Results 71 to 80 of about 120 (120)

Continued fractions using a Laguerre digraph interpretation of the Foata-Zeilberger bijection and its variants [PDF]

open access: yes
In the combinatorial theory of continued fractions, the Foata-Zeilberger bijection and its variants have been extensively used to derive various continued fractions enumerating several (sometimes infinitely many) simultaneous statistics on permutations ...
Deb, Bishal
core   +1 more source

Melham's conjecture on odd power sums of fibonacci numbers

open access: yes, 2016
Ozeki and Prodinger showed that the odd power sum of the first several consecutive Fibonacci numbers of even order is equal to a polynomial evaluated at a certain Fibonacci number of odd order. We prove that this polynomial and its derivative both vanish
Xie, Matthew H.Y.   +2 more
core  

Invariant cubature formulae for spheres and balls by combinatorial methods

open access: yes, 2008
. Invariant cubature formulae for a class of weight functions on the simplex T d are derived using combinatorial methods, extending the formulae in [Grundmann and Möller, SIAM J. Numer Anal., 15 (1978), pp.
Sangwoo Heo, Yuan Xu
core  

Skeletal generalizations of chip-firing games, parking functions, and Dyck paths

open access: yes
For \(0\leq k\leq n-1\), we introduce a family of \(k\)-skeletal paths which are counted by the \(n\)th Catalan number for each \(k\), and specialize to Dyck paths when \(k=n-1\).
Backman, Spencer   +5 more
core   +1 more source

Generalizations of two identities of Guo and Yang

open access: yes, 2018
In this paper, we provide generalizations of two identities of Guo and Yang [2] for the q-binomial coefficients. This approach allows us to derive new convolution identities for the complete and elementary symmetric functions.
Merca, Mircea
core  

and

open access: yes, 2010
. A centrosymmetric permutation is one which is invariant under the reversecomplement operation, or equivalently one whose associated standard Young tableaux under the Robinson-Schensted algorithm are both invariant under the Schützenberger involution ...
Matteo Silimbani, Mark F. Flanagan
core  

Free fermionic probability theory and k-theoretic schubert calculus

open access: yesForum of Mathematics, Sigma
For each of the four particle processes given by Dieker and Warren, we show the n-step transition kernels are given by the (dual) (weak) refined symmetric Grothendieck functions up to a simple overall factor. We do so by encoding the particle dynamics as
Shinsuke Iwao   +2 more
doaj   +1 more source

Bounded Littlewood identity related to alternating sign matrices

open access: yesForum of Mathematics, Sigma
An identity that is reminiscent of the Littlewood identity plays a fundamental role in recent proofs of the facts that alternating sign triangles are equinumerous with totally symmetric self-complementary plane partitions and that alternating sign ...
Ilse Fischer
doaj   +1 more source

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