Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Matteo Petrera"'
Publikováno v:
Symmetry, Integrability and Geometry: Methods and Applications, Vol 4, p 077 (2008)
We construct Miura transformations mapping the scalar spectral problems of the integrable lattice equations belonging to the Adler-Bobenko-Suris (ABS) list into the discrete Schrödinger spectral problem associated with Volterra-type equations. We sh
Externí odkaz:
https://doaj.org/article/eb04e04d3cdd49aca581f7e0dd45955f
Autor:
Matteo Petrera, Orlando Ragnisco
Publikováno v:
Symmetry, Integrability and Geometry: Methods and Applications, Vol 3, p 058 (2007)
In the present paper we derive two well-known integrable cases of rigid body dynamics (the Lagrange top and the Clebsch system) performing an algebraic contraction on the two-body Lax matrices governing the (classical) su(2) Gaudin models. The proced
Externí odkaz:
https://doaj.org/article/5d9174ddeec2497f97e7d0b503990d65
Publikováno v:
Medical Science Educator. 33:363-367
Medical school is associated with increased mental health morbidity that can result in professional burnout. To explore the sources of stress and means of coping for medical students, the photo-elicitation method was utilized, with interviews being c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85673b6ca907bfbc6617959fde78d348
https://doi.org/10.1007/s40670-023-01758-3
https://doi.org/10.1007/s40670-023-01758-3
Publikováno v:
European Mathematical Society Magazine.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d970093a274bf423bc93fc3dc01d19b
https://doi.org/10.4171/mag/132
https://doi.org/10.4171/mag/132
Autor:
Matteo Petrera, Mats Vermeeren
Publikováno v:
European Journal of Mathematics. 7:741-765
We investigate the relation between pluri-Lagrangian hierarchies of 2-dimensional partial differential equations and their variational symmetries. The aim is to generalize to the case of partial differential equations the recent findings in Petrera a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dcf44b47e7be03514000e0ea747ea6d
https://doi.org/10.1007/s40879-020-00436-7
https://doi.org/10.1007/s40879-020-00436-7
Autor:
James J. Purtill, Rahul Goel, Matteo Petrera, Antonia F. Chen, Kier Blevins, Jonathan R. Danoff
Publikováno v:
Journal of the American Academy of Orthopaedic Surgeons. 28:e77-e85
INTRODUCTION Step counts measured by activity monitoring devices (AMDs) and smartphones (SPs) can objectively measure a patient's activity levels after total hip and knee arthroplasty (total joint arthroplasty [TJA]). This study investigated the use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc7f6aa5fd07b3a68b4be43e9cb90234
https://doi.org/10.5435/jaaos-d-18-00319
https://doi.org/10.5435/jaaos-d-18-00319
We study the problem of preservation of maximal canards for time discretized fast–slow systems with canard fold points. In order to ensure such preservation, certain favorable structure-preserving properties of the discretization scheme are require
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca67ac72a4027a4fca21a338b76024f4
https://doi.org/10.1007/s00332-021-09778-2
https://doi.org/10.1007/s00332-021-09778-2
Autor:
Yuri B. Suris, Matteo Petrera
Publikováno v:
Journal of Computational Dynamics. 6:401-408
Kahan discretization is applicable to any quadratic vector field and produces a birational map which approximates the shift along the phase flow. For a planar quadratic Hamiltonian vector field with a linear Poisson tensor and with a quadratic Hamilt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc8f37cd4e9fb5f4f1898595de511375
https://doi.org/10.3934/jcd.2019020
https://doi.org/10.3934/jcd.2019020
We contribute to the algebraic-geometric study of discrete integrable systems generated by planar birational maps: (a) we find geometric description of Manin involutions for elliptic pencils consisting of curves of higher degree, birationally equival
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e34d1f1e66f7f0f12dbefff128fdae95
http://arxiv.org/abs/2008.08308
http://arxiv.org/abs/2008.08308
Kahan discretization is applicable to any system of ordinary differential equations on $\mathbb R^n$ with a quadratic vector field, $\dot{x}=f(x)=Q(x)+Bx+c$, and produces a birational map $x\mapsto \widetilde{x}$ according to the formula $(\widetilde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3210f8853c37d93ff1981800f6cc665
http://arxiv.org/abs/2003.12596
http://arxiv.org/abs/2003.12596