Coefficients named for this person decay according to a power law whose degree is two plus the smoothness of the underlying function. This person’s namesake “extension” and “restriction” operators are the subject of the disproven Mizohata–Takeuchi conjecture. An overshoot of around 9 percent results from truncating constructs named for this person due to the Gibbs phenomenon. Constant functions become Dirac delta functions under an operation named for this person defined by integrating a function times “e to the minus i k x.” Periodic functions are decomposed into sums of trigonometric functions in this person’s namesake “series.” For 10 points, what mathematician names a transform that, like the Laplace transform, translates from the time domain to the frequency domain? ■END■
| 2025 ACF Nationals | 2025-08-09 | Y | 3 | 100% | 0% | 0% | 74.67 |
| Florida | Main | Y | 13 | 77% | 0% | 31% | 90.30 |
| Midwest | Main | Y | 8 | 75% | 0% | 50% | 84.00 |
| Northeast | Main | Y | 5 | 100% | 0% | 40% | 89.40 |
| Canada | Main | Y | 6 | 100% | 0% | 50% | 80.33 |
| South Central | Main | Y | 5 | 100% | 0% | 60% | 108.40 |
| Upper Mid-Atlantic | Main | Y | 8 | 75% | 0% | 50% | 97.00 |
| Upstate NY | Main | Y | 8 | 75% | 0% | 75% | 106.00 |
| Pacific Northwest | Main | Y | 10 | 100% | 0% | 50% | 97.40 |
| Player | Team | Opponent | Buzz Position | Value |
|---|---|---|---|---|
| Jiping Fang | Illinois B | Michigan D | 42 | -5 |
| Abbott Sherwin | NC State | North Carolina A | 44 | 10 |
| Sharath Narayan | Northwestern A | Texas B | 44 | -5 |
| Matthew Sumanen | Georgia Tech A | Auburn A | 49 | -5 |
| Alex Thomas | Georgia Tech C | Bruin A | 53 | -5 |
| Annika Larson | Claremont Scripps | UCLA B | 55 | 10 |
| William Groger | Princeton A | Rutgers B | 55 | 10 |
| Matthew He | Texas A | Alberta B | 55 | -5 |
| Benjamin Chapman | Toronto A | Guelph A | 57 | 10 |
| Dmitri Anh-Minh Tran | UCSB | USC | 58 | 10 |
| Fish Tsai | UCSD Two Running Violet V Forms | UCSD Vices and Virtues | 62 | -5 |
| Skand Parvatikar | Arizona State A | UCO | 62 | 10 |
| Karthik Jayaram | UCLA A | Claremont Pitzer | 64 | 10 |
| James Xiao | Toronto E | Waterloo | 64 | -5 |
| Yash Mandavia | Illinois A | Michigan B | 64 | -5 |
| Andrew Wu | Columbia C | Vassar A | 66 | 10 |
| Malachi Ledford | Tusculum | Virginia Tech B | 67 | 10 |
| Nathan Woolery | Louisville B | Chicago C | 68 | -5 |
| Mia Clark-Webb | Oxford B | Cambridge D | 69 | 10 |
| Drew Wetterlind | Iowa State | Macalester A | 70 | -5 |
| Alvin Guo | Chicago A | Kentucky | 71 | 10 |
| Scott Sibley | UCI | UCLA C | 73 | -5 |
| Jason Zhang | Toronto B | McGill A | 73 | 10 |
| Franklin Wu | Toronto C | Ottawa | 74 | -5 |
| Justin Drees | Notre Dame D | Purdue A | 74 | -5 |
| Andrew Fisher | Sheffield A | Southampton B | 74 | 10 |
| Liam Buck | St. Thomas | Minnesota B | 75 | -5 |
| Benny Shtutman | South Carolina B | Clemson B | 78 | -5 |
| Daniel Abrams | Rutgers C | Lehigh B | 78 | -5 |
| Coy Mier | Auburn B | Alabama B | 78 | -5 |
| Sawyer Smith | Mississippi State A | Huntsville B | 78 | -5 |
| Zachary Joseph | Columbia A | Rowan A | 80 | -5 |
| Dustin Sanders | Chicago D | Illinois C | 80 | 10 |
| Krishay Garg | UCLA D | UCSD What Hath God Wrought | 81 | -5 |
| Sam Kung | North Carolina C | Virginia Tech A | 81 | -5 |
| Nolan Jones | Purdue A | Notre Dame D | 81 | 10 |
| Chris Levesley | Warwick A | Durham A | 81 | 10 |
| Matthew Wozniak | Michigan C | Purdue C | 82 | 10 |
| Athan Juritsch | Toronto D | McMaster A | 83 | 10 |
| Nick Smemoe | North Carolina B | Liberty A | 85 | -5 |
| Brendan Bridle | Queen's A | McGill C | 87 | 10 |
| Jacob Finley | Notre Dame A | Louisville A | 87 | -5 |
| Will McCurley | Auburn A | Georgia Tech A | 87 | 10 |
| Samir Sarma | Georgia Tech D | Georgia Tech B | 89 | 10 |
| Denali Tran-Le | McGill B | Carleton | 90 | 10 |
| John Mitnik | Columbia B | Lehigh A | 90 | 10 |
| Young Fenimore Lee | Ohio | Iowa | 90 | 10 |
| Elijah Pollock | UTD A | Rose State | 90 | 10 |
| Tianyi Zheng | UCSD What Hath God Wrought | UCLA D | 93 | 10 |
| Samuel Zheng | Toronto F | Toronto J | 93 | 10 |
| Sumukh Murthy | UCSD Vices and Virtues | UCSD Two Running Violet V Forms | 94 | 10 |
| Michael Xu | McMaster C | Toronto I | 94 | -5 |
| Athena Devashish | Minnesota C | Wisconsin | 94 | 10 |
| James Wadsley | McGill D | Northwestern B | 94 | -5 |
| Jeremy Mau | Northwestern C | UTD B | 94 | -5 |
| Nick Fowler | Virginia B | James Madison | 95 | 10 |
| Caleb Slusher | South Carolina A | Liberty B | 95 | 10 |
| Josh Schmidt | Liberty A | North Carolina B | 95 | 10 |
| Ben Weng | Macalester B | Minnesota A | 95 | 10 |
| Gavin Markoff | Vanderbilt A | Vanderbilt B | 95 | -5 |
| Adithya Parat | McMaster B | Guelph B | 97 | -5 |
| Grant Koh | Michigan D | Illinois B | 98 | 10 |
| Yash Modi | Western Ontario | Queen's B | 99 | 10 |
| Theodore Lam | Toronto G | Toronto Metropolitan | 100 | 10 |
| Felix Garrett Johnston | Huntsville A | Alabama A | 100 | -5 |
| Amir Dolansky | Toronto H | Toronto K | 103 | 10 |
| Mats Miller | Chicago B | Notre Dame B | 104 | 10 |
| Ben Herbst | Notre Dame C | Indiana B | 104 | 10 |
| Alexander Mayans | Arizona State B | Tulsa | 104 | 10 |
| Keith Delarosa | UAB A | Sewanee A | 106 | 10 |
| Wesley Stine | Clemson A | Liberty C | 107 | -5 |
| Robert Szot | Nebraska | Carleton | 107 | -5 |
| Thomas Glotfelty | Virginia Tech A | North Carolina C | 108 | 10 |
| Zoe Wang | Carleton | Nebraska | 117 | 10 |
| Rahul Jogadhenu | UCLA C | UCI | 118 | 10 |
| Stephen Pace | Guelph B | McMaster B | 118 | 0 |
| Loukas Juritsch | Toronto I | McMaster C | 118 | 0 |
| Halee Carey | Ottawa | Toronto C | 118 | 0 |
| Gavin Ge | Waterloo | Toronto E | 118 | 10 |
| Gabriel Dodds—Captain | Liberty C | Clemson A | 118 | 0 |
| Henry Turner | Clemson B | South Carolina B | 118 | 0 |
| Rahul Rao-Pothuraju | Rowan A | Columbia A | 118 | 10 |
| Jack Stuhlman | Lehigh B | Rutgers C | 118 | 10 |
| Snehan Saroch | Louisville A | Notre Dame A | 118 | 10 |
| Sasha Tripathi | Chicago C | Louisville B | 118 | 10 |
| Dennis Yang | Michigan B | Illinois A | 118 | 10 |
| Simon Bennett | Macalester A | Iowa State | 118 | 10 |
| Anuk Dias | Minnesota B | St. Thomas | 118 | 10 |
| Stephen Walsh | Northwestern B | McGill D | 118 | 10 |
| Shreyas Sinha | Texas B | Northwestern A | 118 | 0 |
| Ryan Graham | Alberta B | Texas A | 118 | 10 |
| Amiya Zope | UTD B | Northwestern C | 118 | 0 |
| Liam McLaughlin | Alabama B | Auburn B | 118 | 0 |
| Jack Lewis | Bruin A | Georgia Tech C | 118 | 10 |
| Jackson McDonald | Alabama A | Huntsville A | 118 | 10 |
| Ethan Burks | Huntsville B | Mississippi State A | 118 | 0 |
| Brayden Zhang | Vanderbilt B | Vanderbilt A | 118 | 10 |