Daniel H. Ullman

Publication Activity (10 Years)

Years Active: 2002-2024
Publications (10 Years): 72

Top Topics

Practical Solutions

Combinatorial Optimisation

Similar Problems

Top Venues

Publications

Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 131 (3) (2024)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 131 (4) (2024)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 131 (5) (2024)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 131 (2) (2024)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 131 (1) (2024)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 131 (6) (2024)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 131 (7) (2024)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 130 (8) (2023)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 130 (6) (2023)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 130 (4) (2023)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 130 (7) (2023)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 130 (9) (2023)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 130 (3) (2023)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 130 (5) (2023)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 130 (1) (2023)
Daniel H. Ullman, Paul Zeitz
The Eighty-Third William Lowell Putnam Mathematical Competition. Am. Math. Mon. 130 (8) (2023)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 130 (10) (2023)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 130 (2) (2023)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 129 (4) (2022)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 129 (6) (2022)
Daniel H. Ullman, Paul Zeitz
The Eighty-Second William Lowell Putnam Mathematical Competition. Am. Math. Mon. 129 (8) (2022)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 129 (2) (2022)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 129 (5) (2022)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 129 (7) (2022)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 129 (8) (2022)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 129 (1) (2022)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon
Problems and Solutions. Am. Math. Mon. 129 (3) (2022)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 129 (10) (2022)
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
Problems and Solutions. Am. Math. Mon. 129 (9) (2022)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and solutions. Am. Math. Mon. 128 (7) (2021)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 128 (6) (2021)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 128 (10) (2021)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 128 (1) (2021)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and solutions. Am. Math. Mon. 128 (4) (2021)
Mark Krusemeyer, Daniel H. Ullman, Paul Zeitz
The Eighty-First William Lowell Putnam Mathematical Competition. Am. Math. Mon. 128 (8) (2021)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 128 (8) (2021)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 128 (5) (2021)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 128 (3) (2021)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 128 (2) (2021)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 128 (9) (2021)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and solutions. Am. Math. Mon. 127 (9) (2020)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and solutions. Am. Math. Mon. 127 (6) (2020)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 127 (1) (2020)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and solutions. Am. Math. Mon. 127 (8) (2020)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 127 (3) (2020)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 127 (4) (2020)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 127 (5) (2020)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 127 (7) (2020)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
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). Am. Math. Mon. 127 (2) (2020)
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 127 (10) (2020)
Mark Krusemeyer, Daniel H. Ullman
The Eightieth William Lowell Putnam Mathematical Competition. Am. Math. Mon. 127 (8) (2020)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 126 (7) (2019)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 126 (3) (2019)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 126 (8) (2019)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West, Paul Bracken
Problems and Solutions. Am. Math. Mon. 126 (4) (2019)
Mark Krusemeyer, Daniel H. Ullman
The Seventy-Ninth William Lowell Putnam Mathematical Competition. Am. Math. Mon. 126 (8) (2019)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West, Paul Bracken
Problems and Solutions. Am. Math. Mon. 126 (5) (2019)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West, Paul Bracken
Problems and Solutions. Am. Math. Mon. 126 (2) (2019)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 126 (10) (2019)
Daniel H. Ullman, Daniel J. Velleman
Differences of Bijections. Am. Math. Mon. 126 (3) (2019)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 126 (1) (2019)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 126 (6) (2019)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 126 (9) (2019)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 125 (6) (2018)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 125 (1) (2018)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 125 (9) (2018)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 125 (10) (2018)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 125 (3) (2018)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 125 (4) (2018)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 125 (5) (2018)
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
Problems and Solutions. Am. Math. Mon. 125 (8) (2018)
Mark Krusemeyer, Daniel H. Ullman
The Seventy-Eighth William Lowell Putnam Mathematical Competition. Am. Math. Mon. 125 (8) (2018)
Amir Pirnazar, Daniel H. Ullman
Girth and fractional chromatic number of planar graphs. J. Graph Theory 39 (3) (2002)