David Callan - researchr alias

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Viewing Publication 1 - 54 from 54

2023

Inversion Sequences Avoiding a Triple of Patterns of 3 LettersDavid Callan, Vít Jelínek, Toufik Mansour. combinatorics, 30(3), 2023. [doi]

2021

Permutations avoiding 4321 and 3241 have an algebraic generating functionDavid Callan. dmtcs, 22(2), 2021. [doi]

Statistics on Bargraphs of Catalan WordsDavid Callan, Toufik Mansour, José L. Ramírez. jalc, 26(3-4):177-196, 2021. [doi]

2017

Revitalized Automatic Proofs: DemonstrationsTewodros Amdeberhan, David Callan, Hideyuki Ohtsuka, Roberto Tauraso. int, 17, 2017. [doi]

Wilf classification of triples of 4-letter patterns IIDavid Callan, Toufik Mansour, Mark Shattuck. dmtcs, 19(1), 2017. [doi]

Wilf classification of triples of 4-letter patterns IDavid Callan, Toufik Mansour, Mark Shattuck. dmtcs, 19(1), 2017. [doi]

2015

Some Combinatorial Arrays Related to the Lotka-Volterra SystemDavid Callan, Shi-Mei Ma, Toufik Mansour. combinatorics, 22(2):2, 2015. [doi]

2013

Valuations and Combinatorics of Truncated Exponential SumsTewodros Amdeberhan, David Callan, Victor H. Moll. int, 13, 2013. [doi]

2012

Flexagons Lead to a Catalan Number IdentityDavid Callan. tamm, 119(5):415-419, 2012. [doi]

The run transformDavid Callan, Emeric Deutsch. DM, 312(19):2927-2937, 2012. [doi]

2010

Klazar trees and perfect matchingsDavid Callan. ejc, 31(5):1265-1282, 2010. [doi]

2009

Pattern avoidance in flattened partitionsDavid Callan. DM, 309(12):4187-4191, 2009. [doi]

Divisibility of a Central Binomial Sum: 11292&11307 [2007, 451&640]David Callan, Robin Chapman. tamm, 116(5):468-470, 2009. [doi]

Uniformly Distributed Valleys: 11312 [2007, 744]David Callan, Marc Renault. tamm, 116(6):552-553, 2009. [doi]

Oddly Triangulated Polygons: 11298 [2007, 547]Jakob Jonsson, Annie Carter, David Callan. tamm, 116(4):371-372, 2009. [doi]

2008

A Determinant of Stirling Cycle Numbers Counts Unlabeled Acyclic Single-Source AutomataDavid Callan. dmtcs, 10(2), 2008. [doi]

Problem 11362David Callan. tamm, 115(5):461, 2008. [doi]

Circular Digraph Walks, k-Balanced Strings, Lattice Paths and Chebychev PolynomialsEvangelos Georgiadis, David Callan, Qing-Hu Hou. combinatorics, 15(1), 2008. [doi]

2007

A Bijection on Dyck Paths and its Cycle StructureDavid Callan. combinatorics, 14(1), 2007. [doi]

Problem 11312David Callan. tamm, 114(8):744, 2007. [doi]

Problem 11307David Callan. tamm, 114(7):640, 2007. [doi]

Problem 11292David Callan. tamm, 114(5):451, 2007. [doi]

2006

A Lattice Path Equality: 11106David Callan, Kenneth Bernstein. tamm, 113(7):656-657, 2006. [doi]

The Maximum Associativeness of Division: 11091David Callan, et al.. tamm, 113(5):462-463, 2006. [doi]

2005

Dyck Paths Skipping Every Fourth Point: 11013David Callan, Marc Renault. tamm, 112(2):184, 2005. [doi]

2004

Problem 11106David Callan. tamm, 111(8):725, 2004. [doi]

A Uniformly Distributed Statistic on a Class of Lattice PathsDavid Callan. combinatorics, 11(1), 2004. [doi]

Counting a Set of Rooted Trees: 10952David Callan, M. A. Prasad. tamm, 111(3):265-266, 2004. [doi]

Problem 11091David Callan. tamm, 111(6):534, 2004. [doi]

2003

Problem 11013David Callan. tamm, 110(5):438, 2003. [doi]

A Permanent Fixture: 10925David Callan, Harris Kwong. tamm, 110(10):960, 2003. [doi]

Another Binomial Coefficient Identity: 10878Pál Péter Dályay, Saïd Amghibech, David Callan. tamm, 110(4):342-343, 2003. [doi]

Another Description of the Central Delannoy Numbers: 10894Robert A. Sulanke, Jose Luis Arregui, Danijela Vujic, Nelson Castañeda, David Callan. tamm, 110(5):443-444, 2003. [doi]

2002

A Property of the Binary Sum of a Family of Sets: 10865David Beckwith, Li Zhou, David Callan. tamm, 109(9):859-860, 2002. [doi]

Problem 10925David Callan. tamm, 109(2):201-202, 2002. [doi]

Problem 10952David Callan. tamm, 109(6):569, 2002. [doi]

A Recursively Defined Sequence of Functions: 10785Emeric Deutsch, John Henry Steelman, David Callan. tamm, 109(3):302-304, 2002. [doi]

2001

Another Path to Generalized Catalan Numbers: 10751Emeric Deutsch, David Callan, Sabin Cautis, et al.. tamm, 108(9):872-873, 2001. [doi]

A Generalization of Hall's Theorem: 10701Fred Galvin, Stephen C. Locke, Sung-Soo Kim, David Callan. tamm, 108(1):79-80, 2001. [doi]

A Rational Generating Function for Relative Divisors: 10750Leonard Smiley, David Callan, David M. Wells, Saïd Amghibech. tamm, 108(7):670, 2001. [doi]

2000

Rogers-Ramanujan Partitions: 10627George E. Andrews, John Henry Steelman, G. L. Body, David Callan, Robin J. Chapman, Kee-Wai Lau, J. T. Lewis, John H. Lindsey II, G. Lord, J. G. Merickel. tamm, 107(1):86, 2000. [doi]

Partitions and Pentagonal Numbers: 10628George E. Andrews, Kee-Wai Lau, G. L. Body, David Callan, Robin J. Chapman, G. Lord, Heinz-Jürgen Seiffert, Doron Zeilberger. tamm, 107(1):86-87, 2000. [doi]

The Value of Primitive Words: 10636David Callan, Robin J. Chapman, John H. Lindsey II, Danrun Huang. tamm, 107(1):88-89, 2000. [doi]

An Identity Involving Derangements: 10643David Callan, Knut Dale, Ivar Skau, John Henry Steelman, Jany C. Binz, Robin J. Chapman, F. Herzig, André Kündgen, Reiner Martin, José Heber Nieto, O. A. Saleh, S. Byrd, Edward F. Schmeichel, Isaac Sofair, Michael Vowe. tamm, 107(3):278-279, 2000. [doi]

Periodic Points and Forests: 10666David Callan, David Beckwith. tamm, 107(8):753-754, 2000. [doi]

Analysis of a French Inheritance Law: 10652David Callan, Robin Chapman, John H. Lindsey II, J. Parkinson, V. Schindler, Plamen Simeonov. tamm, 107(3):280-281, 2000. [doi]

Another Type of Lattice Path: 10658Emeric Deutsch, David Callan, M. Beck, David Beckwith, W. Bohm, Richard F. McCoart. tamm, 107(4):368-370, 2000. [doi]

Permutation Parameters with the Same Distribution: 10634Emeric Deutsch, Ira M. Gessel, David Callan. tamm, 107(6):567-568, 2000. [doi]

When a Multiple of π/2 is Close to an Integer: 10640Michael Filaseta, Allen Stenger, David Callan, Zachary Franco. tamm, 107(2):177-179, 2000. [doi]

A Property of Some Normal Matrices: 10645Jürgen Groß, Götz Trenkler, S.-O. Troschke, William F. Trench, David Callan, Grace Wahba, Robin J. Chapman, Luz M. DeAlba, John H. Lindsey II. tamm, 107(2):179-180, 2000. [doi]

Interrupted Partitions: 10629Frank Schmidt, Peter Mork, David Beckwith, David Callan, D. J. Chapman, G. Lord, Cecil C. Rousseau, Plamen Simeonov, John Henry Steelman. tamm, 107(1):87-88, 2000. [doi]

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