Zobrazeno 1 - 10
of 227
pro vyhledávání: '"YOSHIDA, Nobuo"'
Autor:
Mine, Takuya, Yoshida, Nobuo
We consider an operator $P_V=(1+V)P$ on $\ell^2(Z^d)$, where $P$ is the transition operator of a symmetric irreducible random walk, and $V$ is a ``sparse'' potential. We first characterize the essential spectra of this operator. Secondly, we prove th
Externí odkaz:
http://arxiv.org/abs/2403.07345
Limiting results for the free energy of directed polymers in random environment with unbounded jumps
Publikováno v:
Journal of Statistical Physics, Volume 161, Issue 3, pp 577-597, 2015
We study asymptotics of the free energy for the directed polymer in random environment. The polymer is allowed to make unbounded jumps and the environment is given by Bernoulli variables. We first establish the existence and continuity of the free en
Externí odkaz:
http://arxiv.org/abs/1504.04505
Autor:
Comets, Francis, Yoshida, Nobuo
Publikováno v:
Comm. Math. Phys. 323 (2013) 417-447
We study a model of directed polymers in random environment in dimension $1+d$, given by a Brownian motion in a Poissonian potential. We study the effect of the density and the strength of inhomogeneities, respectively the intensity parameter $\nu$ o
Externí odkaz:
http://arxiv.org/abs/1206.1231
Autor:
Fukushima, Ryoki, Yoshida, Nobuo
Publikováno v:
ALEA, Latin American Journal of Probability and Mathematical Statistics, vol. 9, no. 2, 323-336 (2012)
We consider a class of stochastic growth models on the integer lattice which includes various interesting examples such as the number of open paths in oriented percolation and the binary contact path process. Under some mild assumptions, we show that
Externí odkaz:
http://arxiv.org/abs/1205.6559
Autor:
Yoshida, Nobuo
Publikováno v:
Annals of Applied Probability 2012, Vol. 22, No. 3, 1215-1242
We consider a stochastic partial differential equation (SPDE) which describes the velocity field of a viscous, incompressible non-Newtonian fluid subject to a random force. Here, the extra stress tensor of the fluid is given by a polynomial of degree
Externí odkaz:
http://arxiv.org/abs/1009.2136
Autor:
Terasawa, Yutaka, Yoshida, Nobuo
Publikováno v:
Annals of Applied Probability 2011, Vol. 21, No. 5, 1827-1859
We consider a stochastic partial differential equation (SPDE) which describes the velocity field of a viscous, incompressible non-Newtonian fluid subject to a random force. Here the extra stress tensor of the fluid is given by a polynomial of degree
Externí odkaz:
http://arxiv.org/abs/1002.1431
Autor:
Nagahata, Yukio, Yoshida, Nobuo
We consider a class of continuous-time stochastic growth models on $d$-dimensional lattice with non-negative real numbers as possible values per site. We remark that the diffusive scaling limit proven in our previous work [Nagahata, Y., Yoshida, N.:
Externí odkaz:
http://arxiv.org/abs/0909.3560
Autor:
Nagahata, Yukio, Yoshida, Nobuo
We consider a class of continuous-time stochastic growth models on $d$-dimensional lattice with non-negative real numbers as possible values per site. The class contains examples such as binary contact path process and potlatch process. We show the e
Externí odkaz:
http://arxiv.org/abs/0907.4200
Autor:
Comets, Francis, Yoshida, Nobuo
We study the survival probability and the growth rate for branching random walks in random environment (BRWRE). The particles perform simple symmetric random walks on the $d$-dimensional integer lattice, while at each time unit, they split into indep
Externí odkaz:
http://arxiv.org/abs/0907.0509
Autor:
Yoshida, Nobuo
We consider a discrete-time stochastic growth model on the $d$-dimensional lattice with non-negative real numbers as possible values per site. The growth model describes various interesting examples such as oriented site/bond percolation, directed po
Externí odkaz:
http://arxiv.org/abs/0810.4218