Oscar Buneman
Encyclopedia
Oscar Buneman made advances in science
, engineering
, and mathematics
. Buneman was a pioneer of computational plasma physics and plasma
simulation
.
Upon completion of his Phd with Douglas Hartree
in 1940, Buneman joined Hartree's magnetron research group assisting the development of radar during World War II. They discovered the Buneman-Hartree criteron for the voltage threshold of magnetron operation. After the war Buneman developed theories and simulations of collisionless dissipation of currents, called the Buneman instability. This is an example of anomalous resistivity
or absorption. It is anomalous because the phenomenon does not depend on collisions. Buneman advanced elliptic equation solver methods and their associated applications (as well as for the fast Fourier transform
s).
Oscar Buneman died near Stanford University
.
The computer scientist
Peter Buneman
is his son.
Science
Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe...
, engineering
Engineering
Engineering is the discipline, art, skill and profession of acquiring and applying scientific, mathematical, economic, social, and practical knowledge, in order to design and build structures, machines, devices, systems, materials and processes that safely realize improvements to the lives of...
, and mathematics
Mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...
. Buneman was a pioneer of computational plasma physics and plasma
Plasma (physics)
In physics and chemistry, plasma is a state of matter similar to gas in which a certain portion of the particles are ionized. Heating a gas may ionize its molecules or atoms , thus turning it into a plasma, which contains charged particles: positive ions and negative electrons or ions...
simulation
Simulation
Simulation is the imitation of some real thing available, state of affairs, or process. The act of simulating something generally entails representing certain key characteristics or behaviours of a selected physical or abstract system....
.
Upon completion of his Phd with Douglas Hartree
Douglas Hartree
Douglas Rayner Hartree PhD, FRS was an English mathematician and physicist most famous for the development of numerical analysis and its application to the Hartree-Fock equations of atomic physics and the construction of the meccano differential analyser.-Early life:Douglas Hartree was born in...
in 1940, Buneman joined Hartree's magnetron research group assisting the development of radar during World War II. They discovered the Buneman-Hartree criteron for the voltage threshold of magnetron operation. After the war Buneman developed theories and simulations of collisionless dissipation of currents, called the Buneman instability. This is an example of anomalous resistivity
Resistivity
Electrical resistivity is a measure of how strongly a material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electric charge. The SI unit of electrical resistivity is the ohm metre...
or absorption. It is anomalous because the phenomenon does not depend on collisions. Buneman advanced elliptic equation solver methods and their associated applications (as well as for the fast Fourier transform
Fast Fourier transform
A fast Fourier transform is an efficient algorithm to compute the discrete Fourier transform and its inverse. "The FFT has been called the most important numerical algorithm of our lifetime ." There are many distinct FFT algorithms involving a wide range of mathematics, from simple...
s).
Oscar Buneman died near Stanford University
Stanford University
The Leland Stanford Junior University, commonly referred to as Stanford University or Stanford, is a private research university on an campus located near Palo Alto, California. It is situated in the northwestern Santa Clara Valley on the San Francisco Peninsula, approximately northwest of San...
.
The computer scientist
Computer scientist
A computer scientist is a scientist who has acquired knowledge of computer science, the study of the theoretical foundations of information and computation and their application in computer systems....
Peter Buneman
Peter Buneman
Oscar Peter Buneman FRS, FRSE is a British computer scientist who works in the areas of database systems and database theory.Buneman received his PhD in mathematics from the University of Warwick, in 1970. After that he worked briefly at the University of Edinburgh, followed by a professorship of...
is his son.
Publications
- Buneman, O., "Dissipation of currents in ionized media". Physical Review, 115, 503 (1959).
- Buneman, O., "Time reversible difference procedures". Journal of Computers Physics. 1, 517 (1967).
- Buneman, O., "A compact non-iterative poisson-solver". SUIPR report 294, Stanford University (1969).
- Buneman, O., "Fast numerical procedures for computer experiments on relativistic plasmas, in "Relativistic Plasmas (The Coral Gables Conference)", Benjamin, NY, 1968.
- Buneman, O., "Subgrid resolution of flow and force fields". Journal of Computers Physics. 11, 250 (1973).
- Buneman, O., and et al., "Principles and capabilities of 3d EM particle simulations". Journal of Computers Physics. 38, 1 (1980).
- Buneman, R., and et al., "A tribute to Oscar Buneman - pioneer of plasma simulation". IEEE Transactions on Plasma Science. Vancouver, BC, Canada. ISSN 0093-3813
External links and resources
- Langdon, Bruce, "Remembrances of Oscar Buneman". ICNSP'98.