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Daniel H. Ullman

Affiliations:
  • George Washington University, Department of Mathematics, Washington, DC, USA


According to our database1, Daniel H. Ullman authored at least 22 papers between 1991 and 2024.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of two.

Timeline

Legend:

Book 
In proceedings 
Article 
PhD thesis 
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Links

Online presence:

On csauthors.net:

Bibliography

2024
Problems and Solutions.
[BibTeX]
[DOI]
Daniel H. Ullman
,
Daniel J. Velleman
,
Stan Wagon
,
Douglas B. West
Am. Math. Mon., 2024

2023
The Eighty-Third William Lowell Putnam Mathematical Competition.
[BibTeX]
[DOI]
Daniel H. Ullman
,
Paul Zeitz
Am. Math. Mon., September, 2023

2022
The Eighty-Second William Lowell Putnam Mathematical Competition.
[BibTeX]
[DOI]
Daniel H. Ullman
,
Paul Zeitz
Am. Math. Mon., 2022

Problems and Solutions.
[BibTeX]
[DOI]
Daniel H. Ullman
,
Daniel J. Velleman
,
Stan Wagon
Am. Math. Mon., 2022

2021
The Eighty-First William Lowell Putnam Mathematical Competition.
[BibTeX]
[DOI]
Mark Krusemeyer
,
Daniel H. Ullman
,
Paul Zeitz
Am. Math. Mon., 2021

2020
Problems and Solutions.
[BibTeX]
[DOI]
Daniel H. Ullman
,
Daniel J. Velleman
,
Douglas B. West
Am. Math. Mon., 2020

Problems and Solutions (with the collaboration of Paul Bracken, Ezra A. Brown Zachary Franco Christian Friesen László Lipták Rick Luttmann Frank B. Miles Lenhard Ng Kenneth Stolarsky Richard Stong Stan Wagon Lawrence Washington Elizabeth Wilmer Fuzhen Zhang and Li Zhou).
[BibTeX]
[DOI]
Daniel H. Ullman
,
Daniel J. Velleman
,
Douglas B. West
Am. Math. Mon., 2020

The Eightieth William Lowell Putnam Mathematical Competition.
[BibTeX]
[DOI]
Mark Krusemeyer
,
Daniel H. Ullman
Am. Math. Mon., 2020

2019
Differences of Bijections.
[BibTeX]
[DOI]
Daniel H. Ullman
,
Daniel J. Velleman
Am. Math. Mon., 2019

The Seventy-Ninth William Lowell Putnam Mathematical Competition.
[BibTeX]
[DOI]
Mark Krusemeyer
,
Daniel H. Ullman
Am. Math. Mon., 2019

Problems and Solutions.
[BibTeX]
[DOI]
Gerald A. Edgar
,
Daniel H. Ullman
,
Douglas B. West
,
Paul Bracken
Am. Math. Mon., 2019

Problems and Solutions.
[BibTeX]
[DOI]
Gerald A. Edgar
,
Daniel H. Ullman
,
Douglas B. West
Am. Math. Mon., 2019

2018
The Seventy-Eighth William Lowell Putnam Mathematical Competition.
[BibTeX]
[DOI]
Mark Krusemeyer
,
Daniel H. Ullman
Am. Math. Mon., 2018

2014
Review: <i>Math on Trial: How Mathematics Is Used and Abused in the Courtroom</i>. By Leila Schneps and Coralie Colmez, Basic Books, New York, 2013, xi+256 pp., ISBN 978-0-465-03292-1, $26.99.
[BibTeX]
[DOI]
Daniel Ullman
Am. Math. Mon., 2014

2002
Girth and fractional chromatic number of planar graphs.
[BibTeX]
[DOI]
Amir Pirnazar
,
Daniel H. Ullman
J. Graph Theory, 2002

1995
On point-halfspace graphs.
[BibTeX]
[DOI]
Edward R. Scheinerman
,
Ann N. Trenk
,
Daniel Ullman
J. Graph Theory, 1995

The fractional chromatic number of mycielski's graphs.
[BibTeX]
[DOI]
Michael Larsen
,
James Gary Propp
,
Daniel Ullman
J. Graph Theory, 1995

1994
Fractional isomorphism of graphs.
[BibTeX]
[DOI]
Motakuri V. Ramana
,
Edward R. Scheinerman
,
Daniel Ullman
Discret. Math., 1994

1993
Sequential Compounds of Combinatorial Games.
[BibTeX]
[DOI]
Walter Stromquist
,
Daniel Ullman
Theor. Comput. Sci., 1993

Undirected Edge Geography.
[BibTeX]
[DOI]
Aviezri S. Fraenkel
,
Edward R. Scheinerman
,
Daniel Ullman
Theor. Comput. Sci., 1993

1992
On Tensor Powers of Integer Programs.
[BibTeX]
[DOI]
Robin Pemantle
,
James Gary Propp
,
Daniel Ullman
SIAM J. Discret. Math., 1992

1991
On the structure of the lattice of noncrossing partitions.
[BibTeX]
[DOI]
Rodica Simion
,
Daniel Ullman
Discret. Math., 1991


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