edu.jas.fd

Class SolvableQuotientRing<C extends GcdRingElem<C>>

java.lang.Object

edu.jas.fd.SolvableQuotientRing<C>

All Implemented Interfaces:

AbelianGroupFactory<SolvableQuotient<C>>, ElemFactory<SolvableQuotient<C>>, MonoidFactory<SolvableQuotient<C>>, QuotPairFactory<GenPolynomial<C>,SolvableQuotient<C>>, RingFactory<SolvableQuotient<C>>, java.io.Serializable

public class SolvableQuotientRing<C extends GcdRingElem<C>>
extends java.lang.Object
implements RingFactory<SolvableQuotient<C>>, QuotPairFactory<GenPolynomial<C>,SolvableQuotient<C>>

SolvableQuotient ring factory based on GenPolynomial with RingElem interface. Objects of this class are immutable.

Author:

Heinz Kredel

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
SolvableSyzygyAbstract<C>	engine Syzygy engine of the factory.
GenSolvablePolynomialRing<C>	ring Solvable polynomial ring of the factory.

Constructor Summary

Constructors

Constructor and Description
SolvableQuotientRing(GenSolvablePolynomialRing<C> r) The constructor creates a SolvableQuotientRing object from a GenSolvablePolynomialRing.

Method Summary

Modifier and Type	Method and Description
java.math.BigInteger	characteristic() Characteristic of this ring.
SolvableQuotient<C>	copy(SolvableQuotient<C> c) Copy SolvableQuotient element c.
SolvableQuotient<C>	create(GenPolynomial<C> n) Create from numerator.
SolvableQuotient<C>	create(GenPolynomial<C> n, GenPolynomial<C> d) Create from numerator, denominator pair.
boolean	equals(java.lang.Object b) Comparison with any other object.
SolvableQuotient<C>	fromInteger(java.math.BigInteger a) Get a SolvableQuotient element from a BigInteger value.
SolvableQuotient<C>	fromInteger(long a) Get a SolvableQuotient element from a long value.
java.util.List<SolvableQuotient<C>>	generators() Get a list of the generating elements.
SolvableQuotient<C>	getONE() Get the one element.
SolvableQuotient<C>	getZERO() Get the zero element.
int	hashCode() Hash code for this quotient ring.
boolean	isAssociative() Query if this ring is associative.
boolean	isCommutative() Query if this ring is commutative.
boolean	isField() Query if this ring is a field.
boolean	isFinite() Is this structure finite or infinite.
GenSolvablePolynomialRing<C>	pairFactory() Factory for base elements.
SolvableQuotient<C>	parse(java.io.Reader r) Parse SolvableQuotient from Reader.
SolvableQuotient<C>	parse(java.lang.String s) Parse SolvableQuotient from String.
SolvableQuotient<C>	random(int n) SolvableQuotient random.
SolvableQuotient<C>	random(int k, int l, int d, float q) Generate a random quotient.
SolvableQuotient<C>	random(int n, java.util.Random rnd) SolvableQuotient random.
java.lang.String	toScript() Get a scripting compatible string representation.
java.lang.String	toString() Get the String representation as RingFactory.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

ring

public final GenSolvablePolynomialRing<C extends GcdRingElem<C>> ring

Solvable polynomial ring of the factory.

engine

public final SolvableSyzygyAbstract<C extends GcdRingElem<C>> engine

Syzygy engine of the factory.

Constructor Detail

SolvableQuotientRing

public SolvableQuotientRing(GenSolvablePolynomialRing<C> r)

The constructor creates a SolvableQuotientRing object from a GenSolvablePolynomialRing.

Parameters:

r - solvable polynomial ring.

Method Detail

pairFactory

public GenSolvablePolynomialRing<C> pairFactory()

Factory for base elements.

Specified by:

pairFactory in interface QuotPairFactory<GenPolynomial<C extends GcdRingElem<C>>,SolvableQuotient<C extends GcdRingElem<C>>>

create

public SolvableQuotient<C> create(GenPolynomial<C> n)

Create from numerator.

Specified by:

create in interface QuotPairFactory<GenPolynomial<C extends GcdRingElem<C>>,SolvableQuotient<C extends GcdRingElem<C>>>

create

public SolvableQuotient<C> create(GenPolynomial<C> n,
                                  GenPolynomial<C> d)

Create from numerator, denominator pair.

Specified by:

create in interface QuotPairFactory<GenPolynomial<C extends GcdRingElem<C>>,SolvableQuotient<C extends GcdRingElem<C>>>

isFinite

public boolean isFinite()

Is this structure finite or infinite.

Specified by:

isFinite in interface ElemFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Returns:

true if this structure is finite, else false.

copy

public SolvableQuotient<C> copy(SolvableQuotient<C> c)

Copy SolvableQuotient element c.

Specified by:

copy in interface ElemFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Parameters:

c -

Returns:

a copy of c.

getZERO

public SolvableQuotient<C> getZERO()

Get the zero element.

Specified by:

getZERO in interface AbelianGroupFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Returns:

0 as SolvableQuotient.

getONE

public SolvableQuotient<C> getONE()

Get the one element.

Specified by:

getONE in interface MonoidFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Returns:

1 as SolvableQuotient.

generators

public java.util.List<SolvableQuotient<C>> generators()

Get a list of the generating elements.

Specified by:

generators in interface ElemFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Returns:

list of generators for the algebraic structure.

isCommutative

public boolean isCommutative()

Query if this ring is commutative.

Specified by:

isCommutative in interface MonoidFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Returns:

true if this ring is commutative, else false.

isAssociative

public boolean isAssociative()

Query if this ring is associative.

Specified by:

isAssociative in interface MonoidFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Returns:

true if this ring is associative, else false.

isField

public boolean isField()

Query if this ring is a field.

Specified by:

isField in interface RingFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Returns:

true.

characteristic

public java.math.BigInteger characteristic()

Characteristic of this ring.

Specified by:

characteristic in interface RingFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Returns:

characteristic of this ring.

fromInteger

public SolvableQuotient<C> fromInteger(java.math.BigInteger a)

Get a SolvableQuotient element from a BigInteger value.

Specified by:

fromInteger in interface ElemFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Parameters:

a - BigInteger.

Returns:

a SolvableQuotient.

fromInteger

public SolvableQuotient<C> fromInteger(long a)

Get a SolvableQuotient element from a long value.

Specified by:

fromInteger in interface ElemFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Parameters:

a - long.

Returns:

a SolvableQuotient.

toString

public java.lang.String toString()

Get the String representation as RingFactory.

Overrides:

toString in class java.lang.Object

toScript

public java.lang.String toScript()

Get a scripting compatible string representation.

Specified by:

toScript in interface ElemFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Returns:

script compatible representation for this ElemFactory.

equals

public boolean equals(java.lang.Object b)

Comparison with any other object.

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Hash code for this quotient ring.

Overrides:

hashCode in class java.lang.Object

random

public SolvableQuotient<C> random(int n)

SolvableQuotient random.

Specified by:

random in interface ElemFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Parameters:

n - such that 0 ≤ v ≤ (2ⁿ-1).

Returns:

a random quotient element.

random

public SolvableQuotient<C> random(int k,
                                  int l,
                                  int d,
                                  float q)

Generate a random quotient.

Parameters:

k - bitsize of random coefficients.

l - number of terms.

d - maximal degree in each variable.

q - density of nozero exponents.

Returns:

a random quotient.

random

public SolvableQuotient<C> random(int n,
                                  java.util.Random rnd)

SolvableQuotient random.

Specified by:

random in interface ElemFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Parameters:

n - such that 0 ≤ v ≤ (2ⁿ-1).

rnd - is a source for random bits.

Returns:

a random quotient element.

parse

public SolvableQuotient<C> parse(java.lang.String s)

Parse SolvableQuotient from String. Syntax: "{ polynomial | polynomial }" or "{ polynomial }" or " polynomial | polynomial " or " polynomial "

Specified by:

parse in interface ElemFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Parameters:

s - String.

Returns:

SolvableQuotient from s.

parse

public SolvableQuotient<C> parse(java.io.Reader r)

Parse SolvableQuotient from Reader.

Specified by:

parse in interface ElemFactory<SolvableQuotient<C extends GcdRingElem<C>>>

Parameters:

r - Reader.

Returns:

next SolvableQuotient from r.