Vera Nikolaevna Kublanovskaya (''née'' Totubalina; November 21, 1920 – February 21, 2012 ) was a
Russian
Russian(s) refers to anything related to Russia, including:
*Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries
*Rossiyane (), Russian language term for all citizens and peo ...
mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems.
Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change.
History
On ...
noted for her work on developing computational methods for solving spectral problems of algebra. She proposed the
QR algorithm
In numerical linear algebra, the QR algorithm or QR iteration is an eigenvalue algorithm: that is, a procedure to calculate the eigenvalues and eigenvectors of a matrix. The QR algorithm was developed in the late 1950s by John G. F. Francis and by ...
for computing
eigenvalues and eigenvectors
In linear algebra, an eigenvector () or characteristic vector of a linear transformation is a nonzero vector that changes at most by a scalar factor when that linear transformation is applied to it. The corresponding eigenvalue, often denote ...
in 1961, which has been named as one of the ten most important
algorithm
In mathematics and computer science, an algorithm () is a finite sequence of rigorous instructions, typically used to solve a class of specific problems or to perform a computation. Algorithms are used as specifications for performing ...
s of the twentieth century. This algorithm was proposed independently by the English computer scientist
John G.F. Francis
John G.F. Francis (born 1934) is an English computer scientist, who in 1961 published the QR algorithm for computing the eigenvalues and eigenvectors of matrices, which has been named as one of the ten most important algorithms of the twentieth ...
in 1959.
Early life
Kublanovskaya was born in November 1920 in Krokhona, a village near
Belozersk
Belozersk (russian: Белозе́рск), known as Beloozero (russian: Белоозеро, label=none) until 1777, is a town and the administrative center of Belozersky District in Vologda Oblast, Russia, located on the southern bank of Lake Be ...
in
Vologda Oblast
Vologda Oblast ( rus, Вологодская область, p=vəlɐˈɡotskəjə ˈobləsʲtʲ, r=Vologodskaya oblast, ) is a federal subject of Russia (an oblast). Its administrative center is Vologda. The Oblast has a population of 1,202,44 ...
, Russia. She was born in a farming and fishing family as one of nine siblings. She died at the age of 91 years old in February 2012.
Education
Kublanovskaya started her tertiary education in 1939 at the Gertzen Pedagogical Institute in Leningrad.
There, she was encouraged to pursue a career in mathematics. She moved on to study mathematics at Leningrad State University in 1945 and graduated in 1948. Following her graduation, she joined the Leningrad Branch of the Steklov Mathematical Institute of the USSR Academy of Sciences. She remained there for 64 years of her life.
In 1955, she got a first doctorate degree on the application of analytic continuation to numeric methods. In 1972 she obtained a secondary doctorate on the use of orthogonal transformations to solve algebraic problems.
In October 1985, she was awarded an honorary doctorate at Umeå University, Sweden, with which she has collaborated.
Scientific works
During her first PhD, she joined
Leonid Kantorovich
Leonid Vitalyevich Kantorovich ( rus, Леони́д Вита́льевич Канторо́вич, , p=lʲɪɐˈnʲit vʲɪˈtalʲjɪvʲɪtɕ kəntɐˈrovʲɪtɕ, a=Ru-Leonid_Vitaliyevich_Kantorovich.ogg; 19 January 19127 April 1986) was a Sovie ...
's group that was working on developing a universal computer language in the USSR. Her task was to select and classify matrix operations that are useful in numerical linear algebra.
Her subsequent works have been foundational in furthering mathematical research and software development. She is mentioned in the Book of Proofs
Publications
* On some algorithms for the solution of the complete eigenvalue problem
* On a method of solving the complete eigenvalue problem for a degenerate matrix
* Methods and algorithms of solving spectral problems for polynomial and rational matrices
* To solving problems of algebra for two-parameter matrices. V
* To solving problems of algebra for two-parameter matrices. IX
Notes
References
* .
* .
* .
External links
MacTutor History of Mathematics biography
{{DEFAULTSORT:Kublanovskaya, Vera
Russian mathematicians
Women mathematicians
1920 births
2012 deaths
20th-century women scientists
Soviet mathematicians
Soviet women mathematicians