Daniel H. Ullman

91 papers Journal 91
YearRankTypeTitle / Venue / Authors
2026 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2026 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2026 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2025 J jnl
The Eighty-Fifth William Lowell Putnam Mathematical Competition.
Am. Math. Mon.
Daniel H. Ullman, Paul Zeitz
2024 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2024 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2024 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2024 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2024 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2024 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2024 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2024 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2024 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2024 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2024 J jnl
The Eighty-Fourth William Lowell Putnam Mathematical Competition.
Am. Math. Mon.
Daniel H. Ullman, Paul Zeitz
2023 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2023 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2023 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2023 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2023 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2023 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2023 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2023 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2023 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2023 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2023 J jnl
The Eighty-Third William Lowell Putnam Mathematical Competition.
Am. Math. Mon.
Daniel H. Ullman, Paul Zeitz
2022 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon
2022 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2022 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2022 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2022 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2022 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2022 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2022 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2022 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2022 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Stan Wagon, Douglas B. West
2022 J jnl
The Eighty-Second William Lowell Putnam Mathematical Competition.
Am. Math. Mon.
Daniel H. Ullman, Paul Zeitz
2021 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2021 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2021 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2021 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2021 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2021 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2021 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2021 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2021 J jnl
Problems and solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2021 J jnl
Problems and solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2021 J jnl
The Eighty-First William Lowell Putnam Mathematical Competition.
Am. Math. Mon.
Mark Krusemeyer, Daniel H. Ullman, Paul Zeitz
2020 J jnl
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.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2020 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2020 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2020 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2020 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2020 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2020 J jnl
Problems and Solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2020 J jnl
Problems and solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2020 J jnl
Problems and solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2020 J jnl
Problems and solutions.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman, Douglas B. West
2020 J jnl
The Eightieth William Lowell Putnam Mathematical Competition.
Am. Math. Mon.
Mark Krusemeyer, Daniel H. Ullman
2019 J jnl
Differences of Bijections.
Am. Math. Mon.
Daniel H. Ullman, Daniel J. Velleman
2019 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2019 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2019 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2019 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2019 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2019 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2019 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2019 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West, Paul Bracken
2019 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West, Paul Bracken
2019 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West, Paul Bracken
2019 J jnl
The Seventy-Ninth William Lowell Putnam Mathematical Competition.
Am. Math. Mon.
Mark Krusemeyer, Daniel H. Ullman
2018 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2018 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2018 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2018 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2018 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2018 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2018 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2018 J jnl
Problems and Solutions.
Am. Math. Mon.
Gerald A. Edgar, Daniel H. Ullman, Douglas B. West
2018 J jnl
The Seventy-Eighth William Lowell Putnam Mathematical Competition.
Am. Math. Mon.
Mark Krusemeyer, Daniel H. Ullman
2002 J jnl
Girth and fractional chromatic number of planar graphs.
J. Graph Theory
Amir Pirnazar, Daniel H. Ullman