Affine invariant conditions for a class of differential polynomial cubic systems
In this article the affine invariant criteria constructed in terms of algebraic polynomials with coefficients $\tilde a \in \mathcal R^{20}$ for a class of cubic systems are established.
Cristina Bujac
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Polynomial Invariants for Affine Programs [PDF]
We exhibit an algorithm to compute the strongest polynomial (or algebraic) invariants that hold at each location of a given affine program (i.e., a program having only non-deterministic (as opposed to conditional) branching and all of whose assignments are given by affine expressions). Our main tool is an algebraic result of independent interest: given
Hrushovski, Ehud +3 more
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Skew RSK dynamics: Greene invariants, affine crystals and applications toq-Whittaker polynomials
AbstractIterating the skew RSK correspondence discovered by Sagan and Stanley in the late 1980s, we define deterministic dynamics on the space of pairs of skew Young tableaux$(P,Q)$. We find that these skew RSK dynamics display conservation laws which, in the picture of Viennot’s shadow line construction, identify generalizations of Greene invariants ...
Imamura, Takashi +2 more
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A Simple Affine-Invariant Spline Interpolation over Triangular Meshes
Given a triangular mesh, we obtain an orthogonality-free analogue of the classical local Zlámal–Ženišek spline procedure with simple explicit affine-invariant formulas in terms of the normalized barycentric coordinates of the mesh triangles.
László L. Stachó
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Every locally characterized affine-invariant property is testable [PDF]
Let F = F_p for any fixed prime p >= 2. An affine-invariant property is a property of functions on F^n that is closed under taking affine transformations of the domain.
Bhattacharyya, Arnab +4 more
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AN AFFINE INDEX POLYNOMIAL INVARIANT OF VIRTUAL KNOTS [PDF]
This paper describes a polynomial invariant of virtual knots that is defined in terms of an integer labeling of the virtual knot diagram. This labeling is seen to derive from an essentially unique structure of affine flat biquandle for flat virtual diagrams.
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Testing Low Complexity Affine-Invariant Properties [PDF]
Invariance with respect to linear or affine transformations of the domain is arguably the most common symmetry exhibited by natural algebraic properties.
Bhattacharyya, Arnab +2 more
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A Characterization of Locally Testable Affine-Invariant Properties via Decomposition Theorems [PDF]
Let $\mathcal{P}$ be a property of function $\mathbb{F}_p^n \to \{0,1\}$ for a fixed prime $p$. An algorithm is called a tester for $\mathcal{P}$ if, given a query access to the input function $f$, with high probability, it accepts when $f$ satisfies ...
Bhattacharyya A., Král' D.
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An Elementary Construction of Modified Hamiltonians and Modified Measures of 2D Kahan Maps [PDF]
We show how to construct in an elementary way the invariant of the KHK discretisation of a cubic Hamiltonian system in two dimensions. That is, we show that this invariant is expressible as the product of the ratios of affine polynomials defining the ...
Giorgio Gubbiotti +2 more
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Lower bounds for constant query affine-invariant LCCs and LTCs [PDF]
Affine-invariant codes are codes whose coordinates form a vector space over a finite field and which are invariant under affine transformations of the coordinate space.
Bhattacharyya, Arnab, Gopi, Sivakanth
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