Eksempler på brug af Functional equations på Engelsk og deres oversættelser til Dansk
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He wrote two major papers on functional equations in 1815 and 1816.
Other topics to which Lukacs made major contributions include characterisations of distributions,stability of characterisation results and functional equations.
He studied functional equations of the sphere and ellipsoid before Fredholm.
Ramanujan worked out the Riemann series, the elliptic integrals,hypergeometric series and functional equations of the zeta function.
Pincherle worked on functional equations and functional analysis.
He worked both on ordinary differential equations and on partial differential equations studying abelian integrals,automorphic functions, and functional equations.
He also worked on functional equations and on such practical problems as the filtration of groundwater.
He also worked closely with Jean-Pierre Serre, leading to important results on the l-adic representations attached to modular forms,and the conjectural functional equations of L-functions.
In 1823 Abel published papers on functional equations and integrals in a new scientific journal started up by Hansteen.
Thus, his research on the Earth's crust lead to investigations on well-posed Cauchy problems for parabolic equations andto the construction of a method for solving general functional equations of Volterra type.
He defended his habilitation thesis in 1936 on Functional equations of Volterra type and their applications to mathematical physics.
Of the American Mathematical Society sometime president, and editor of the Transactions; always wise counsellor and leader; creative mathematician and successful investigator in the theory of functions, and in the theories of differential anddifference equations and of functional equations; for these eminent services in mathematics, and especially for your important researches concerning functional equations and analytic continued fractions.
Among the important texts he wrote were Functional equations and their applications(1918), The logarithmic potential(1927), and Mathematical Introduction to economics 1930.
He was awarded his doctorate in 1924 for a thesis on functional equations in which he established an addition theorem for Fuchsian functions.
It investigates the use of some functional equations in order to calculate the differentials of logarithmic and trigonometrical functions as well as the binomial expansion and Taylor formula.
Other work of Ostrowski was on the Cauchy functional equation, the Fourier integral formula, Cauchy-Frullani integrals, and the Euler- Maclaurin formula.
Riemann studied the convergence of the series representation of the zeta function and found a functional equation for the zeta function.
For example he produced a beautiful solution to the functional equation f( f(x)) ex which he published in 1950, and the deep understanding he achieved of the strange properties of manifolds without a countable basis of neighbourhoods between 1958 and 1964.
He had earlier than this in 1922,written papers on the functional equation of Dedekind 's zeta functions of algebraic number fields and in 1921/23 made contributions to additive questions such as Waring type problems for algebraic number fields.
Hilbert modular functions, Dedekind zeta functions, arithmetical notions and methods, elliptic modular forms of level N, algebraic functions,Dirichlet series with functional equation, Hecke-operators Tn, and physics where he made contributions to the kinetic theory of gases.
Schoeneberg describes Hecke's contributions to a number of topics which he lists as follows: Hilbert modular functions, Dedekind zeta functions, arithmetical notions and methods, elliptic modular forms of level N, algebraic functions,Dirichlet series with functional equation, Hecke-operators Tn, and physics where he made contributions to the kinetic theory of gases.
The paper is a published version of a talk given by Schoeneberg at a conference organised in Hamburg to celebrate the 100th anniversary of Hecke's birthday in 1987. Schoeneberg describes Hecke's contributions to a number of topics which he lists as follows: Hilbert modular functions, Dedekind zeta functions, arithmetical notions and methods, elliptic modular forms of level N, algebraic functions,Dirichlet series with functional equation, Hecke-operators Tn, and physics where he made contributions to the kinetic theory of gases.
He worked on relativity theory andafter writing his dissertation Relation of Maxwell's Aether Equations to Functional Theory he sent a copy to Einstein.