A NOTE ON THE SMARANDACHE DIVISOR SEQUENCES

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A NOTE ON THE SMARANDACHE DIVISOR SEQUENCES (Amarnath Murthy ,S.E. (E &T), Well Logging Services,Oil And Natural Gas Corporation Ltd. ,Sabarmati, Ahmedbad, India- 380005.)

ABSTRACT:

In

[1]

we

define

SMARANDACHE

FACTOR

PARTITION FUNCTION (SFP) , as follows: Let

CX1, CX2 , CX3 , . . . CX r be a set of r natural numbers

and P1, P2, P3 , .. 路Pr be

arbitrarily chosen distinct primes then

F(cx1' CX2 , CX3 , ... cx r ) called the Smarandache Factor Partition of (CX1, CX2 , CX3 ,.

. cx r ) is defined as the number of ways in which the

number a1

N

a2

a3

ar Pr

=

could be expressed as the

product of its' divisors. For simplicity, we denote F(cx1 , CX2 , CX3 , . CX r ) = F (N) ,where a1

N

ar

a3

0路.2

P1 P2 P3

=

an

Pr

Pn

and Pr is the rth prime. P1 =2, P2 = 3

etc.

In [2] we have defined SMARANDACHE DIVISOR SEQUENCES as follows

I d(x) =

Pn = { x

P2 = { x P3

I

={x I

P4 = { x

I

n}

,d(x)

= number of divisors

of n.

x is a prime} x

= p2,

P is a prime}

x = p3 or x = P1P2 , P ,P1 ,P2 are primes} 284


Let F1 be a SFP of N. Let

\f'F1 = { yl d(y) = N } , generated by

the SFP F1 of N. It has been shown in Ref. [3]

that each SFP

generates some elements of \f' or P n . Here each SFP generates i n fin it ely man y e I e men t s \fIF'(N)

,

0

f Pn

.

S i mil a r Iy \f' F 1

, \fI F2

,

'-:If F 3

,...

are defined. It is evident that all these Fk'S are disjoint

and also

THEOREM(7.1) There are F'(N) disjoint and exhaustive subsets in which P N

can be decomposed.

PROOF: Let 0

E

PN

,

and let it be expressed in canonical form

as follows ar

e= Then

d( e)

Hence

eE

Again if

eE

\fIFk

Pr

= for some k where Fk is given by

\.f'Fs, and

eE

~Ft

then from unique factorisation

theorem Fs and F t are identical SFPs of N.

REFERENCES: [1] "Amarnath Murthy" , 'Generalization Of Partition Function, Introducing 'Smarandache Factor Partition', SNJ, Vol. 11, No. 1-2-3, 2000. [2] . "Amarnath Murthy" , 'Some New Smarandache Sequences, Functions And Partitions', SNJ, Vol. 11, No. 1-2-3,2000. [3] [4]

"Amarnath Murthy" Some more Ideas on SFPS. SNJ, Vol. 11, No. 1-2-3, 2000. The Florentine Smarandache " Special Collection, Archives of American Mathematics, Centre for American History, University of Texas at Austin, USA. I

'

II

285


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