Louis W. Shapiro

According to our database, Louis W. Shapiro authored at least 31 papers between 1976 and 2020.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of three.

2020

A Bijection Between the Triangulations of Convex Polygons and Ordered Trees.

Dennis E. Davenport, Louis W. Shapiro, Leon C. Woodson

Integers, 2020

2015

The Boundary of Ordered Trees.

Dennis E. Davenport, Louis W. Shapiro, Lara K. Pudwell, Leon C. Woodson

J. Integer Seq., 2015

2013

Generalized Bessel numbers and some combinatorial settings.

Gi-Sang Cheon, Ji-Hwan Jung, Louis W. Shapiro

Discret. Math., 2013

2012

Combinatorics of Riordan arrays with identical A and Z sequences.

Gi-Sang Cheon, Hana Kim, Louis W. Shapiro

Discret. Math., 2012

The uplift principle for ordered trees.

Gi-Sang Cheon, Louis W. Shapiro

Appl. Math. Lett., 2012

2011

The hitting time subgroup, Lukasiewicz paths and Faber polynomials.

Gi-Sang Cheon, Hana Kim, Louis W. Shapiro

Eur. J. Comb., 2011

The Double Riordan Group.

Dennis E. Davenport, Louis W. Shapiro, Leon C. Woodson

Electron. J. Comb., 2011

2010

The Fine numbers refined.

Gi-Sang Cheon, Sang-Gu Lee, Louis W. Shapiro

Eur. J. Comb., 2010

2009

A generalization of Lucas polynomial sequence.

Gi-Sang Cheon, Hana Kim, Louis W. Shapiro

Discret. Appl. Math., 2009

Riordan group involutions and the Delta-sequence.

Gi-Sang Cheon, Sung-Tae Jin, Hana Kim, Louis W. Shapiro

Discret. Appl. Math., 2009

2008

Protected points in ordered trees.

Gi-Sang Cheon, Louis W. Shapiro

Appl. Math. Lett., 2008

2007

Matrix identities on weighted partial Motzkin paths.

William Y. C. Chen, Nelson Y. Li, Louis W. Shapiro, Sherry H. F. Yan

Eur. J. Comb., 2007

The butterfly decomposition of plane trees.

William Y. C. Chen, Nelson Y. Li, Louis W. Shapiro

Discret. Appl. Math., 2007

RNA Folding Including Pseudoknots: A New Parameterized Algorithm and Improved Upper Bound.

Chunmei Liu, Yinglei Song, Louis W. Shapiro

Proceedings of the Algorithms in Bioinformatics, 7th International Workshop, 2007

2006

Parity reversing involutions on plane trees and 2-Motzkin paths.

William Y. C. Chen, Louis W. Shapiro, Laura L. M. Yang

Eur. J. Comb., 2006

2003

Bijections and the Riordan group.

Louis W. Shapiro

Theor. Comput. Sci., 2003

2002

A bijection between ordered trees and 2-Motzkin paths and its many consequences.

Emeric Deutsch, Louis W. Shapiro

Discret. Math., 2002

2001

Leaves of Ordered Trees: 10753.

Louis W. Shapiro, Richard Ehrenborg, John W. Moon, Michael Reid

Am. Math. Mon., 2001

A survey of the Fine numbers.

Emeric Deutsch, Louis W. Shapiro

Discret. Math., 2001

Some Open Questions about Random Walks, Involutions, Limiting Distributions, and Generating Functions.

Louis W. Shapiro

Adv. Appl. Math., 2001

1999

Preface.

L. M. Gessel, Louis W. Shapiro, Douglas G. Rogers

Discret. Math., 1999

1992

How to Guess a Generating Function.

Seyoum Getu, Louis W. Shapiro, Wen-Jin Woan, Leon C. Woodson

SIAM J. Discret. Math., 1992

Random Walks with Absorbing Points.

Louis W. Shapiro

Discret. Appl. Math., 1992

1991

Bootstrap Percolation, the Schröder Numbers, and the <i>N</i>-Kings Problem.

Louis W. Shapiro, A. B. Stephens

SIAM J. Discret. Math., 1991

Voting blocks, reluctant functions, and a formula of Hurwitz.

Louis W. Shapiro

Discret. Math., 1991

The Riordan group.

Louis W. Shapiro, Seyoum Getu, Wen-Jin Woan, Leon C. Woodson

Discret. Appl. Math., 1991

1982

Product-Weighted Lead Codes Revisited.

Seyoum Getu, Louis W. Shapiro, Wen-Jin Woan

J. Comb. Theory, Ser. A, 1982

1981

A combinatorial proof of a Chevyshev polynomial identity.

Louis W. Shapiro

Discret. Math., 1981

1977

Motzkin Numbers.

Robert Donaghey, Louis W. Shapiro

J. Comb. Theory, Ser. A, 1977

1976

A Short Proof of an Identity of Touchard's Concerning Catalan Numbers.

Louis W. Shapiro

J. Comb. Theory, Ser. A, 1976

A Catalan triangle.

Louis W. Shapiro

Discret. Math., 1976