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Harald J. W. Mueller-Kirsten
Harald J.W. Mueller-Kirsten (born 1935) is a German theoretical physicist specializing in Theoretical particle physics and Mathematical physics. Education and career Müller-Kirsten obtained the B.Sc. (First Class Honours) in 1957 and the Ph.D. in 1960 from the University of Western Australia in Perth, where his doctoral advisor was Robert Balson Dingle. Thereafter he was postdoc at the Ludwig Maximilians University in Munich (Institute of F. Bopp) and obtained the habilitation there in 1971. Müller-Kirsten was an assistant professor at the American University of Beirut in 1967, NATO-Fellow at the Lawrence Radiation Laboratory in Berkeley in 1970, and Max-Kade-Foundation Fellow at SLAC, Stanford in 1974–75. In 1972 he was appointed Wissenschaftlicher Rat and Professor (H2) at the University of Kaiserslautern, then there in 1976 University Professor (C2) and in 1995 University Professor (C3). Research achievements # Asymptotic expansions of Mathieu functions, spheroid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halle (Saale)
Halle (Saale), or simply Halle (; from the 15th to the 17th century: ''Hall in Sachsen''; until the beginning of the 20th century: ''Halle an der Saale'' ; from 1965 to 1995: ''Halle/Saale'') is the largest city of the Germany, German States of Germany, state of Saxony-Anhalt, the fifth most populous city in the area of former East Germany after (East Berlin, East) Berlin, Leipzig, Dresden and Chemnitz, as well as the List of cities in Germany by population, 31st largest city of Germany, and with around 239,000 inhabitants, it is slightly more populous than the state capital of Magdeburg. Together with Leipzig, the largest city of Saxony, Halle forms the polycentric Leipzig-Halle conurbation. Between the two cities, in Schkeuditz, lies Leipzig/Halle Airport, Leipzig/Halle International Airport. The Leipzig-Halle conurbation is at the heart of the larger Central German Metropolitan Region. Halle lies in the south of Saxony-Anhalt, in the Leipzig Bay, the southernmost part of the N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamé Function
In mathematics, a Lamé function, or ellipsoidal harmonic function, is a solution of Lamé's equation, a second-order ordinary differential equation. It was introduced in the paper . Lamé's equation appears in the method of separation of variables applied to the Laplace equation in elliptic coordinates. In some special cases solutions can be expressed in terms of polynomials called Lamé polynomials. The Lamé equation Lamé's equation is :\frac + (A+B\weierp(x))y = 0, where ''A'' and ''B'' are constants, and \wp is the Weierstrass elliptic function. The most important case is when B\weierp(x) = - \kappa^2 \operatorname^2x , where \operatorname is the elliptic sine function, and \kappa^2 = n(n+1)k^2 for an integer ''n'' and k the elliptic modulus, in which case the solutions extend to meromorphic functions defined on the whole complex plane. For other values of ''B'' the solutions have branch points. By changing the independent variable to t with t=\operatorname x, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Kendall (poet)
Thomas Henry Kendall (18 April 18391 August 1882), was an Australian author and bush poet, who was particularly known for his poems and tales set in a natural environment. He appears never to have used his first name — his three volumes of verse were all published under the name of "Henry Kendall". Early life Kendall was born in a settler's hut by Yackungarrah Creek in Yatte Yattah near Ulladulla, New South Wales, twin son (with Basil Edward Kendall) of Basil Kendall (1809–1852) and his wife Matilda Kendall, née McNally c. 1815, and baptised in the Presbyterian church. His father was the second son of Rev. Thomas Kendall, an Englishman who came to Sydney in 1809 and five years later went as a missionary to New Zealand, before settling in New South Wales in 1827. Kendall has also been known as Henry Clarence Kendall, for reasons unknown (however at the age of 5, his parents moved to the Clarence River area of northern New South Wales). Journalist and fellow poet A. G. Ste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daya Shankar Kulshreshtha
Daya Shankar Kulshreshtha (born December, 1951) is an Indian theoretical physicist, specializing in formal aspects of quantum field theory, string theory, supersymmetry, supergravity and superstring theory, Dirac's instant-form and light-front quantization of field theories and D-brane actions. His work on the models of gravity focuses on the studies of charged compact boson stars and boson shells. Education and career Kulshreshtha obtained B.Sc. (1969) and M.Sc. (1971) degrees from Jiwaji University, Gwalior. He received his Ph.D. in 1979 from the University of Delhi, under the supervision of R. P. Saxena. He worked as a postdoctoral researcher at the University of Kaiserslautern (1982–1984). He then held a five-year position of a UGC-Research Scientist of the University Grants Commission of India at the University of Delhi (1986–1991) followed by a five-year position at the University of Kaiserslautern, Germany (1990–1994) before being appointed a professor at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usha Kulshreshtha
Usha Kulshreshtha (born July, 1964) is an Indian theoretical physicist, specializing in the Dirac's instant-form and light-front quantization of quantum field theory models, string theory models and D-brane actions using the Hamiltonian, path integral and BRST quantization methods, constrained dynamics, construction of gauge theories and their quantizaton under gauge-fixing as well as study of boson stars, and wormholes in general relativity and gravity theory. Education and career Kulshreshtha obtained her B.Sc. (1983) and M.Sc. (1985) degrees from Jiwaji University, Gwalior. She received her Ph.D. (Dr. rer. nat.) in 1993 from the University of Kaiserslautern, Germany, under the supervision of Harald J. W. Mueller-Kirsten. She held a five-year position at the department of physics and astrophysics, University of Delhi as a research associate, of CSIR, followed by a two years position as the senior research associate of CSIR at the same institute. Following an appointment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gauge Theory
In physics, a gauge theory is a type of field theory in which the Lagrangian (and hence the dynamics of the system itself) does not change (is invariant) under local transformations according to certain smooth families of operations (Lie groups). The term ''gauge'' refers to any specific mathematical formalism to regulate redundant degrees of freedom in the Lagrangian of a physical system. The transformations between possible gauges, called ''gauge transformations'', form a Lie group—referred to as the ''symmetry group'' or the ''gauge group'' of the theory. Associated with any Lie group is the Lie algebra of group generators. For each group generator there necessarily arises a corresponding field (usually a vector field) called the ''gauge field''. Gauge fields are included in the Lagrangian to ensure its invariance under the local group transformations (called ''gauge invariance''). When such a theory is quantized, the quanta of the gauge fields are called '' gauge bosons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantization (physics)
In physics, quantization (in British English quantisation) is the systematic transition procedure from a classical understanding of physical phenomena to a newer understanding known as quantum mechanics. It is a procedure for constructing quantum mechanics from classical mechanics. A generalization involving infinite degrees of freedom is field quantization, as in the "quantization of the electromagnetic field", referring to photons as field " quanta" (for instance as light quanta). This procedure is basic to theories of atomic physics, chemistry, particle physics, nuclear physics, condensed matter physics, and quantum optics. Historical overview In 1901, when Max Planck was developing the distribution function of statistical mechanics to solve ultraviolet catastrophe problem, he realized that the properties of blackbody radiation can be explained by the assumption that the amount of energy must be in countable fundamental units, i.e. amount of energy is not continuous b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
String Theory
In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these strings propagate through space and interact with each other. On distance scales larger than the string scale, a string looks just like an ordinary particle, with its mass, charge, and other properties determined by the vibrational state of the string. In string theory, one of the many vibrational states of the string corresponds to the graviton, a quantum mechanical particle that carries the gravitational force. Thus, string theory is a theory of quantum gravity. String theory is a broad and varied subject that attempts to address a number of deep questions of fundamental physics. String theory has contributed a number of advances to mathematical physics, which have been applied to a variety of problems in black hole physics, early universe cosmology, nuclear physics, and conde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S-matrix
In physics, the ''S''-matrix or scattering matrix relates the initial state and the final state of a physical system undergoing a scattering process. It is used in quantum mechanics, scattering theory and quantum field theory (QFT). More formally, in the context of QFT, the ''S''-matrix is defined as the unitary matrix connecting sets of asymptotically free particle states (the ''in-states'' and the ''out-states'') in the Hilbert space of physical states. A multi-particle state is said to be ''free'' (non-interacting) if it transforms under Lorentz transformations as a tensor product, or ''direct product'' in physics parlance, of ''one-particle states'' as prescribed by equation below. ''Asymptotically free'' then means that the state has this appearance in either the distant past or the distant future. While the ''S''-matrix may be defined for any background (spacetime) that is asymptotically solvable and has no event horizons, it has a simple form in the case of the Minkowsk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamé Equation , occasionally misspelled ''lamé''
{{disambig, surname ...
Lamé may refer to: *Lamé (fabric), a clothing fabric with metallic strands *Lamé (fencing), a jacket used for detecting hits * Lamé (crater) on the Moon * Ngeté-Herdé language, also known as Lamé, spoken in Chad *Peve language, also known as Lamé after its chief dialect, spoken in Chad and Cameroon *Lamé, a couple of the Masa languages of West Africa *Amy Lamé (born 1971), British radio presenter *Gabriel Lamé (1795–1870), French mathematician See also * Lamé curve, geometric figure *Lamé parameters * Lame (other) *Lame (kitchen tool) A lame () is a double-sided blade that is used to slash the tops of bread loaves in baking. A lame is used to ''score'' (also called ''slashing'' or ''docking'') bread just before the bread is placed in the oven. Often the blade's cutting edge wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Line Integral
In mathematics, a line integral is an integral where the function to be integrated is evaluated along a curve. The terms ''path integral'', ''curve integral'', and ''curvilinear integral'' are also used; ''contour integral'' is used as well, although that is typically reserved for line integrals in the complex plane. The function to be integrated may be a scalar field or a vector field. The value of the line integral is the sum of values of the field at all points on the curve, weighted by some scalar function on the curve (commonly arc length or, for a vector field, the scalar product of the vector field with a differential vector in the curve). This weighting distinguishes the line integral from simpler integrals defined on intervals. Many simple formulae in physics, such as the definition of work as W=\mathbf\cdot\mathbf, have natural continuous analogues in terms of line integrals, in this case \textstyle W = \int_L \mathbf(\mathbf)\cdot d\mathbf, which computes the work d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
