کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4606709 | 1337723 | 2007 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Contact symmetries of the Helmholtz form
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
آنالیز ریاضی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, vector fields which are symmetries of the contact ideal are studied. It is shown that contact symmetries of the Helmholtz form transform a dynamical form to a dynamical form which is variational (i.e. comes as the Euler–Lagrange form from a Lagrangian). The case of dynamical forms representing first-order classes in the variational sequence is analysed in detail, which means, by the variational sequence theory, that systems of ordinary differential equations of order ⩽3 are concerned.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Differential Geometry and its Applications - Volume 25, Issue 5, October 2007, Pages 518–542
Journal: Differential Geometry and its Applications - Volume 25, Issue 5, October 2007, Pages 518–542
نویسندگان
Demeter Krupka, Olga Krupková, Geoff Prince, Willy Sarlet,