| Pagaria, Roberto | Pisa | New developments in matroid theory Presenter |
| Pajdla, Tomas | Czech Technical University in Prague; CIIRC, CTU Prague | Algebraic vision Chair Algebraic vision Presenter Algebraic vision Chair |
| Pan, Victor | Lehman College CUNY | Symbolic-numeric methods for non-linear equations: Algorithms and applications Presenter |
| Panina, Gaiane | St. Petersburg Department of Steklov Mathematical Institute, Russia | Algebraic geometry for kinematics, mechanism science, and rigidity Presenter |
| Panizzut, Marta | Technische Universität Berlin | Computational tropical geometry Presenter |
| Panny, Lorenz | Eindhoven University of Technology, Netherlands, The | Isogenies in Cryptography Chair Isogenies in Cryptography Presenter Isogenies in Cryptography Isogenies in Cryptography Chair Isogenies in Cryptography Chair Isogenies in Cryptography Chair |
| Pantea, Casian | West Virginia University | Algebraic aspects of biochemical reaction networks Presenter |
| Parrilo, Pablo A. | Massachusetts Institute of Technology, United States of America | Pablo A. Parrilo: Switched linear systems and infinite products of matrices |
| Parshall, Hans | Ohio State University | Algebra, geometry, and combinatorics of subspace packings Presenter |
| Pasley Simon, Faye | North Carolina State University | Computational tropical geometry |
| Pataki, Gabor | University of North Carolina at Chapel Hill, NC, USA | Polynomial optimization and its applications Presenter |
| Patania, Alice | Indiana University | Applications of topology in neuroscience Presenter |
| Pausinger, Florian | Queen's Univeristy Belfast | Geometry and topology in applications. Presenter |
| Pawłoski, Marcin | University of Gdansk | Algebra, geometry, and combinatorics of subspace packings Presenter |
| Pendavingh, Rudi | TU Eindhoven | New developments in matroid theory Presenter |
| Perlner, Ray | NIST | Polynomial equations in coding theory and cryptography Presenter |
| Persichetti, Edoardo | Florida Atlantic University | Coding theory and cryptography Presenter |
| Peters, Jonas | University of Copenhagen | Graphical models Presenter Jonas Peters: Data Science and Causality |
| Peterson, Chris | Colorado State University, United States of America | Grassmann and flag manifolds in data analysis Chair Grassmann and flag manifolds in data analysis Chair Numerical methods for structured polynomial system solving Random geometry and topology Presenter |
| Petit, Christophe | Birmingham University | Isogenies in Cryptography Presenter |
| Petrovic, Sonja | IIT | Algebraic statistics Presenter |
| Petzoldt, Albrecht | University of Versailles | Polynomial equations in coding theory and cryptography Presenter |
| Pfeffer, Max | Max Planck Institute MiS, Leipzig, Germany; MPI Leipzig | Matrix and tensor optimization Chair Matrix and tensor optimization Chair Signature tensors of paths Presenter |
| Pfreundt, Franz-Josef | Fraunhofer ITWM | Massively parallel computations in algebraic geometry |
| Pilaud, Vincent | École polytechnique | Cluster algebras and positivity |
| Pinto, Raquel | University of Aveiro | Coding theory and cryptography Presenter |
| Piontek, Roland Daniel | TU Dortmund University, Germany | Welcome reception and poster session |
| Plaumann, Daniel | Technische Universität Dortmund | Algebraic methods for convex sets Chair Algebraic methods for convex sets Chair Algebraic methods for convex sets Chair |
| Plesa, Tomislav | Imperial College | Stochastic chemical reaction networks Presenter |
| Pllaha, Tefjol | Aalto University | Coding theory and cryptography Presenter |
| Pogudin, Gleb | New York University, United States of America | Welcome reception and poster session |
| Polonik, Wolfgang | UC David | Integral and algebraic geometric methods in the study of Gaussian random fields Presenter |
| Poly, Guillaume | Université de Rennes I | Integral and algebraic geometric methods in the study of Gaussian random fields Presenter |
| Potechin, Aaron | University of Chicago | Structured sums of squares Presenter |
| Pottmann, Helmut | KAUST, Saudi Arabia | Geometric design for fabrication Chair Helmut Pottman: Applications of sphere geometries in computational design |
| Preiss, Rosa | TU Berlin | Signature tensors of paths Presenter |
| Pressland, Matthew | Universität Stuttgart, D | Cluster algebras and positivity Presenter |
| Pryhuber, Andrew | University of Washington | Algebraic vision Presenter |
| Pycke, Jean-Renaud | Université d'Évry Val d'Essonne | Integral and algebraic geometric methods in the study of Gaussian random fields Presenter |