Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Parcial de Combinatoria Algebraica Marzo 4, 2003
 

Summary:  Parcial de Combinatoria Algebraica
Marzo 4, 2003



Problemas

1. Decimos que una permutaci'on a1. .a.nes alternante si a1 < a2 > a3 < a4 > . *
*...Sea En

el n'umero de permutaciones alternantes de [n].


(a) Demuestre que _ !
Xn n
2En+1 = EkEn-k.
k=0 k

(b) Concluya que
X xn

  

Source: Ardila, Federico - Department of Mathematics, San Francisco State University

 

Collections: Mathematics