18 citations · 50 across the 14 of their papers we have counts for
4 papers · 1 filter
Analytical and numerical solutions to ergodic control problems arising in environmental management
Hidekazu Yoshioka, Motoh Tsujimura, Yuta Yaegashi
Environmental management optimizing a long-run objective is an ergodic control problem whose resolution can be achieved by solving an associated non-local Hamilton-Jacobi-Bellman (…
HJB and Fokker-Planck equations for river environmental management based on stochastic impulse control with discrete and random observation
H. Yoshioka, M. Tsujimura, K. Hamagami +2
We formulate a new two-variable river environmental restoration problem based on jump stochastic differential equations (SDEs) governing the sediment storage and nuisance benthic a…
A generalized stochastic control problem of bounded noise process under ambiguity arising in biological management
H. Yoshioka, M. Tsujimura
The objectives and contributions of this paper are mathematical and numerical analyses of a stochastic control problem of bounded population dynamics under ambiguity, an important…
A random observation-based management model of population dynamics and its ecological application
Hidekazu Yoshioka, Yuta Yaegashi, Motoh Tsujimura
A new stochastic control problem of population dynamics under partial observation is formulated and analyzed both mathematically and numerically, with an emphasis on environmental…