#ifndef CCENT
#define CCENT
extern PermGroup *centralizer(
PermGroup *const G, /* The containing permutation group. */
const Permutation *const e, /* The point set to be stabilized. */
PermGroup *const L, /* A (possibly trivial) known subgroup of the
stabilizer in G of Lambda. (A null pointer
designates a trivial group.) */
const BOOLEAN noPartn, /* If true, suppresses use of ordered
partition based on cycle size. */
const BOOLEAN longCycleOption, /* Always choose next base point in longest
cycle; however, at present, all cycles
of length 5 or greater are treated as
having the same length. */
const BOOLEAN stdRBaseOption) /* Use std base selection algorithm, ignoring
cycle lengths. */
;
extern Permutation *conjugatingElement(
PermGroup *const G, /* The containing permutation group. */
const Permutation *const e, /* One of the elements. */
const Permutation *const f, /* The other element. */
PermGroup *const L_L, /* A (possibly trivial) known subgroup of the
centralizer in G of e. (A null pointer
designates a trivial group.) */
PermGroup *const L_R, /* A (possibly trivial) known subgroup of the
centralizer in G of f. (A null pointer
designates a trivial group.) */
const BOOLEAN noPartn, /* If true, suppresses use of ordered
partition based on cycle size. */
const BOOLEAN longCycleOption, /* Always choose next base point in longest
cycle; however, at present, all cycles
of length 5 or greater are treated as
having the same length. */
const BOOLEAN stdRBaseOption) /* Use std base selection algorithm, ignoring
cycle lengths. */
;
extern PermGroup *groupCentralizer(
PermGroup *const G, /* The containing permutation group. */
const PermGroup *const E, /* The point set to be stabilized. */
PermGroup *const L, /* A (possibly trivial) known subgroup of the
stabilizer in G of Lambda. (A null pointer
designates a trivial group.) */
const Unsigned centPartnCount,
const Unsigned centGenCount)
;
extern Partition *cycleLengthPartn(
const Permutation *const e,
UnsignedS *const cycleLen,
UnsignedS *const cycleStructure)
;
extern Partition *multipleCycleLengthPartn(
const Permutation *const ex[])
;
#endif
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