Richard Ehrenborg

According to our database, Richard Ehrenborg authored at least 76 papers between 1993 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2024

The Ehrhart and face polynomials of the graph polytope of a cycle.

Richard Ehrenborg

Eur. J. Comb., 2024

Two classes of level Eulerian posets.

Richard Ehrenborg

Discret. Math., 2024

2023

Pizza and 2-Structures.

Richard Ehrenborg, Sophie Morel, Margaret A. Readdy

Discret. Comput. Geom., December, 2023

Optimization Perspectives on Shellsort.

Oscar Skean, Richard Ehrenborg, Jerzy W. Jaromczyk

CoRR, 2023

2021

The r-signed Birkhoff transform.

Richard Ehrenborg

Discret. Math., 2021

Bounds on the Number of Compatible k-Simplices Matching the Orientation of the (k - 1)-Skeleton of a Simplex.

Karthik Chandrasekhar, Richard Ehrenborg

Comb., 2021

The number of spanning trees of the Bruhat graph.

Richard Ehrenborg

Adv. Appl. Math., 2021

2020

The Wästlund Partition in Higher Dimensions.

Richard Ehrenborg

Am. Math. Mon., 2020

A Counting Proof for When 2 Is a Quadratic Residue.

Karthik Chandrasekhar, Richard Ehrenborg, Frits Beukers

Am. Math. Mon., 2020

The expectation of the Vandermonde product squared for uniform random variables.

Richard Ehrenborg

Adv. Appl. Math., 2020

2019

A Bijective Answer to a Question of Simion.

Richard Ehrenborg, Gábor Hetyei, Margaret A. Readdy

J. Integer Seq., 2019

On the difference of odd/even cubatures.

Richard Ehrenborg

J. Approx. Theory, 2019

The antipode of the noncrossing partition lattice.

Richard Ehrenborg, Alex Happ

Adv. Appl. Math., 2019

Counting faces in the extended Shi arrangement.

Richard Ehrenborg

Adv. Appl. Math., 2019

2018

Simion's Type B Associahedron is a Pulling Triangulation of the Legendre Polytope.

Richard Ehrenborg, Gábor Hetyei, Margaret A. Readdy

Discret. Comput. Geom., 2018

q-Stirling Identities Revisited.

Yue Cai, Richard Ehrenborg, Margaret A. Readdy

Electron. J. Comb., 2018

On the powers of the descent set statistic.

Richard Ehrenborg, Alex Happ

Adv. Appl. Math., 2018

2017

A Restricted Growth Word Approach to Partitions with Odd/Even Size Blocks.

Richard Ehrenborg, Dustin Hedmark, Cyrus Hettle

J. Integer Seq., 2017

2016

Parking Cars of Different Sizes.

Richard Ehrenborg, Alex Happ

Am. Math. Mon., 2016

Cyclically Consecutive Permutation Avoidance.

Richard Ehrenborg

SIAM J. Discret. Math., 2016

The Gaussian Coefficient Revisited.

Richard Ehrenborg, Margaret A. Readdy

J. Integer Seq., 2016

The descent set polynomial revisited.

Richard Ehrenborg, N. Bradley Fox

Eur. J. Comb., 2016

The signed descent set polynomial revisited.

Richard Ehrenborg, N. Bradley Fox

Discret. Math., 2016

2015

Number of cycles in the graph of 312-avoiding permutations.

Richard Ehrenborg, Sergey Kitaev, Einar Steingrímsson

J. Comb. Theory A, 2015

A poset view of the major index.

Richard Ehrenborg, Margaret A. Readdy

Adv. Appl. Math., 2015

2014

Hamiltonian Cycles on Archimedean Solids Are Twisting Free.

Richard Ehrenborg

Am. Math. Mon., 2014

Manifold arrangements.

Richard Ehrenborg, Margaret A. Readdy

J. Comb. Theory A, 2014

On the generating function for consecutively weighted permutations.

Richard Ehrenborg

Eur. J. Comb., 2014

A sign-reversing involution for an extension of Torelli's Pfaffian identity.

Richard Ehrenborg, N. Bradley Fox

Discret. Math., 2014

The average reliability of a graph.

Jason I. Brown, Danielle Cox, Richard Ehrenborg

Discret. Appl. Math., 2014

2013

Level Eulerian Posets.

Richard Ehrenborg, Gábor Hetyei, Margaret A. Readdy

Graphs Comb., 2013

The excedance algebra.

Eric Clark, Richard Ehrenborg

Discret. Math., 2013

2012

Descent pattern avoidance.

Richard Ehrenborg, JiYoon Jung

Adv. Appl. Math., 2012

2011

On the Non-existence of an R-labeling.

Richard Ehrenborg, Margaret A. Readdy

Order, 2011

The <i>f</i>-Vector of the Descent Polytope.

Denis Chebikin, Richard Ehrenborg

Discret. Comput. Geom., 2011

Excedances of affine permutations.

Eric Clark, Richard Ehrenborg

Adv. Appl. Math., 2011

2010

The complex of non-crossing diagonals of a polygon.

Benjamin Braun, Richard Ehrenborg

J. Comb. Theory A, 2010

Explicit expressions for the extremal excedance set statistics.

Eric Clark, Richard Ehrenborg

Eur. J. Comb., 2010

Asymptotics of the Euler number of bipartite graphs.

Richard Ehrenborg, Yossi Farjoun

Adv. Appl. Math., 2010

2009

A Geometric Approach to Acyclic Orientations.

Richard Ehrenborg, Michael Slone

Order, 2009

Cyclotomic factors of the descent set polynomial.

Denis Chebikin, Richard Ehrenborg, Pavlo Pylyavskyy, Margaret A. Readdy

J. Comb. Theory A, 2009

Exponential Dowling structures.

Richard Ehrenborg, Margaret A. Readdy

Eur. J. Comb., 2009

Affine and Toric Hyperplane Arrangements.

Richard Ehrenborg, Margaret A. Readdy, Michael Slone

Discret. Comput. Geom., 2009

2008

Goes Back to Boole: 11234.

Jim Brennan, Richard Ehrenborg, Eugene A. Herman

Am. Math. Mon., 2008

2007

Classification of the factorial functions of Eulerian binomial and Sheffer posets.

Richard Ehrenborg, Margaret A. Readdy

J. Comb. Theory A, 2007

The Möbius function of partitions with restricted block sizes.

Richard Ehrenborg, Margaret A. Readdy

Adv. Appl. Math., 2007

2006

Problem 11234.

Jim Brennan, Richard Ehrenborg

Am. Math. Mon., 2006

Magic Squares and Nontransitive Dice: 11099.

Matthias Beck, Richard Ehrenborg, Thomas Zaslavsky, Michael Avidon, John H. Lindsey II

Am. Math. Mon., 2006

The topology of the independence complex.

Richard Ehrenborg, Gábor Hetyei

Eur. J. Comb., 2006

2004

Problem 11099.

Matthias Beck, Richard Ehrenborg, Thomas Zaslavsky

Am. Math. Mon., 2004

Enumerative Properties of Ferrers Graphs.

Richard Ehrenborg, Stephanie van Willigenburg

Discret. Comput. Geom., 2004

2003

Inequalities for cd-Indices of Joins and Products of Polytopes.

Richard Ehrenborg, Harold Fox

Comb., 2003

Determinants involving <i>q</i>-Stirling numbers.

Richard Ehrenborg

Adv. Appl. Math., 2003

2002

A Probabilistic Approach to the Descent Statistic.

Richard Ehrenborg, Michael Levin, Margaret A. Readdy

J. Comb. Theory A, 2002

Homology of Newtonian Coalgebras.

Richard Ehrenborg, Margaret A. Readdy

Eur. J. Comb., 2002

The Asymptotics of Almost Alternating Permutations.

Richard Ehrenborg

Adv. Appl. Math., 2002

2001

Leaves of Ordered Trees: 10753.

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

Am. Math. Mon., 2001

k-Eulerian Posets.

Richard Ehrenborg

Order, 2001

Non-constructible Complexes and the Bridge Index.

Richard Ehrenborg, Masahiro Hachimori

Eur. J. Comb., 2001

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

The Hankel Determinant of Exponential Polynomials.

Richard Ehrenborg

Am. Math. Mon., 2000

The Dowling Transform of Subspace Arrangements.

Richard Ehrenborg, Margaret A. Readdy

J. Comb. Theory A, 2000

Combinatorial Proof of the Log-Concavity of the Numbers of Permutations with k Runs.

Miklós Bóna, Richard Ehrenborg

J. Comb. Theory A, 2000

Yet Another Triangle for the Genocchi Numbers.

Richard Ehrenborg, Einar Steingrímsson

Eur. J. Comb., 2000

Cutting Polytopes and Flag f-Vectors.

Richard Ehrenborg, D. Johnston, Rajmohan Rajagopalan, Margaret A. Readdy

Discret. Comput. Geom., 2000

The Excedance Set of a Permutation.

Richard Ehrenborg, Einar Steingrímsson

Adv. Appl. Math., 2000

1999

On Flag Vectors, the Dowling Lattice, and Braid Arrangements.

Richard Ehrenborg, Margaret A. Readdy

Discret. Comput. Geom., 1999

1998

Mixed Volumes and Slices of the Cube.

Richard Ehrenborg, Margaret A. Readdy, Einar Steingrímsson

J. Comb. Theory A, 1998

1997

Thec-2d-Index of Oriented Matroids.

Louis J. Billera, Richard Ehrenborg, Margaret A. Readdy

J. Comb. Theory A, 1997

1996

The r-cubical Lattice and a Generalization of the cd-index.

Richard Ehrenborg, Margaret A. Readdy

Eur. J. Comb., 1996

Juggling and applications to q-analogues.

Richard Ehrenborg, Margaret A. Readdy

Discret. Math., 1996

Playing Nim on a Simplicial Complex.

Richard Ehrenborg, Einar Steingrímsson

Electron. J. Comb., 1996

1995

The Blind Bartender's Problem.

Richard Ehrenborg, Chris M. Skinner

J. Comb. Theory A, 1995

Generalizations of Baxter's Theorem and Cubical Homology.

Richard Ehrenborg, Gábor Hetyei

J. Comb. Theory A, 1995

1994

Schröder Parenthesizations and Chordates.

Richard Ehrenborg, Miguel A. Méndez

J. Comb. Theory A, 1994

1993

Apolarity and Canonical Forms for Homogeneous Polynomials.

Richard Ehrenborg, Gian-Carlo Rota

Eur. J. Comb., 1993