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Revision as of 09:32, 11 January 2011
Hadamard may refer to:
- Jacques Hadamard (1865–1963), a French mathematician, whose name is associated with the following topics in mathematics:
- Differential geometry
- Hadamard space, a geodesically complete metric space of non-positive curvature
- Cartan-Hadamard theorem, a result on the topology of non-positively curved manifolds
- Differential equations and dynamical systems
- Hadamard's method of descent, a method of solving partial differential equations by reducing dimensions
- Hadamard parametrix construction, a method of solving second order partial differential equations
- Hadamard's dynamical system, a type of chaotic dynamical system
- Complex analysis and convexity
- Hadamard three-lines theorem, an inequality for complex analytic functions
- Hadamard three-circle theorem, an inequality for complex analytic functions
- Hadamard factorization theorem, a method of factorizing an entire function
- Ostrowski–Hadamard gap theorem, a result on the analytic continuation of lacunary power series
- Hermite–Hadamard inequality, lower and upper bounds for the integral of a convex function.
- Transform calculus
- Hadamard transform, an example of a generalized class of Fourier transforms
- Fast Walsh–Hadamard transform, an efficient algorithm to compute the Hadamard transform
- Theory of matrices
- Hadamard matrix, a square matrix whose entries are either +1 or −1 and whose rows are mutually orthogonal
- Hadamard code, a system used for signal error detection and correction based on Hadamard matrices
- Hadamard's inequality, an upper bound on the absolute value of the determinant of a complex matrix.
This disambiguation page lists articles associated with the title Hadamard.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: