منابع مشابه
The Symmetries of Equivalent Lagrangian Systems and Constants of Motion
In this paper Mathematical structure of time-dependent Lagrangian systems and their symmetries are extended and the explicit relation between constants of motion and infinitesimal symmetries of time-dependent Lagrangian systems are considered. Starting point is time-independent Lagrangian systems ,then we extend mathematical concepts of these systems such as equivalent lagrangian systems to th...
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For second countable locally compact Hausdorff groupoids, the property of possessing a Haar system is preserved by equivalence.
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Nuclear singlet states may display lifetimes that are an order of magnitude greater than conventional relaxation times. Existing methods for accessing these long-lived states require a resolved chemical shift difference between the nuclei involved. Here, we demonstrate a new method for accessing singlet states that works even when the nuclei are almost magnetically equivalent, such that the che...
متن کاملthe symmetries of equivalent lagrangian systems and constants of motion
in this paper mathematical structure of time-dependent lagrangian systems and their symmetries are extended and the explicit relation between constants of motion and infinitesimal symmetries of time-dependent lagrangian systems are considered. starting point is time-independent lagrangian systems ,then we extend mathematical concepts of these systems such as equivalent lagrangian systems to the...
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For two differential systems, an algorithm which permits us to say whether reflecting functions of these systems coincide or not is given. It allows studying qualitative properties of these two systems simultaneously. © 2009 Elsevier Ltd. All rights reserved.
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ژورنال
عنوان ژورنال: Studia Mathematica
سال: 1970
ISSN: 0039-3223,1730-6337
DOI: 10.4064/sm-38-1-373-379