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DM
1999
79views more  DM 1999»
13 years 10 months ago
A bijective proof of Riordan's theorem on powers of Fibonacci numbers
Let Fk(x) = n=0 Fk n xn . Using the interpretation of Fibonacci numbers in the terms of Morse codes, we give a bijective proof of Riordan's formula (1 - Lkx + (-1)k x2 )Fk(x...
Andrej Dujella
CG
2004
Springer
13 years 10 months ago
Views of Fibonacci dynamics
The Binet formula gives a natural way for Fibonacci numbers to be viewed as a function of a complex variable. We experimentally study the complex dynamics of the Fibonacci numbers...
Clifford A. Reiter
DM
2008
105views more  DM 2008»
13 years 11 months ago
Fibonacci numbers, alternating parity sequences and faces of the tridiagonal Birkhoff polytope
We determine the number of alternating parity sequences that are subsequences of an increasing m-tuple of integers. For this and other related counting problems we find formulas th...
C. M. da Fonseca, E. Marques De Sá
LCC
1994
200views Algorithms» more  LCC 1994»
14 years 3 months ago
Program Extraction from Classical Proofs
We demonstrate program extraction by the Light Dialectica Interpretation (LDI) on a minimal logic proof of the classical existence of Fibonacci numbers. This semi-classical proof ...
Ulrich Berger, Helmut Schwichtenberg