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Top guys in computer science research

Site containing info on top research people in computer science and their work

This contains a list of bigwigs in computer science research with h index above 40. H ndex indicatets the number of times their papers are cited by other researchers. It is a prestigious qualification

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Filed under: education

Great Mathematicians

Johannes Kepler Carl Friedrich Gauss Leibniz Isaac Newton Pascal Leonhard Euler Srinivasa Ramanujam Joseph Fourier

and more

Filed under: legends

Carl Friedrich Gauss

Johann Carl Friedrich Gauss (Gauß) (April 30, 1777 – February 23, 1855) was a legendary German mathematician, astronomer and physicist with a very wide range of contributions; he is considered to be one of the leading mathematicians of all time. (His name rhymes with “house”, and is sometimes spelled Gauß in German.)

Early years
Gauss was born in Braunschweig, Duchy of Brunswick-Lüneburg (now part of Germany) as only son of lower-class uneducated parents. According to legend, while in elementary school, his teacher tried to occupy pupils by making them add up the (whole) numbers from 1 to 100. Shortly thereafter, to the astonishment of all, the young Gauss produced the correct answer, having realized that pairwise addition of terms from opposite ends of the list yielded identical intermediate sums: 1+100=101, 2+99=101, 3+98=101, etc., for a total sum of 50 × 101 = 5050. (see: summation)

Gauss earned a scholarship and in college, he independently rediscovered several important theorems; his breakthrough occurred in 1796 when he was able to show that any regular polygon, each of whose odd factors are distinct Fermat primes, can be constructed by ruler and compass alone, thereby adding to work started by classical Greek mathematicians. Gauss was so pleased by this result that he requested that a regular 17-gon be inscribed on his tombstone.

Gauss was the first to prove the fundamental theorem of algebra; in fact, he produced four entirely different proofs for this theorem over his lifetime, clarifying the concept of complex number considerably along the way.

Middle years
Gauss also made important contributions to number theory with his 1801 book Disquisitiones arithmeticae, which contained a clean presentation of modular arithmetic and the first proof of the law of quadratic reciprocity.

He had been supported by a stipend from the Duke of Brunswick, but he did not appreciate the insecurity of this arrangement and also did not believe mathematics to be important enough to deserve support; he therefore aimed for a position in astronomy, and in 1807 he was appointed professor of astronomy and director of the astronomical observatory in Göttingen.

In 1809, Gauss published a major work about the motion of celestial bodies. Among other things, he introduced the gaussian gravitational constant. It also contains an influential treatment of the method of least squares, a procedure used in all sciences to this day to minimize the impact of measurement error. He was able to prove the correctness of the method under the assumption of normally distributed errors; see Gauss-Markov theorem; see also Gaussian. The method had been described earlier by Adrien-Marie Legendre in 1805, but Gauss claimed that he had been using it since 1795.

Gauss discovered the possibility of non-Euclidean geometries but never published it. His friend Farkos Wolfgang Bolyai had tried in vain for many years to prove the parallel postulate from Euclid’s other axioms of geometry and failed. Bolyai’s son, János Bolyai, rediscovered non-Euclidean geometry in the 1820s; his work was published in 1832. Later, Gauss tried to determine whether the physical world is in fact Euclidean by measuring out huge triangles.

In 1818, Gauss started a geodesic survey of the state of Hanover, work which later lead to the development of the normal distribution for describing measurement errors and an interest in differential geometry and his theorema egregrium establishing an important property of the notion of curvature.

Later years, death, and afterwards

In 1831, a fruitful collaboration with the physics professor Wilhelm Weber developed, leading to results about magnetism, the discovery of Kirchhoff’s laws in electricity and the construction of a primitive telegraph.

He died in Göttingen, Hanover (now Germany) in 1855 and is interred in the cemetery Albanifriedhof there.

From 1989 until the end of 2001, his portrait and a normal distribution curve was featured on the German ten-mark banknote.

Personal life
Although Gauss never worked as a professor of mathematics and disliked teaching, several of his students turned out to be influential mathematicians, among them Richard Dedekind and Bernhard Riemann.

Gauss was deeply religious and conservative. He supported monarchy and opposed Napoleon whom he saw as an outgrowth of revolution. Gauss’ personal life was overshadowed by the early death of his beloved first wife, Johanna Osthoff, in 1809, soon followed by the death of one child, Louis. Gauss plunged into a depression from which he never fully recovered. He married again, to Friederica Wilhelmine Waldeck (Minna), but the second marriage does not seem to have been very happy. When his second wife died in 1831 after long illness, one of his daughters, Therese, took over the household and cared for Gauss until the end of his life. His mother lived in his house from 1812 until her death in 1839. He rarely if ever collaborated with other mathematicians and was considered aloof and austere by many.

Gauss had six children, three by each wife. With Johnanna (1780-1809), his children were Joseph (1806-1873), Wilhelmina (1808-1846) and Louis (1809-1810). Of all of Gauss’ children, Wilhelmina was said to have come closest to his talent, but regrettably, she died young. With Minna Waldeck, he had three children: Eugene (1811-1896), Wilhelm (1813-1879) and Therese (1816-1864). Eugene emigrated to the United States about 1832 after a falling out with his father, eventually settling in St. Charles, Missouri, where he became a well respected member of the community. Wilhelm came to settle in Missouri somewhat later, starting as a farmer and later becoming wealthy in the shoe business in St. Louis. Therese kept house for Gauss until his death, after which she married.

G. Waldo Dunnington was a life-long student of Gauss. He wrote many articles, and a biography: Carl Frederick Gauss: Titan of Science. This book was re-issued in 2003, after having been out of print for almost 50 years.

Other Links : http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Gauss.html

http://en.wikipedia.org/wiki/Carl_Friedrich_Gauss

Filed under: legends

DVG

Early life

DVG was born in the year 1887 in Mulabagilu taluk of Kolar district in the Indian state of Karnataka. DVG completed his primary school education in Kannada in the year 1898. He also attained basic education in English apart from learning Sanskrit on own interest. Later he continued his education in Mysore from the Maharaja high school. Even though DVG did not pass matriculation exam (10th Standard), he had discontinued formal education after matriculation, his essays were selected as chapters for Graduation text books and PhD thesis. He had vast knowledge in these areas:

  • Veda, Vedanta, BrahmaSutra, DharmaSutra
  • Sanskrit, Kannada, and other Indian languages.
  • Political situation of Karnataka
  • Ramayana and Mahabharata
  • Engineering (was assistant of Sir. M. Vishveshwaraiah, who engineered the K.R.S Dam, which was the largest Dam in Asia at that time)
  • Freedom fighters (Had been associated with Mahatma Gandhi and Lokamanya Tilak)
  • Western Literature (has translated several Shakespeare plays and other Greek plays to Kannada)
  • Islamic literature (Umarana osage, a translation of poems of Omar Khayyam in Kannada)

His Mankuthimmana Kagga is considered a Nobel prize winning material, if it had been written in English. The greatness of this work is that—it makes the reader see himself through the poems, to interpret the thoughts of the poet in his own way. The philosophy hidden in these short 4 liners is suited for any section of the society regardless of their religion, status, qualification etc. Basically it is for the entire humanity, such is the vastness and depth of DVG’s most of the literary works. He was closely associated with the Gokale institute of Public Affairs, Bangalore. Sri Nittoor Srinivasa Rao, The then Chief Justice of Karnataka, Sri Masti Venkatesa Iyengar, Literary Genius, Prof.V.T.Srinivasan, The then Principal of Vijaya College, Bangalore were some of his close associates.

DVG died on 7 October 1975.

[Source : Wiki ]

References  : http://en.wikipedia.org/wiki/Mankuthimmana_Kagga

Filed under: legends

aphorism2

  • Any man’s finest hour is when he has worked his heart out for a good cause and lies exhausted in the field of battle
  • When you want something, all universe conspires in helping you to achieve it – Paul Coelho, The alchemist
  • To BE is To DO
  • Sometimes you’re ahead, sometimes you’re behind. The race is long and, in the end, it’s only with yourself!
  • Start from where you are, with whatever you have. — G. W. Carver
  • If you wait to do everything until you’re sure it’s right, you’ll probably never do much of anything
  • Life is far more exciting when you have to fight for everything . The easier you succeed, the boring it becomes ..
  • Love each other with genuine affection, and take delight in honoring each other.
  • Nothing in this universe is isolated. Everything has effect on every other thing in this world. Life can never be lived alone. Life is life because it is lives in company of others. So, we better keep vigil on all that we do or the way we act for it shall affect every other person in the world.
  • When you learn, teach. When you get, give.” ~Maya Angelou
  • The secret to a rich life is having more beginnings than endings ~ anon

Filed under: quotes, wisdom, , ,