My primary research interests are prime characteristic methods in commutative algebra and algebraic geometry, and especially Frobenius actions on local cohomology and various degrees of nilpotence they may have. This work has a strong relationship to uniformity properties for Frobenius closure and tight closure of ideals, including the existence of Frobenius test exponents. Furthermore, with recent work with Srishti Singh (see below) I have developed algorithms to effectively compute Frobenius closure of ideals in affine semigroup rings.
"F-singularities of amalgamated algebras along an ideal" with Souvik Dey, in preparation
"A Buchsbaum theory for Frobenius closure" with Kriti Goel, Lance Edward Miller, Pham Hung Quy, and Austyn Simpson, in preparation
"F-rational rings and rational singularities" with Florian Enescu, to appear in Contemporary Mathematics
"The weak normalization of an affine semigroup" with Srishti Singh, preprint arXiv: 2505.10707
"New versions of Frobenius and integral closure of ideals" with Kriti Goel and William D. Taylor, preprint arXiv: 2410:10990
"Counting geometric branches via the Frobenius map and F-nilpotent singularities" with Hailong Dao and Vaibhav Pandey; Nagoya Mathematical Journal. 2024;255:724-741. (arXiv link)
"Rees algebras and generalized depth-like conditions in prime characteristic" with Alessandra Costantini and Lance Edward Miller; Math. Nachr. 297 (2024), 783–802 (arXiv link)
"Homological properties of pinched Veronese rings" with Vaibhav Pandey; J. Algebra 614 (2023), 307-329 (arXiv link)
"Generalized F-depth and graded nilpotent singularities" with Lance Edward Miller; Communications in Algebra (2024) 1-25 (arXiv link)
"F-nilpotent rings and permanence properties" with Jennifer Kenkel, Thomas Polstra, and Austyn Simpson; J. Commut. Algebra 15(4): 559-575 (Winter 2023) (arXiv link)
"A sufficient condition for finiteness of Frobenius test exponents" Proc. Amer. Math. Soc. 147 (2019), 5083-5092 (arXiv link)
AMS Spring 2025 Central Sectional Meeting "Buchsbaum theories for Frobenius and tight closure" (Spring 2025)
AMS Fall 2025 Eastern Virtual Sectional Meeting "New versions of Frobenius and integral closures of ideals" (Fall 2025)
University of Michigan Commutative Algebra seminar "A Buchsbaum theory for Frobenius closure" (Fall 2025)
Joint Mathematics Meetings, AMS Special Session on Advances in Commutative Algebra "New versions of Frobenius and integral closures of ideals" (Spring 2026)
University of New Mexico Algebra/Geometry Seminar "Buchsbaum theories for Frobenius and tight closure" (Fall 2024)
University of Alabama Algebra Seminar "New versions of Frobenius and integral closures of ideals" (Fall 2024)
AMS Fall 2024 Southeastern Sectional Meeting "New versions of Frobenius and integral closures of ideals" (Fall 2024 Cancelled due to damage from Hurricane Helene)
Iowa State University Algebra Seminar "New versions of Frobenius and integral closures of ideals" (Fall 2024)
Georgia State University Algebra Seminar "F-singularities of amalgamated algebras along an ideal" (Spring 2024)
AMS Spring Southeastern Sectional Meeting "Counting geometric branches via Frobenius" (Spring 2023)
Workshop on Commutative Algebra, Algebraic Geometry, and Related Topics "Homological properties of pinched Veronese rings" (Fall 2022)
ICTP Graduate Course on Tight Closure and its Applications, F-rational rings tutorial for Florian Enescu (Summer 2022)
KUMUNU 2021 "Nilpotent singularity types in prime characteristic" (Spring 2022)