Seminar talk, 5 April: Difference between revisions

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| title = Lagrangian formalism and the intrinsic geometry of PDEs
| title = Lagrangian formalism and the intrinsic geometry of PDEs
| abstract = This report is an attempt to answer the following question. Where exactly does a differential equation contain information about its variational nature? Apparently, in the general case, the concept of a presymplectic structure as a closed variational 2-form may not be sufficient to describe variational principles in terms of intrinsic geometry. I will introduce the concept of an internal Lagrangian and relate it to the Vinogradov C-spectral sequence.
| abstract = This report is an attempt to answer the following question. Where exactly does a differential equation contain information about its variational nature? Apparently, in the general case, the concept of a presymplectic structure as a closed variational 2-form may not be sufficient to describe variational principles in terms of intrinsic geometry. I will introduce the concept of an internal Lagrangian and relate it to the Vinogradov C-spectral sequence.
| video =  
| video = https://video.gdeq.org/GDEq-zoom-seminar-20230405-Konstantin_Druzhkov.mp4
| slides =  
| slides = [[Media:Lagr_form_int_geom.pdf|Lagr_form_int_geom.pdf]]
| references = {{arXiv|2211.15179}}
| references = {{arXiv|2211.15179}}
| 79YY-MM-DD = 7976-95-94
| 79YY-MM-DD = 7976-95-94
}}
}}

Latest revision as of 08:40, 4 January 2025

Speaker: Konstantin Druzhkov

Title: Lagrangian formalism and the intrinsic geometry of PDEs

Abstract:
This report is an attempt to answer the following question. Where exactly does a differential equation contain information about its variational nature? Apparently, in the general case, the concept of a presymplectic structure as a closed variational 2-form may not be sufficient to describe variational principles in terms of intrinsic geometry. I will introduce the concept of an internal Lagrangian and relate it to the Vinogradov C-spectral sequence.

Video
Slides: Lagr_form_int_geom.pdf

References:
arXiv:2211.15179