Results 1 to 10 of about 2,551,654 (209)
Two invertible networks for the matrix element method [PDF]
SciPost Physics, 2023 The matrix element method is widely considered the ultimate LHC inference tool for small event numbers. We show how a combination of two conditional generative neural networks encodes the QCD radiation and detector effects without any simplifying ...
Anja Butter, Theo Heimel, Till Martini, Sascha Peitzsch, Tilman Plehn
doaj +4 more sources
Effect of Self-Invertible Matrix on Cipher Hexagraphic Polyfunction [PDF]
Cryptography, 2019 A cryptography system was developed previously based on Cipher Polygraphic Polyfunction transformations, C i × j ( t ) ≡ A i × i t P i × j m o d N where C i × j , P i × j , A i
Sally Lin Pei Ching, Faridah Yunos
doaj +3 more sources
Image Encryption Algorithm Based on the H-Fractal and Dynamic Self-Invertible Matrix. [PDF]
Comput Intell Neurosci, 2019 In this paper, an image encryption algorithm based on the H-fractal and dynamic self-invertible matrix is proposed. The H-fractal diffusion encryption method is firstly used in this encryption algorithm. This method crosses the pixels at both ends of the
Zhang X, Wang L, Niu Y, Cui G, Geng S.
europepmc +2 more sources
Extension problem to an invertible matrix [PDF]
Proceedings of the American Mathematical Society, 1993 The extension problem for rectangular matrices with values in Banach algebra to an invertible square matrix is investigated. For this problem to be solvable for a matrix D , the following condition is necessary: for every maximal ideal m of the algebra ...
V. Tolokonnikov
semanticscholar +2 more sources
Matrix Mappings on the Domains of Invertible Matrices [PDF]
Journal of Function Spaces and Applications, 2013 We focus on sequence spaces which are matrix domains of Banach sequence spaces. We show that the characterization of a random matrix operator , where and are matrix domains with invertible matrices and , can be reduced to the characterization of the ...
Muhammed Altun
doaj +3 more sources
Fractal and Fractional, 2023 The computation of the sign function of a matrix plays a crucial role in various mathematical applications. It provides a matrix-valued mapping that determines the sign of each eigenvalue of a nonsingular matrix.
Lei Shi +4 more
doaj +2 more sources
Characterizations of the group invertibility of a matrix revisited
Demonstratio Mathematica, 2022 A square complex matrix AA is said to be group invertible if there exists a matrix XX such that AXA=AAXA=A, XAX=XXAX=X, and AX=XAAX=XA hold, and such a matrix XX is called the group inverse of AA.
Tian Yongge
doaj +2 more sources
Stochastic stability of Lyapunov exponents and Oseledets splittings for semi-invertible matrix cocycles [PDF]
arXiv, 2013 We establish (i) stability of Lyapunov exponents and (ii) convergence in probability of Oseledets spaces for semi-invertible matrix cocycles, subjected to small random perturbations. The first part extends results of Ledrappier and Young to the semi-invertible setting. The second part relies on the study of evolution of subspaces in the Grassmannian.
Gary Froyland +2 more
arxiv +3 more sources
Non-invertible symmetries and LSM-type constraints on a tensor product Hilbert space [PDF]
SciPost PhysicsWe discuss the exact non-invertible Kramers-Wannier symmetry of 1+1d lattice models on a tensor product Hilbert space of qubits. This symmetry is associated with a topological defect and a conserved operator, and the latter can be presented as a matrix ...
Nathan Seiberg, Sahand Seifnashri, Shu-Heng Shao
doaj +2 more sources
Every invertible matrix is diagonally equivalent to a matrix with distinct eigenvalues
Linear Algebra and its Applications, 2012 AbstractWe show that for every invertible n×n complex matrix A there is an n×n diagonal invertible D such that AD has distinct eigenvalues. Using this result, we affirm a conjecture of Feng, Li, and Huang that an n×n matrix is not diagonally equivalent to a matrix with distinct eigenvalues if and only if it is singular and all its principal minors of ...
Man-Duen Choi +3 more
semanticscholar +3 more sources