Page 181 - Special Topic Session (STS) - Volume 4
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STS579 Daria Balashova
            exceed the number of branching sources with positive intensity, the maximum
            of these eigenvalues is simple.
                In addition, we can calculate critical values   for the intensity of sources,
                                                           
            depending on which process will be subcritical, critical or supercritical:









            Consider  on ℤ  with 3 sources: (1,0,0), (0,1,0) and (0,0,1).
                                3
            We  find  the  values   =  1.514  and   :=  ((1, 0,  0),  (0,  1,  0))  =...  =  ((0,
                                                 ̃
                                                       0
                                                                                   0
                                 0
                                                 0
            1,0),(0,0,1)) = 0.328. Let   is a smaller positive root of the equation
                                     



            for


            and for








            the  are supercritical.
            Consider  on ℤ   with 4 sources: (1,0,0,0), (0,1,0,0), (0,0,1,0) and (0,0,0,1).
                                4
            We find the values   = 1.234 and   :=  ((1, 0, 0, 0), (0, 1, 0, 0)) =... =
                                               ̃
                                                     0
                                               0
                                0
             ((0, 0, 1, 0), (0, 0, 0, 1)) = 0.102.
              0
            The  is supercritical for


            and for





            The research was supported by the , project no. 17-01-00468.



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