Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Ruffino, Paulo R."'
This article extends a strong averaging principle for L\'evy diffusions which live on the leaves of a foliated manifold subject to small transversal L\'evy type perturbation to the case of non-compact leaves. The main result states that the existence
Externí odkaz:
http://arxiv.org/abs/1802.01456
Let $M$ be a compact manifold equipped with a pair of complementary foliations, say horizontal and vertical. In Catuogno, Silva and Ruffino ($Stoch$. $Dyn$., 2013) it is shown that, up to a stopping time $\tau$, a stochastic flow of local diffeomorph
Externí odkaz:
http://arxiv.org/abs/1511.01376
Consider a manifold $M$ endowed locally with a pair of complementary distributions $\Delta^H \oplus \Delta^V=TM$ and let $\text{Diff}(\Delta^H, M)$ and $\text{Diff}(\Delta^V, M)$ be the corresponding Lie subgroups generated by vector fields in the co
Externí odkaz:
http://arxiv.org/abs/1504.06562
Autor:
Morgado, Leandro, Ruffino, Paulo R.
In this article we propose a model for stochastic delay differential equation with jumps (SDDEJ) in a differentiable manifold $M$ endowed with a connection $\nabla$. In our model, the continuous part is driven by vector fields with a fixed delay and
Externí odkaz:
http://arxiv.org/abs/1503.05772
Publikováno v:
Stochastics and Dynamics 2022
This article refines the classical notion of a stochastic D-bifurcation to the respective family of n-point motions for homogeneous Markovian stochastic semiflows, such as stochastic Brownian flows of homeomorphisms, and their generalizations. This n
Externí odkaz:
http://arxiv.org/abs/1502.07915
Autor:
Morgado, Leandro, Ruffino, Paulo R.
Let $M$ be a manifold equipped (locally) with a pair of complementary foliations. In Catuogno, da Silva and Ruffino (Stoch. Dyn. 2013), it is shown that, up to a stopping time $\tau$, a stochastic flow of local diffeomorphisms $\varphi_t$ in $M$ can
Externí odkaz:
http://arxiv.org/abs/1408.6765
Autor:
Ruffino, Paulo R.
We consider an $\epsilon K$ transversal perturbing vector field in a foliated Brownian motion defined in a foliated tubular neighbourhood of an embedded compact submanifold in $\R^3$. We study the effective behaviour of the system under this $\epsilo
Externí odkaz:
http://arxiv.org/abs/1408.1154
Autor:
Ruffino, Paulo R. C.
We present initially the motivation, definition and basic properties of differential equations with proportional delay. In the last Section we present open problems.
Comment: In Portuguese
Comment: In Portuguese
Externí odkaz:
http://arxiv.org/abs/1405.6304
Autor:
Högele, Michael, Ruffino, Paulo R
This article studies the dynamics of the strong solution of a SDE driven by a discontinuous L\'evy process taking values in a smooth foliated manifold with compact leaves. It is assumed that it is \textit{foliated} in the sense that its trajectories
Externí odkaz:
http://arxiv.org/abs/1405.6305
Autor:
Ruffino, Paulo R. C.
Publikováno v:
Randon Operators and Stochastic Equations, Vol. 8, nr. 2, 175-188, 2000
We prove an ergodic theorem for the rotation number of the composition of a sequence os stationary random homeomorphisms in $S^{1}$. In particular, the concept of rotation number of a matrix $g\in Gl^{+}(2,{\R})$ can be generalized to a product of a
Externí odkaz:
http://arxiv.org/abs/1404.5661