Results 21 to 30 of about 2,530,049 (324)

Kriging Application in Climatic Element Interpolation A Case Study: Iran Precipitation in 1996.12.16 [PDF]

open access: yesجغرافیا و توسعه, 2008
Interpolation is one of the most important techniques in climatic spatial investigation. These techniques classified based on different criteria. In this paper, it has tried to introduce Kriging interpolation and practical stages as an exact, acute and ...
hosein asakereh
doaj   +1 more source

Bounded Surjective Quadratic Functions over Fnp for MPC-/ZK-/FHE-Friendly Symmetric Primitives

open access: yesIACR Transactions on Symmetric Cryptology, 2023
Motivated by new applications such as secure Multi-Party Computation (MPC), Fully Homomorphic Encryption (FHE), and Zero-Knowledge proofs (ZK), many MPC-, FHE- and ZK-friendly symmetric-key primitives that minimize the< number of multiplications over Fp
Lorenzo Grassi
doaj   +1 more source

Multivariate nonnegative quadratic mappings [PDF]

open access: yesSSRN Electronic Journal, 2003
Consider a closed convex cone \(C\subseteq\mathbb R^m\) defining on \(\mathbb R^m\) the usual cone order and thus a notion of positivity. Given a function \(f:\mathbb R^n\rightarrow \mathbb R^m\) and a domain \(D\subseteq \mathbb R^n,\) the question whether \(f(D)\subseteq C,\) i.e. whether \(f| D\) is nonnegative w.r.t. \(C\) can be difficult.
Zhi-Quan Luo   +2 more
openaire   +5 more sources

Controlling intermediate dynamics in a family of quadratic maps. [PDF]

open access: yesChaos, 2017
The intermediate dynamics of composed one-dimensional maps is used to multiply attractors in phase space and create multiple independent bifurcation diagrams which can split apart.
R. M. da Silva, C. Manchein, M. Beims
semanticscholar   +1 more source

Mating quadratic maps with the modular group II [PDF]

open access: yesInventiones Mathematicae, 2016
In 1994 S. Bullett and C. Penrose introduced the one complex parameter family of (2 : 2) holomorphic correspondences Fa\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \
S. Bullett, L. Lomonaco
semanticscholar   +1 more source

Nicolai maps with four-fermion interactions

open access: yesJournal of High Energy Physics, 2023
Nicolai maps offer an alternative description of supersymmetric theories via nonlinear and nonlocal transformations characterized by the so-called ‘free-action’ and ‘determinant-matching’ conditions.
Lorenzo Casarin   +2 more
doaj   +1 more source

Additivity of Quadratic Maps

open access: yesPublications of the Research Institute for Mathematical Sciences, 1988
The set of observables of a Quantum Mechanical System need only be closed under a "quadratic" product. It is shown that an additive structure of this set (whose existence is less natural) is uniquely determined by this multiplicative structure.
Friedman, Yaakov, Hakeda, Josuke
openaire   +3 more sources

Thurston equivalence for rational maps with clusters [PDF]

open access: yes, 2013
We investigate rational maps with period-one and period-two cluster cycles. Given the definition of a cluster, we show that, in the case where the degree is d and the cluster is fixed, the Thurston class of a rational map is fixed by the combinatorial ...
Thomas Sharland, Sharland, Thomas Joseph
core   +1 more source

Quadratic Maps in Two Variables on Arbitrary Fields

open access: yes, 2021
10 páginasLet F be a field of characteristic different from 2 and 3, and let V be a vector space of dimension 2 over F. The generic classification of homogeneous quadratic maps f: V→V under the action of the linear group of V, is given and efficient ...
Muñoz Masqué, Jaime   +2 more
core   +1 more source

On Solutions of a Quadratic Integral Equation of Urysohn Type [PDF]

open access: yesمجلة التربية والعلم, 2014
In this paper, we investigate the existence of a unique solution on a semi-infinite interval for a quadratic integral equation of Urysohn type in Frechet space using a nonlinear alternative of Leray-Schauder type for contraction maps.
Lamyaa Sadoon
doaj   +1 more source

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