Package edu.jas.ps

Class OrderedPairlist<C extends RingElem<C>>


  • public class OrderedPairlist<C extends RingElem<C>>
    extends java.lang.Object
    Pair list management. Implemented using MultiVarPowerSeries, TreeMap and BitSet.
    • Field Detail

      • pairlist

        protected final java.util.TreeMap<ExpVector,​java.util.LinkedList<Pair<C extends RingElem<C>>>> pairlist
      • red

        protected final java.util.ArrayList<java.util.BitSet> red
      • oneInGB

        protected boolean oneInGB
      • useCriterion4

        protected boolean useCriterion4
      • useCriterion3

        protected boolean useCriterion3
      • putCount

        protected int putCount
      • remCount

        protected int remCount
      • moduleVars

        protected final int moduleVars
      • logger

        private static final org.apache.logging.log4j.Logger logger
    • Constructor Detail

      • OrderedPairlist

        public OrderedPairlist​(MultiVarPowerSeriesRing<C> r)
        Constructor for OrderedPairlist.
        Parameters:
        r - power series factory.
      • OrderedPairlist

        public OrderedPairlist​(int m,
                               MultiVarPowerSeriesRing<C> r)
        Constructor for OrderedPairlist.
        Parameters:
        m - number of module variables.
        r - power series factory.
    • Method Detail

      • toString

        public java.lang.String toString()
        toString.
        Overrides:
        toString in class java.lang.Object
      • put

        public int put​(MultiVarPowerSeries<C> p)
        Put one power Series to the pairlist and reduction matrix.
        Parameters:
        p - power series.
        Returns:
        the index of the added power series.
      • put

        public int put​(java.util.List<MultiVarPowerSeries<C>> F)
        Put all power series in F to the pairlist and reduction matrix.
        Parameters:
        F - power series list.
        Returns:
        the index of the last added power series.
      • removeNext

        public Pair<C> removeNext()
        Remove the next required pair from the pairlist and reduction matrix. Apply the criterions 3 and 4 to see if the S-power-series is required.
        Returns:
        the next pair if one exists, otherwise null.
      • hasNext

        public boolean hasNext()
        Test if there is possibly a pair in the list.
        Returns:
        true if a next pair could exist, otherwise false.
      • getList

        public java.util.List<MultiVarPowerSeries<C>> getList()
        Get the list of power series.
        Returns:
        the power series list.
      • putCount

        public int putCount()
        Get the number of power series put to the pairlist.
        Returns:
        the number of calls to put.
      • remCount

        public int remCount()
        Get the number of required pairs removed from the pairlist.
        Returns:
        the number of non null pairs delivered.
      • putOne

        public int putOne​(MultiVarPowerSeries<C> one)
        Put to ONE-power-series to the pairlist.
        Parameters:
        one - power series. (no more required)
        Returns:
        the index of the last power series.
      • putOne

        public int putOne()
        Put the ONE-power-series to the pairlist.
        Returns:
        the index of the last power-series.
      • criterion3

        public boolean criterion3​(int i,
                                  int j,
                                  ExpVector eij)
        GB criterion 3.
        Returns:
        true if the S-power-series(i,j) is required.