3 papers
math.RT2025
On the Direct Problem in Differential Galois Theory for the Classical Groups
Daniel Robertz, Matthias Seiss
Let be a classical group of Lie rank and let be an algebraically closed field of characteristic zero. For differential indeterminates $\boldsymbol{v}=(v_1,\dots,v_l…
math.AC2025
Iterated and Generalized Iterated Integrals
Chitrarekha Sahu, Matthias Seiss, Varadharaj Ravi Srinivasan
For a differential field having an algebraically closed field of constants, we analyze the structure of Picard-Vessiot extensions of whose differential Galois groups are un…
math.DS2024
Identifying Markov chain models from time-to-event data: an algebraic approach
Ovidiu Radulescu, Dima Grigoriev, Matthias Seiss +3
Many biological and medical questions can be modeled using time-to-event data in finite-state Markov chains, with the phase-type distribution describing intervals between events. W…