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Main Authors: Giotopoulos, Grigorios, Khavkine, Igor, Sati, Hisham, Schreiber, Urs
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2601.15862
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author Giotopoulos, Grigorios
Khavkine, Igor
Sati, Hisham
Schreiber, Urs
author_facet Giotopoulos, Grigorios
Khavkine, Igor
Sati, Hisham
Schreiber, Urs
contents We have previously observed that the theory of solutions of partial differential equations, regarded as diffieties inside jet bundles, acquires a powerful comonadic formulation after passage from the category of Fréchet smooth manifolds to the Cahiers topos of formal smooth sets (a well-adapted model for Synthetic Differential Geometry). However, the tacit assumption that this passage preserves the projective limits that define infinite jet bundles had remained unproven. Here we provide a detailed proof.
format Preprint
id arxiv_https___arxiv_org_abs_2601_15862
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Synthetic Differential Jet Bundles are Reduced
Giotopoulos, Grigorios
Khavkine, Igor
Sati, Hisham
Schreiber, Urs
Differential Geometry
Mathematical Physics
Category Theory
Primary: 58A03, 51K10, Secondary: 18F15, 35A30
We have previously observed that the theory of solutions of partial differential equations, regarded as diffieties inside jet bundles, acquires a powerful comonadic formulation after passage from the category of Fréchet smooth manifolds to the Cahiers topos of formal smooth sets (a well-adapted model for Synthetic Differential Geometry). However, the tacit assumption that this passage preserves the projective limits that define infinite jet bundles had remained unproven. Here we provide a detailed proof.
title Synthetic Differential Jet Bundles are Reduced
topic Differential Geometry
Mathematical Physics
Category Theory
Primary: 58A03, 51K10, Secondary: 18F15, 35A30
url https://arxiv.org/abs/2601.15862