نتایج جستجو برای: cat map

تعداد نتایج: 229005  

2001
Pär Kurlberg Zeév Rudnick

In the past few years,much attention has been devoted to the behavior of eigenfunctions of classically chaotic quantum systems. One aspect of this topic concerns their value distribution and specifically their extreme values (see [Be], [AS], [S1], [IS], [HeR], [ABST]). Our aim is to explore this topic for one of the best-studied models in quantum chaotic dynamics—the quantized cat map (see [HB]...

2012
George Makris Ioannis Antoniou

We implement Cryptography with Chaos following and extending the original program of Shannon with 3 selected Torus Automorphisms, namely the Baker Map, the Horseshoe Map and the Cat Map. The corresponding algorithms and the software (chaos_cryptography) were developed and applied to the encryption of picture as well as text in real time. The maps and algorithms may be combined as desired, creat...

Journal: :International Mathematics Research Notices 2010

2016
Gang Li LaDeana W. Hillier Robert A. Grahn Aleksey V. Zimin Victor A. David Marilyn Menotti-Raymond Rondo Middleton Steven Hannah Sher Hendrickson Alex Makunin Stephen J. O’Brien Pat Minx Richard K. Wilson Leslie A. Lyons Wesley C. Warren William J. Murphy

High-resolution genetic and physical maps are invaluable tools for building accurate genome assemblies, and interpreting results of genome-wide association studies (GWAS). Previous genetic and physical maps anchored good quality draft assemblies of the domestic cat genome, enabling the discovery of numerous genes underlying hereditary disease and phenotypes of interest to the biomedical science...

2017
Ashwak Mahmood Alabaichi

Techniques in encrypting digital images play a crucial role in the prevention of unauthorized access. This paper focuses on color image encryption and decryption using 3D chaotic map with AES key dependent S-Boxes. It contains four major parts which are Exclusive X-or forward and backward, 3D Logistic Map, 3D Chebyshev map, and 2D Arnold Cat Map, and Dynamic S-box of AES. Here, Exclusive X-or i...

Journal: :Intelligent Automation and Soft Computing 2022

This article introduces a new cancellable multi-biometric system based on the combination of selective encryption method and deep-learning-based fusion technology. The biometric face image is treated with an automatic segmentation algorithm (Viola-Jones), selected eye XORed PRNG (Pseudo Random Number Generator) matrix. output array used to create primary template. process changes histogram imag...

Journal: :Topology and its Applications 2022

Using the surgery we prove following: Theorem 0.1 Let f : M → N be a normal map of degree one between closed smooth manifolds with being ( r − 1 ) -connected, ⩾ . If satisfies inequality dim ⁡ ⩽ 2 cat 3 , then

2003
Guanrong Chen Yaobin Mao Charles K. Chui

Encryption of images is different from that of texts due to some intrinsic features of images such as bulk data capacity and high redundancy, which are generally difficult to handle by traditional methods. Due to the exceptionally desirable properties of mixing and sensitivity to initial conditions and parameters of chaotic maps, chaos-based encryption has suggested a new and efficient way to d...

2003

Qualitative patterns of the non-equilibrium behavior of coupled consumer/resource systems, formulated as a standard circle map, are explored. Patterns of demographic locking, reflected as a "devil's staircase", are observed in simulations of the MacArthur consumer/resource equations. As coupling strength increases the steps in the staircase become broader, eventually overlapping to form a chaot...

2010
Rafael de la Llave

We study numerically the regularity of Arnold tongues corresponding to Diophantine rotation numbers of circle maps at the edge of validity of KAM theorem. This serves as a good test for the numerical stability of two different algorithms. We conclude that Arnold tongues are only finitely differentiable and we also provide a renormalization group explanation of the borderline regularity. Further...

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