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P Kesava Menon
Puliyakot Keshava Menon (1917 – 22 October 1979) was an Indian mathematician best known as Director of the Joint Cipher Bureau. His sudden demise on 22 October 1979, ended active research in the areas of number theory, combinatorics, algebra and cryptography. Early life P. Kesava Menon was born (1917) in Alathur, which is now part of the Palakkad District of Kerala state in India. His mother, Devaky Amma, hailed from the Kunissery Puliyakot family and, as per custom, Kesava Menon took his family name from his mother. His father, A K Krishnan Unni Kartha, hailed from Aiyiloor in the Palghat district. Menon grew up on Alathur under his uncle's supervision and hence his primary and high school education was conducted in modest surrounding at Alathur itself. Higher education As was the custom for bright students from landed families those days, Menon had to travel to Madras city and join the Madras Christian College for his higher studies. There, he completed his MA in Math ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 One of the earliest known mathematicians were Thales of Miletus (c. 624–c.546 BC); he has been hailed as the first true mathematician and the first known individual to whom a mathematical discovery has been attributed. He is credited with the first use of deductive reasoning applied to geometry, by deriving four corollaries to Thales' Theorem. The number of known mathematicians grew when Pythagoras of Samos (c. 582–c. 507 BC) established the Pythagorean School, whose doctrine it was that mathematics ruled the universe and whose motto was "All is number". It was the Pythagoreans who coined the term "mathematics", and with whom the study of mathematics for its own sake begins. The first woman mathematician recorded by history was Hypati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regular Hadamard Matrix
In mathematics a regular Hadamard matrix is a Hadamard matrix whose row and column sums are all equal. While the order of a Hadamard matrix must be 1, 2, or a multiple of 4, regular Hadamard matrices carry the further restriction that the order be a square number. The excess, denoted ''E''(''H''), of a Hadamard matrix ''H'' of order ''n'' is defined to be the sum of the entries of ''H''. The excess satisfies the bound , ''E''(''H''), ≤ ''n''3/2. A Hadamard matrix attains this bound if and only if it is regular. Parameters If ''n'' = 4''u''2 is the order of a regular Hadamard matrix, then the excess is ±8''u''3 and the row and column sums all equal ±2''u''. It follows that each row has 2''u''2 ± ''u'' positive entries and 2''u''2 ∓ ''u'' negative entries. The orthogonality of rows implies that any two distinct rows have exactly ''u''2 ± ''u'' positive entries in common. If ''H'' is interpreted as the incidence matr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academic Staff Of Annamalai University
An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of secondary or tertiary higher learning (and generally also research or honorary membership). The name traces back to Plato's school of philosophy, founded approximately 385 BC at Akademia, a sanctuary of Athena, the goddess of wisdom and skill, north of Athens, Greece. Etymology The word comes from the ''Academy'' in ancient Greece, which derives from the Athenian hero, ''Akademos''. Outside the city walls of Athens, the gymnasium was made famous by Plato as a center of learning. The sacred space, dedicated to the goddess of wisdom, Athena, had formerly been an olive grove, hence the expression "the groves of Academe". In these gardens, the philosopher Plato conversed with followers. Plato developed his sessions into a method of teaching philosophy and in 387 BC, established what is known today as the Old Academy. By extension, ''academia'' has come to mean the accumulation, dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1979 Deaths
Events January * January 1 ** United Nations Secretary-General Kurt Waldheim heralds the start of the ''International Year of the Child''. Many musicians donate to the ''Music for UNICEF Concert'' fund, among them ABBA, who write the song ''Chiquitita'' to commemorate the event. ** The United States and the People's Republic of China establish full Sino-American relations, diplomatic relations. ** Following a deal agreed during 1978, France, French carmaker Peugeot completes a takeover of American manufacturer Chrysler's Chrysler Europe, European operations, which are based in United Kingdom, Britain's former Rootes Group factories, as well as the former Simca factories in France. * January 7 – Cambodian–Vietnamese War: The People's Army of Vietnam and Vietnamese-backed Kampuchean United Front for National Salvation, Cambodian insurgents announce the fall of Phnom Penh, Cambodia, and the collapse of the Pol Pot regime. Pol Pot and the Khmer Rouge retreat west to an area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1917 Births
Events Below, the events of World War I have the "WWI" prefix. January * January 9 – WWI – Battle of Rafa: The last substantial Ottoman Army garrison on the Sinai Peninsula is captured by the Egyptian Expeditionary Force's Desert Column. * January 10 – Imperial Trans-Antarctic Expedition: Seven survivors of the Ross Sea party were rescued after being stranded for several months. * January 11 – Unknown saboteurs set off the Kingsland Explosion at Kingsland (modern-day Lyndhurst, New Jersey), one of the events leading to United States involvement in WWI. * January 16 – The Danish West Indies is sold to the United States for $25 million. * January 22 – WWI: United States President Woodrow Wilson calls for "peace without victory" in Germany. * January 25 ** WWI: British armed merchantman is sunk by mines off Lough Swilly (Ireland), with the loss of 354 of the 475 aboard. ** An anti- prostitution drive in San Francisco occurs, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Palakkad District
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arithmetic Function
In number theory, an arithmetic, arithmetical, or number-theoretic function is for most authors any function ''f''(''n'') whose domain is the positive integers and whose range is a subset of the complex numbers. Hardy & Wright include in their definition the requirement that an arithmetical function "expresses some arithmetical property of ''n''". An example of an arithmetic function is the divisor function whose value at a positive integer ''n'' is equal to the number of divisors of ''n''. There is a larger class of number-theoretic functions that do not fit the above definition, for example, the prime-counting functions. This article provides links to functions of both classes. Arithmetic functions are often extremely irregular (see table), but some of them have series expansions in terms of Ramanujan's sum. Multiplicative and additive functions An arithmetic function ''a'' is * completely additive if ''a''(''mn'') = ''a''(''m'') + ''a''(''n'') for all natural numbers ''m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint Cipher Bureau
The Joint Cipher Bureau is an agency of the Indian armed forces responsible for signals intelligence and cryptanalysis and coordinating similar activities and operations of military intelligence agencies.It under Ministry of Defence (India) and it's employees are all civilian like Military Engineer Services (India) mostly attached to defence organization. The Joint Cipher Bureau works closely with the IB and R&AW. It is responsible for cryptanalysis and encryption of sensitive data. The inter-services Joint Cipher Bureau has primary responsibility for cryptology and SIGINT Signals intelligence (SIGINT) is intelligence-gathering by interception of ''signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly used in communication ( ..., providing coordination and direction to the other military service organizations with similar mission. Most current equipment providing tactical intelligence i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annamalai University
, logo = CampusmapofAU.jpg , image = Annamalai University logo.png , image_size = 225px , motto = "With Courage and Faith" , established = , type = State University (Government) , endowment = , administrative_staff = , faculty = , president = , principal = , rector = , chancellor = Governor of Tamil Nadu , vice_chancellor = R. M. Kathiresan , head_label = , head = , academic_staff = 2,281 , students = 32,480 , undergrad = 23,256 , postgrad = 8,067 , doctoral = 998 , city = Chidambaram, Tamil Nadu , country = India , coordinates = , campus = Rural, , campus_size = , languag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Madras
The University of Madras (informally known as Madras University) is a public university, public State university (India), state university in Chennai, Tamil Nadu, India. Established in 1857, it is one of the oldest and among the most prestigious universities in India, incorporated by an act of the Council of India, Legislative Council of India under the British India, British government. It is a collegiate university, collegiate research university and has six campuses in the city: Chepauk, Marina Beach, Marina, Guindy, Taramani, Maduravoyal and Chetpet. It offers more than 230 courses under 87 academic departments of post-graduate teaching and research grouped under 18 schools, covering diverse areas such as sciences, social sciences, humanities, management and medicine along with 121 affiliated colleges and 53 approved research institutions. The university houses the national centres for advanced research in nanotechnology, photonics and neurotoxicity. In addition, it has thre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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