The pseudo-Hadamard transform is a reversible transformation of a bit string that provides cryptographic diffusion. See Hadamard transform. The bit string...

The Hadamard transform (also known as the Walsh–Hadamard transform, Hadamard–Rademacher–Walsh transform, Walsh transform, or Walsh–Fourier transform) is...

Twofish borrows some elements from other designs; for example, the pseudo-Hadamard transform (PHT) from the SAFER family of ciphers. Twofish has a Feistel...

dictionary. PHT can stand for: Philippine Time Pulmonary hypertension Pseudo-Hadamard transform Prefix Hash Tree Polyhexahydrotriazine Postmenopausal hormone...

the diffusion layer: a novel cryptographic component termed a pseudo-Hadamard transform (PHT). (The PHT was also later used in the Twofish cipher.) There...

efficient basis function representation. Using linear Hadamard spectral tests (see Hadamard transform), the first of these sequences will be found to be...

convolution theorem for the inverse Fourier transform: Here, " ⋅ {\displaystyle \cdot } " represents the Hadamard product, and " ∗ {\displaystyle *} " represents...

beyond 3 dB. Cohn and Lempel showed the relationship of the MLS to the Hadamard transform. This relationship allows the correlation of an MLS to be computed...

Provably secure cryptographic hash function • Proxy re-encryption • Pseudo-Hadamard transform • Pseudonymity • Pseudorandom function • Pseudorandom number generator...

H(q); // Hadamard Transform Not(q); // Invert q CPhase(pi, q); // Rotate if q=1111.. !Not(q); // undo inversion !H(q); // undo Hadamard Transform } defines...

inconvenient geometries. By choosing an appropriate mapping, the analyst can transform the inconvenient geometry into a much more convenient one. For example...

the derivative instead of the integral. The Hadamard fractional integral was introduced by Jacques Hadamard and is given by the following formula, D a...

(specifically, a Möbius transform if the domain is the unit hypercube { 0 , 1 } n {\displaystyle \{0,1\}^{n}} , and a Walsh-Hadamard-Fourier transform if the domain...

transmissions. Zadoff–Chu sequences are an improvement over the Walsh–Hadamard codes used in UMTS because they result in a constant-amplitude output signal...

Einstein manifold Holonomy Gauss–Bonnet theorem Hopf–Rinow theorem Cartan–Hadamard theorem Myers theorem Rauch comparison theorem Morse index theorem Synge...

investigation into the connection between the fast Hadamard transform and the normal distribution, since the transform employs just addition and subtraction and...

used to study the large-scale geometry of geodesics in Hadamard spaces and in particular Hadamard manifolds (simply connected complete Riemannian manifolds...

function to all complex numbers, and Seeley (1967) extended this to elliptic pseudo-differential operators A on compact Riemannian manifolds. So for such operators...

through using Hadamard gates, followed by implementing f {\displaystyle f} as a quantum transform, followed finally by a quantum Fourier transform. Due to this...

Of the three conditions for a well-posed problem suggested by Jacques Hadamard (existence, uniqueness, and stability of the solution or solutions) the...

(or vectors of a Hadamard matrix). The receiver again measures the amplitudes for all 64 vectors (here comes the Hadamard Transform) and chooses the greatest...

VP7. The discrete cosine transform (DCT) on 4×4 blocks and the Walsh–Hadamard transform (WHT) serve as basic frequency transforms. A maximum of three frames...

of real numbers.) This is the Hadamard transform of the function f {\displaystyle f} , which is the Fourier transform in the group Z 2 n {\displaystyle...

Press. p. 94. ISBN 0-521-00551-5. Shuangzhe Liu; Gõtz Trenkler (2008). "Hadamard, Khatri-Rao, Kronecker and other matrix products". Int J Information and...

frictionlessly on a surface of constant negative curvature, called "Hadamard's billiards". Hadamard was able to show that all trajectories are unstable, in that...

quantization level (q index 0) an additional 4×4-block encoded Walsh–Hadamard transformed (WHT) residue signal. In order to be seekable, raw VP9 bitstreams...

similarity-transformed Hamiltonian H ¯ {\displaystyle {\bar {H}}} can be explicitly written down using Hadamard's formula in Lie algebra, also called Hadamard's...

Lists of integrals Integral transform Leibniz integral rule Definitions Antiderivative Integral (improper) Riemann integral Lebesgue integration Contour...