activity
20242026
collaborators

13 papers

math.DG2026

Diffeologies on Locally Convex Spaces and Smooth Multiplication of Distributions

Alireza Ahmadi, Bijan Davvaz, Jean-Pierre Magnot

We investigate the canonical and -diffeologies on Hausdorff locally convex spaces and their applications to Schwartz distributions. We prove that a Hausdorff locally conv…

physics.gen-ph2026

Pairwise-comparison-valued cosurfaces: a projective framework for multi-scale relational structures

Jean-Pierre Magnot

We introduce cosurfaces with values in the group \(\PC_n(H)\) of \(H\)-valued reciprocal pairwise comparison matrices. The composition law is covariant on upper triangular coeffici…

stat.ML2026

Noisy Nonreciprocal Pairwise Comparisons: Scale Variation, Noise Calibration, and Admissible Ranking Regions

Jean-Pierre Magnot

Pairwise comparisons are widely used in decision analysis, preference modeling, and evaluation problems. In many practical situations, the observed comparison matrix is not recipro…

nlin.SI2026

Effective dynamics and defect expansions for polynomial PDEs on thin annuli

Jean-Pierre Magnot

We develop a geometric and analytic framework for polynomial partial differential equations posed on thin annuli in the plane. Using renormalized Sobolev inner products, we constru…

math-ph2026

A Lorentzian SU(3)-covariant noncommutative KP hierarchy and hypercomplex gauge fields

Jean-Pierre Magnot

We propose a formal framework for a noncommutative Kadomtsev--Petviashvili (KP) hierarchy which is covariant under the action of and compatible with a Lorentzian structure…

math.GM2025

Preliminaries on Pre-Hilbert Structures on Polynomial Spaces and Associated Laplacians

Jean-Pierre Magnot

We study orthogonal polynomial systems arising from general pre-Hilbert inner products on polynomial spaces, beyond the classical framework of measures. To each such inner product…