Generalized Rotation numbers. - Robin J. Chapman; Julie Haviland (J. Graph Theory, 1993)

Shrinking integer lattices. - Robin J. Chapman (Discret. Math., 1995)

A note on a lemma of Brauer. - Robin J. Chapman; Bridget S. Webb (Discret. Math., 1995)

The rotation index of a graph. - Robin J. Chapman; Julie Haviland (Ars Comb., 1996)

Exciton Tranport (M. L. Glasser). - J. Boersma; Robin Chapman (SIAM Rev., 1996)

A Problem from Integral Geometry (Marc Chamberland). - Robin Chapman (SIAM Rev., 1996)

A Series of Bessel Functions (Norbert Ortner and Peter Wagner). - Robin Chapman; Norbert Ortner; Peter Wagner (SIAM Rev., 1996)

Moments of Dyck paths. - Robin Chapman (Discret. Math., 1999)

Franklin's Argument Proves an Identity of Zagier. - Robin J. Chapman (Electron. J. Comb., 2000)

Partitions and Pentagonal Numbers: 10628. - George E. Andrews; Kee-Wai Lau; G. L. Body; David Callan; Robin J. Chapman; G. Lord; Heinz-Jürgen Seiffert; Doron Zeilberger (Am. Math. Mon., 2000)

Rogers-Ramanujan Partitions: 10627. - George 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 (Am. Math. Mon., 2000)

A Recurrence Generating Multiples of Primes: 10655. - Mihály Bencze; Dan Saracino; Allen Stenger; S. Amghibech; Jean Anglesio; R. Bauer; A. Siegel; David M. Bloom; G. L. Body; David Callan; Robin J. Chapman; Kevin Ford; et al. (Am. Math. Mon., 2000)

The Value of Primitive Words: 10636. - David Callan; Robin J. Chapman; John H. Lindsey II; Danrun Huang (Am. Math. Mon., 2000)

Analysis of a French Inheritance Law: 10652. - David Callan; Robin Chapman; John H. Lindsey II; J. Parkinson; Volkhard Schindler; Plamen Simeonov (Am. Math. Mon., 2000)

An Identity Involving Derangements: 10643. - David 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; et al. (Am. Math. Mon., 2000)

Incenters and Excenters: 10693. - Wu Wei Chao; Michael Reid; F. Bellot Rosado; Robin J. Chapman; Daniele Donini; Shalosh B. Ekhad; N. Lakshmanan; O. P. Lossers; Albert Nijenhuis; Peter Nüesch; C. G. Petalas (Am. Math. Mon., 2000)

Problem 10789. - Robin Chapman (Am. Math. Mon., 2000)

Ordering the Integers Using Specified Differences: 10692. - Glenn G. Chappell; Robin Chapman (Am. Math. Mon., 2000)

How Far Does the First Element Dominate?: 10649. - Emeric Deutsch; John H. Lindsey II; Michael H. Andreoli; Robert A. Agnew; Robin J. Chapman; Michael P. Cohen; M. N. Deshpande; M. D. Ernst; Ellen Hertz; L. R. Ivory; Walther Janous; Gregory Keselman; et al. (Am. Math. Mon., 2000)

Points That Form Simplices of Equal Volume: 10685. - Michael Golomb; G. Donald Chakerian; Robin J. Chapman; John H. Lindsey II; O. P. Lossers; Albert Nijenhuis (Am. Math. Mon., 2000)

Tiling Rectangles with Trominoes: 10641. - Jerrold R. Griggs; Michael Woltermann; B. Borchers; David Callan; Robin J. Chapman; J. Chilcott; Paul Cull; A. Ferguson; K. Martin; G. G. Gagola; Solomon W. Golomb; J. Guilford; et al. (Am. Math. Mon., 2000)

A Property of Some Normal Matrices: 10645. - Jürgen Groß; Götz Trenkler; S.-O. Troschke; William F. Trench; David Callan; Grace Wahba; Robin J. Chapman; Luz M. DeAlba; John H. Lindsey II (Am. Math. Mon., 2000)

The Variance of Logarithms: 10690. - Robert Helmbold; Wook Kim; Robert A. Agnew; Zafar Ahmed; Saïd Amghibech; Kenneth F. Andersen; P. J. Anderson; G. Bower; Bruce S. Burdick; Robin J. Chapman; Daniele Donini; Patrick J. Fitzsimmons; et al. (Am. Math. Mon., 2000)

On the Intersection of Zn with a Hyperplane: 10639. - Warren Koepp; Robin Chapman; John H. Lindsey II (Am. Math. Mon., 2000)

Quadrilaterals in an Isosceles Triangle: 10653. - Marcin Mazur; Roy Barbara; Jean Anglesio; Robin J. Chapman; N. Lakshmanan; John Melville; G. Peng; C. R. Pranesachar (Am. Math. Mon., 2000)

Rigid and Very Rigid Tetrahedra: 10717. - Marcin Mazur; Robin Chapman; Petr Lisonek; Robert B. Israel; Murray S. Klamkin (Am. Math. Mon., 2000)

A Sum of Chebyshev Inequalities: 10687. - James C. Owings Jr.; Jeremy E. Dawson; Robin J. Chapman; Darryl K. Nester; Robert A. Agnew; John Beebee; David Callan; R. Garcia-Pelayo; V. Hernandez; J. Martin; J. Hickman; D. Jones; et al. (Am. Math. Mon., 2000)

Bernoulli, Stirling, and Stirling: 10700. - Leroy Quet; Robin Chapman (Am. Math. Mon., 2000)

All Solutions in the Unit Cube: 10764. - Ray Redheffer; Robin Chapman (Am. Math. Mon., 2000)

Pairs with Equal Squares: 10654. - Richard P. Stanley; Richard Ehrenborg; Stephen M. Gagola Jr.; Robin J. Chapman; John H. Lindsey II (Am. Math. Mon., 2000)

Complex Roots of a Polynomial: 10688. - Ioan Tomescu; Kee-Wai Lau; O. P. Lossers; Kenneth F. Andersen; Robin J. Chapman; Óscar Ciaurri; E. Fernandez; Valerio De Angelis; Emeric Deutsch; G. Will; M. Falkowitz; Zachary Franco; et al. (Am. Math. Mon., 2000)

Alternating Sign Matrices and Tournaments. - Robin Chapman (Adv. Appl. Math., 2001)

An involution on derangements. - Robin Chapman (Discret. Math., 2001)

Conference Matrices and Unimodular Lattices. - Robin Chapman (Eur. J. Comb., 2001)

Problem 10847. - Robin Chapman; Kimmo Eriksson; Richard P. Stanley (Am. Math. Mon., 2001)

The Square of a Random Determinant: 10787. - Juan Arias de Reyna; Robin Chapman (Am. Math. Mon., 2001)

Convergence of a Series: 10808. - Enrico Valdinoci; Robin Chapman (Am. Math. Mon., 2001)

Combinatorial Proofs of q-Series Identities. - Robin J. Chapman (J. Comb. Theory A, 2002)

A Sparse Determinant: 10831. - George E. Andrews; Robin J. Chapman (Am. Math. Mon., 2002)

Grouping k-Tuples of Integers by the Sum of Their Squares: 10778. - Paul Bateman; Dennis Eichhorn; Robin Chapman (Am. Math. Mon., 2002)

Problem 10958. - Robin Chapman (Am. Math. Mon., 2002)

On the Number of Divisors of n in a Special Interval: 10847. - Robin Chapman; Kimmo Eriksson; Richard P. Stanley; Reiner Martin (Am. Math. Mon., 2002)

An Expression for Even-Indexed Bernuoulli Numbers: 10789. - Robin Chapman; M. A. Prasad (Am. Math. Mon., 2002)

Points on a Sphere: 10855. - Ernesto Bruno Cossi; Robin Chapman (Am. Math. Mon., 2002)

Nonsingular Sums of Matrices: 10784. - Alberto Facchini; Francesco Barioli; Robin Chapman; Ron Martin Carroll (Am. Math. Mon., 2002)

The Functional Equation f g = f: 10818. - Cezar Joita; Robin Chapman (Am. Math. Mon., 2002)

A Tree-Counting Identity: 10781. - Leonard Smiley; Helmut Prodinger; Robin Chapman; et al. (Am. Math. Mon., 2002)

Partition identities arising from involutions. - Robin Chapman (Australas. J Comb., 2003)

Angles with Rational Cosines: 10900. - Gordon Rice; Patrick A. Staley; Gerald Myerson; Robin Chapman (Am. Math. Mon., 2003)

An Unexpected Appearance of the Catalan Numbers: 10905. - Richard P. Stanley; Robin Chapman (Am. Math. Mon., 2003)

Generators of Ideals of Matrices over Finite Fields: 10897. - Gregory P. Wene; Robin Chapman (Am. Math. Mon., 2003)

Symmetric Pascal matrices modulo p. - Roland Bacher; Robin Chapman (Eur. J. Comb., 2004)

Steinitz classes of unimodular lattices. - Robin Chapman (Eur. J. Comb., 2004)

A Determinant of Indeterminates: 10859. - Roland Bacher; Robin Chapman; Reiner Martin (Am. Math. Mon., 2004)

Eigenvalues of a Bidiagonal Matrix: 10958. - Robin Chapman; Nicholas Singer (Am. Math. Mon., 2004)

Fibonacci in Complex Camouflage: 10858. - Donald E. Knuth; Robin Chapman (Am. Math. Mon., 2004)

Plucking Stirling Numbers from Trees: 10976. - Vitaly I. Voloshin; José Heber Nieto; Edward R. Scheinerman; Robin Chapman (Am. Math. Mon., 2004)

A probabilistic proof of the Andrews-Gordon identities. - Robin Chapman (Discret. Math., 2005)

Harmonious Trios Are the Vertices of a Regular Icosahedron: 11081. - Stephen Morse; Robin Chapman (Am. Math. Mon., 2005)

A More General Presentation: 11065. - Douglas B. Tyler; Robin Chapman (Am. Math. Mon., 2005)

Monster Mean Tamed: 11031. - Li Zhou 001; Robin Chapman (Am. Math. Mon., 2005)

A Modular Binomial Coefficient Identity: 11118. - Vesselin Dimitrov; Robin Chapman (Am. Math. Mon., 2006)

Ratio of Consecutive Divisors: 11097. - Kevin Ford; Robin Chapman (Am. Math. Mon., 2006)

Cube-Free Sums: 11078. - Donald E. Knuth; Robin Chapman (Am. Math. Mon., 2006)

Pythagorean Triangles Are Not Quite Perfect: 11122. - Victor Pambuccian; Robin Chapman (Am. Math. Mon., 2006)

Diagonals of a Regular Polygon: 10924. - Amol J. Sasane; Robin Chapman (Am. Math. Mon., 2006)

Inequalities Involving Rank and Kronecker Product: 11129. - Yongge Tian; Robin Chapman (Am. Math. Mon., 2006)

A Conjecture of Stanley on Alternating Permutations. - Robin Chapman; Lauren K. Williams (Electron. J. Comb., 2007)

When Does It Converge: 11185. - Rainer Brück 002; Robin Chapman (Am. Math. Mon., 2007)

The Trace of the Sum of All Products of Two Matrices: 11204. - Christopher J. Hillar; John H. Lindsey II; Robin Chapman (Am. Math. Mon., 2007)

The Sum of Catalan Numbers, Modulo 3: 11165. - Yogesh More; Robin Chapman (Am. Math. Mon., 2007)

Perfect Parity Patterns: 11243. - Donald E. Knuth; Robin Chapman; Reiner Martin (Am. Math. Mon., 2008)

Simple formulas for lattice paths avoiding certain periodic staircase boundaries. - Robin J. Chapman; Timothy Y. Chow; Amit Khetan; David Petrie Moulton; Robert J. Waters (J. Comb. Theory A, 2009)

Divisibility of a Central Binomial Sum: 11292&11307 [2007, 451&640]. - David Callan; Robin Chapman (Am. Math. Mon., 2009)

Partitioning Values of a Polynomial into Sets of Equal Sum: 11266. - Marian Tetiva; Robin Chapman (Am. Math. Mon., 2009)

Partitioning Values of a Polynomial into Sets of Equal Sum: 11266 [2007, 77]. - Marian Tetiva; Robin Chapman (Am. Math. Mon., 2009)

On Boole's formula for factorials. - Horst Alzer; Robin Chapman (Australas. J Comb., 2014)

Partitions with bounded differences between largest and smallest parts. - Robin Chapman (Australas. J Comb., 2016)

Recursions associated to trapezoid, symmetric and rotation symmetric functions over Galois fields. - Francis N. Castro; Robin Chapman; Luis A. Medina; L. Brehsner Sepúlveda (Discret. Math., 2018)