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On the Usage of Deterministic (Related-Key) Truncated Differentials and Multidimensional Linear Approximations for SPN Ciphers

open access: greenIACR Transactions on Symmetric Cryptology, 2020
Among the few works realising the search of truncated differentials (TD) and multidimensional linear approximations (MDLA) holding for sure, the optimality of the distinguisher should be confirmed via an exhaustive search over all possible input ...
Ling Sun   +3 more
doaj   +5 more sources

Complete approximation by symmetrized and perturbed generalized logistic activated multidimensional convolutions in positive linear framework [PDF]

open access: hybridRevista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas
Abstract In this work are studied in detail the multivariate symmetrized and perturbed generalized logistic activated convolution type operators of three types. This is done by the method of positive linear operators. Their alternative approximation properties are established by the quantitative convergence to the unit operator using the ...
George A. Anastassiou
exaly   +4 more sources

Structural and Statistical Analysis of Multidimensional Linear Approximations of Random Functions and Permutations

open access: hybridIEEE Transactions on Information Theory, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tomer Ashur, Mohsin Khan, Kaisa Nyberg
  +9 more sources

Piecewise-Linear Approximations of Multidimensional Functions [PDF]

open access: closedJournal of Optimization Theory and Applications, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ruth Misener, Christodoulos A. Floudas
openalex   +4 more sources

Convergence and rate of approximation for linear integral operators inBVφ-spaces in multidimensional setting

open access: closedJournal of Mathematical Analysis and Applications, 2008
The authors introduce the space \(BV^{\varphi}(\mathbb{R}^N)\) of functions of bounded \(\varphi\)-variation in the sense of Tonelli and the \(\varphi\)-modulus of smoothness \(\omega_{\varphi}(f,\delta)\) for the functions \(f\) defined on \(\mathbb{R}^N\).
Laura Angelonı, Gianluca Vıntı
  +5 more sources

Lagged effect of temperature and rainfall on malaria incidence in Colombia (2013-2023): An approach with Bayesian spatiotemporal adjustment. [PDF]

open access: yesPLOS Global Public Health
Malaria remains a major public health challenge in Colombia, with a significant increase in cases in recent years. Climate variables-particularly temperature and rainfall-are key drivers of malaria transmission, yet their lagged, non-linear effects ...
Juan David Gutiérrez
doaj   +2 more sources

Fourth-order approximations at first time level, linear stability analysis and the numerical solution of multidimensional second-order nonlinear hyperbolic equations in polar coordinates

open access: closedJournal of Computational and Applied Mathematics, 1998
Three-level implicit difference schemes of \(O(k^{4} + k^{2}h^{2} + h^{4})\), where \(k\) and \(h\) are grid sizes in time and space, respectively, are proposed for the numerical solution of one, two, and three nonlinear wave equations in polar coordinates. The authors discuss also a fourth-order approximation at the first time level for a more general
R. K. Mohanty   +2 more
openalex   +2 more sources

Exact method to solve of linear heat transfer problems [PDF]

open access: yesE3S Web of Conferences, 2021
When approximating multidimensional partial differential equations, the values of the grid functions from neighboring layers are taken from the previous time layer or approximation.
Abdullayev Akmaljon   +2 more
doaj   +1 more source

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