Package cc.redberry.rings.poly.univar

Class DistinctDegreeFactorization

java.lang.Object

cc.redberry.rings.poly.univar.DistinctDegreeFactorization

public final class DistinctDegreeFactorization
extends Object

Distinct-degree factorization of univariate polynomials over finite fields.

Since:

1.0

Method Summary

Modifier and Type	Method	Description
static PolynomialFactorDecomposition<UnivariatePolynomialZp64>	DistinctDegreeFactorization(UnivariatePolynomialZp64 poly)	Performs distinct-degree factorization for square-free polynomial poly.
static <Poly extends IUnivariatePolynomial<Poly>> PolynomialFactorDecomposition<Poly>	DistinctDegreeFactorization(Poly poly)	Performs distinct-degree factorization for square-free polynomial poly.
static PolynomialFactorDecomposition<UnivariatePolynomialZp64>	DistinctDegreeFactorizationPlain(UnivariatePolynomialZp64 poly)	Performs distinct-degree factorization for square-free polynomial poly using plain incremental exponents algorithm.
static PolynomialFactorDecomposition<UnivariatePolynomialZp64>	DistinctDegreeFactorizationPrecomputedExponents(UnivariatePolynomialZp64 poly)	Performs distinct-degree factorization for square-free polynomial poly using plain incremental exponents algorithm with precomputed exponents.
static <Poly extends IUnivariatePolynomial<Poly>> PolynomialFactorDecomposition<Poly>	DistinctDegreeFactorizationShoup(Poly poly)	Performs distinct-degree factorization for square-free polynomial poly using Victor Shoup's baby step / giant step algorithm.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

DistinctDegreeFactorizationPlain

public static PolynomialFactorDecomposition<UnivariatePolynomialZp64> DistinctDegreeFactorizationPlain(UnivariatePolynomialZp64 poly)

Performs distinct-degree factorization for square-free polynomial poly using plain incremental exponents algorithm.

In the case of not square-free input, the algorithm works, but the resulting d.d.f. may be incomplete.

Parameters:

poly - the polynomial

Returns:

distinct-degree decomposition of poly

DistinctDegreeFactorizationPrecomputedExponents

public static PolynomialFactorDecomposition<UnivariatePolynomialZp64> DistinctDegreeFactorizationPrecomputedExponents(UnivariatePolynomialZp64 poly)

Performs distinct-degree factorization for square-free polynomial poly using plain incremental exponents algorithm with precomputed exponents.

In the case of not square-free input, the algorithm works, but the resulting d.d.f. may be incomplete.

Parameters:

poly - the polynomial

Returns:

distinct-degree decomposition of poly

DistinctDegreeFactorizationShoup

public static <Poly extends IUnivariatePolynomial<Poly>> PolynomialFactorDecomposition<Poly> DistinctDegreeFactorizationShoup(Poly poly)

Performs distinct-degree factorization for square-free polynomial poly using Victor Shoup's baby step / giant step algorithm.

In the case of not square-free input, the algorithm works, but the resulting d.d.f. may be incomplete.

Parameters:

poly - the polynomial

Returns:

distinct-degree decomposition of poly

DistinctDegreeFactorization

public static PolynomialFactorDecomposition<UnivariatePolynomialZp64> DistinctDegreeFactorization(UnivariatePolynomialZp64 poly)

Performs distinct-degree factorization for square-free polynomial poly.

In the case of not square-free input, the algorithm works, but the resulting d.d.f. may be incomplete.

Parameters:

poly - the polynomial

Returns:

distinct-degree decomposition of poly

DistinctDegreeFactorization

public static <Poly extends IUnivariatePolynomial<Poly>> PolynomialFactorDecomposition<Poly> DistinctDegreeFactorization(Poly poly)

Performs distinct-degree factorization for square-free polynomial poly.

In the case of not square-free input, the algorithm works, but the resulting d.d.f. may be incomplete.

Parameters:

poly - the polynomial

Returns:

distinct-degree decomposition of poly