sig sai 2013 03 12 5 Recent site activity jsaisigsai
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This “index jumping” phenomenon in order to stay on a “continuous eigenvalue branch” is quite general: It applies to all simple eigenvalues for all boundary conditions on the jump
It is suggested by our method that most of the quadratic algebras for all St¨ ackel equivalence classes of 3D second order quantum superintegrable systems on conformally flat
In particular, we consider a reverse Lee decomposition for the deformation gra- dient and we choose an appropriate state space in which one of the variables, characterizing the
The key point is the concept of a Hamiltonian system, which, contrary to the usual approach, is not re- lated with a single Lagrangian, but rather with an Euler–Lagrange form
Inside this class, we identify a new subclass of Liouvillian integrable systems, under suitable conditions such Liouvillian integrable systems can have at most one limit cycle, and
Similarly, an important result of Garsia and Reutenauer characterizes which elements of the group algebra k S n belong to the descent algebra Sol( A n−1 ) in terms of their action
Taking care of all above mentioned dates we want to create a discrete model of the evolution in time of the forest.. We denote by x 0 1 , x 0 2 and x 0 3 the initial number of
When relativistic quantum mechanics and field the- ory emerged, the half-integer internal angular momentum was interpreted in terms of the complex special linear group SL(2, C ) as