Results 81 to 90 of about 1,209,225 (153)

Boundedness of weak solutions to degenerate Kolmogorov equations of hypoelliptic type in bounded domains [PDF]

open access: yes
We establish the boundedness of weak subsolutions for a class of degenerate Kolmogorov equations of hypoelliptic type, compatible with a homogeneous Lie group structure, within bounded product domains using the De Giorgi iteration.
Hou, Mingyi
core   +2 more sources

Approximation of SDEs: a stochastic sewing approach. [PDF]

open access: yesProbab Theory Relat Fields, 2021
Butkovsky O, Dareiotis K, Gerencsér M.
europepmc   +1 more source

On a class of hypoelliptic evolution operators

open access: yes, 1994
We show that Hypoelliptic Kolmogorov equations are invariant with respect to a suitable Lie group structure. We prove a Harnack inequality which is invariant with respet to the Lie group structure.
E. Lanconelli, POLIDORO, Sergio
core  

Dynamical landscape and multistability of a climate model. [PDF]

open access: yesProc Math Phys Eng Sci, 2021
Margazoglou G   +3 more
europepmc   +1 more source

Taming the spread of an epidemic by lockdown policies. [PDF]

open access: yesJ Math Econ, 2021
Federico S, Ferrari G.
europepmc   +1 more source

Functional equations and hypoellipticity

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 1982
Tsutsumi, Akira, Haruki, Shigeru
openaire   +2 more sources

A variational principle for hypoelliptic equations with constant coefficients

open access: yes, 2020
A variational method for solving hypoelliptic equations with constant coefficients of the following type: \[ \sum_{| \alpha | \leq m}a_{\alpha} D^{\alpha} u(x)=g(x),\quad x\in \Omega \subset R^ n;\quad \frac{\partial^ ju}{\partial n^ j}=0,\quad j=0,1,...,K,\quad x\in \partial \Omega. \] (\(\Omega\) is a bounded domain) is presented.
openaire   +2 more sources

Higher-order hypoelliptic damped wave equations on graded Lie groups with data from negative order Sobolev spaces : the critical case

open access: yes
Let G be a graded Lie group with homogeneous dimension . In this paper, we study the Cauchy problem for a semilinear hypoelliptic damped wave equation involving a positive Rockland operator R of homogeneous degree on G with power type nonlinearity and ...
Mondal, Shyam Swarup   +3 more
core  

The Ornstein-Uhlenbeck semigroup in finite dimension. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2020
Lunardi A, Metafune G, Pallara D.
europepmc   +1 more source

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