Difference Mean-Value Formula for a Two-Dimensional Linear Fourth Order Hyperbolic Equation

2016 ◽  
Vol 219 (2) ◽  
pp. 203-207 ◽  
Author(s):  
V. Z. Meshkov ◽  
Yu. D. Ermakova ◽  
I. P. Polovinkin
Keyword(s):  
Hyperbolic Equation ◽  
Fourth Order ◽  
Mean Value ◽  
Two Dimensional ◽  
Order Hyperbolic Equation ◽  
Mean Value Formula

An alternating motion with stops and the related planar, cyclic motion with four directions

2003 ◽  
Vol 35 (4) ◽  
pp. 1153-1168 ◽  
Author(s):  
S. Leorato ◽  
E. Orsingher ◽  
M. Scavino
Keyword(s):  
Hyperbolic Equation ◽  
Order Statistics ◽  
Differential System ◽  
Fourth Order ◽  
Random Motion ◽  
One Dimensional ◽  
Cyclic Motion ◽  
Order Hyperbolic Equation

In this paper we study a planar random motion (X(t), Y(t)), t>0, with orthogonal directions taken cyclically at Poisson paced times. The process is split into one-dimensional motions with alternating displacements interrupted by exponentially distributed stops. The distributions of X = X(t) (conditional and nonconditional) are obtained by means of order statistics and the connection with the telegrapher's process is derived and discussed. We are able to prove that the distributions involved in our analysis are solutions of a certain differential system and of the related fourth-order hyperbolic equation.

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