award for 2016". SASTRA University. SASTRA University, Thanjavur, India. Retrieved 14 April 2017.
  3. ^ a b "Matomäki and Radziwill to receive 2016 SASTRA Ramanujan Prize" (PDF). Centre de Recherches Matthematiques, Universite de Montreal. Retrieved 14 April 2017.
  4. ^ Dunne, Edward (October 20, 2018), "Break on Through", Beyond Reviews: Inside MathSciNet, American Mathematical Society
  5. ^ Curriculum vitae. "Matomäki, Kaisa Sofia" (PDF). Retrieved 14 April 2017.
  6. ^ "Dr Kaisa Matomäki, awarded 2016 Sastra Ramanujan Prize". Royal Holloway, University of London. Retrieved 14 April 2017.
  7. ^ "Kaisa Matomäki teki vallankumouksellisen matemaattisen löydön luvuista, joita on tutkittu jo antiikin Kreikassa". Helsingin Sanomat. HS Tiede. Retrieved 28 February 2019.

External links[edit]