310 research outputs found
Power sums in hyperbolic Pascal triangles
In this paper, we describe a method to determine the power sum of the
elements of the rows in the hyperbolic Pascal triangles corresponding to
with . The method is based on the theory of linear
recurrences, and the results are demonstrated by evaluating the power
sum in the range .Comment: 13 pages, 1 figure
Point Counts of D_k and Some A_k and E_k Integer Lattices Inside Hypercubes
Regular integer lattices are characterized by k unit vectors that build up
their generator matrices. These have rank k for D-lattices, and are
rank-deficient for A-lattices, for E_6 and E_7. We count lattice points inside
hypercubes centered at the origin for all three types, as if classified by
maximum infinity norm in the host lattice. The results assume polynomial format
as a function of the hypercube edge length.Comment: Merged chapters 9 and 10, and added Table 5 and Conjecture 2
Summations of Linear Recurrent Sequences
We give an extension of Sister Celine's method of proving hypergeometric sum
identities that allows it to handle a larger variety of input summands. We then
apply this to several problems. Some give new results, and some reprove already
known results in an automated way
Sums of squares of binomial coefficients, with applications to Picard-Fuchs equations
For a fixed integer N, and fixed numbers b_1,...,b_N, we consider sequences,
the nth term (a_n) of which is the sum of the squares of the terms in the
expansion of (b_1 + ... + b_N)^n. In the case all b_i=1, we give a formula for
a recurrence relation for the a_n. Otherwise we give an algorithm for finding a
recurrence relation. As an application, we give the Picard-Fuchs equations for
certain families of elliptic curves.Comment: 20 page
Generating functions for finite sums involving higher powers of binomial coefficients: Analysis of hypergeometric functions including new families of polynomials and numbers
The origin of this study is based on not only explicit formulas of finite
sums involving higher powers of binomial coefficients, but also explicit
evaluations of generating functions for this sums. It should be emphasized that
this study contains both new results and literature surveys about some of the
related results that have existed so far. With the aid of hypergeometric
function, generating functions for a new family of the combinatorial numbers,
related to finite sums of powers of binomial coefficients, are constructed. By
using these generating functions, a number of new identities have been obtained
and at the same time previously well-known formulas and identities have been
generalized. Moreover, on this occasion, we identify new families of
polynomials including some families of well-known numbers such as Bernoulli
numbers, Euler numbers, Stirling numbers, Franel numbers, Catalan numbers,
Changhee numbers, Daehee numbers and the others, and also for the polynomials
such as the Legendre polynomials, Michael Vowe polynomial, the Mirimanoff
polynomial, Golombek type polynomials, and the others. We also give both
Riemann and -adic integral representations of these polynomials. Finally, we
give combinatorial interpretations of these new families of numbers,
polynomials and finite sums of the powers of binomial coefficients. We also
give open questions for ordinary generating functions for these numbers.Comment: 36 page
Calculations relating to some special Harmonic numbers
We report on the results of a computer search for primes which divide an
Harmonic number with small
Identities in character tables of
In the classic "Concrete Math", by Graham, Patashnik and Knuth, it is stated
that "The numbers in Pascal's triangle satisfy, practically speaking,
infinitely many identities, so it is not too surprising that we can find some
surprising relationships by looking closely." The aim of this note is to
indicate that a similar statement seems to hold for the character tables of the
symmetric groups . Just as important, it is a case-study in using a
computer algebra system to prove deep identities, way beyond the ability of
mere humans. This article is accomanied by a Maple pacgage, Sn, and ample
output, avaialble from the webpage
http://www.math.rutgers.edu/~zeilberg/mamarim/mamarimhtml/sn.html .Comment: 9 page
On a family of recurrences that includes the Fibonacci and the Narayana recurrences
We survey and prove properties a family of recurrences bears in relation to
integer representations, compositions, the Pascal triangle, sums of digits, Nim
games and Beatty sequences.Comment: 18 page
The Filbert Matrix
A Filbert matrix is a matrix whose (i,j) entry is 1/F_(i+j-1), where F_n is
the nth Fibonacci number. The inverse of the n by n Filbert matrix resembles
the inverse of the n by n Hilbert matrix, and we prove that it shares the
property of having integer entries. We prove that the matrix formed by
replacing the Fibonacci numbers with the Fibonacci polynomials has entries
which are integer polynomials. We also prove that certain Hankel matrices of
reciprocals of binomial coefficients have integer entries, and we conjecture
that the corresponding matrices based on Fibonomial coefficients have integer
entries. Our method is to give explicit formulae for the inverses.Comment: 9 pages; submitted to The Fibonacci Quarterl
On the binomial interpolated triangles
The binomial interpolated transform of a sequence is a generalization of the
well-known binomial transform. We examine a Pascal-like triangle, on which a
binomial interpolated transform works between the left and right diagonals,
focusing on binary recurrences. We give the sums of the elements in rows and in
rising diagonals, further we define two special classes of these arithmetical
triangles.Comment: 16 pages, 8 figure
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