D-modules and holonomic functions

AL Sattelberger, B Sturmfels - arxiv preprint arxiv:1910.01395, 2019 - arxiv.org
In algebraic geometry, one studies the solutions to polynomial equations, or, equivalently, to
linear partial differential equations with constant coefficients. These lecture notes address …

Nonlinear algebra and applications

P Breiding, TÖ Çelik, T Duff, A Heaton, A Maraj… - arxiv preprint arxiv …, 2021 - arxiv.org
We showcase applications of nonlinear algebra in the sciences and engineering. Our review
is organized into eight themes: polynomial optimization, partial differential equations …

Algebraic analysis of rotation data

MF Adamer, AC Lőrincz, AL Sattelberger, B Sturmfels - Algebraic Statistics, 2020 - msp.org
We develop algebraic tools for statistical inference from samples of rotation matrices. This
rests on the theory of D-modules in algebraic analysis. Noncommutative Gröbner bases are …

One answer to an open problem on the monotonicity of Gaussian hypergeometric functions with respect to parameters

Q Bao, MK Wang, YA Zhang - Revista de la Real Academia de Ciencias …, 2022 - Springer
The authors prove that for arbitrarily given b∈(0,∞), r∈(0, 1) and n∈ N 0, and for λ∈ R, the
functions a↦ F (a, b; a+ b; r) a λ and a↦ F (a, b; a+ b; r)-∑ k= 0 n (a, k)(b, k)(a+ b, k) k! rka λ …

[PDF][PDF] Introduction to Algebraic Analysis

AL Sattelberger - 2024 - alsattelberger.de
These are the lecture notes of the graduate level course “D-Modules and Holonomic
Functions” taught by the author in the fall term 2023 at KTH and Stockholm University, and …

[PDF][PDF] Applied Algebraic Analysis

AL Sattelberger - 2024 - alsattelberger.de
Theses are the lecture notes of the graduate level course “D-Modules and Holonomic
Functions” at KTH and Stockholm University taught by the author in the fall term 2023. The …

[PDF][PDF] Algebraic Analysis and Applications

AL Sattelberger - alsattelberger.de
The Weyl algebra D= C [x1,..., xn]〈∂ 1,...,∂ n〉 is the free algebra over C generated by
x1,..., xn,∂ 1,...,∂ n, modulo the following relations. All generators commute except of xi …

[PDF][PDF] Algebraic Analysis of the Hypergeometric Function 1F1 of a Matrix Argument

AL Sattelberger - 2020 - alsattelberger.de
▶ 1F1 related to distribution of largest eigenvalue of Wishart matrices▶ stated in Muirhead's
book [8]▶ holonomic gradient method in [4]▶ 0F1 related to the Fisher distribution▶ …