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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

Stochastic population growth in spatially heterogeneous environments. [PDF]

open access: yesJ Math Biol, 2013
Evans SN, Ralph PL, Schreiber SJ, Sen A.
europepmc   +1 more source

A new class of pseudo-differential operators. [PDF]

open access: yesProc Natl Acad Sci U S A, 1978
Nagel A, Stein EM.
europepmc   +1 more source

HYPOELLIPTICITY OF NONLINEAR PARTIAL DIFFERENTIAL EQUATIONS

open access: yesHYPOELLIPTICITY OF NONLINEAR PARTIAL DIFFERENTIAL EQUATIONS
openaire  

On Solvability of Regular Hypoelliptic Equations in ℝn

Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences), 2018
In this paper the unique solvability of regular hypoelliptic equations in multianisotropic weighted functional spaces is proved by means of special integral representation of functions through a regular operator. The existence of the solutions is proved by constructing approximate solutions using multianisotropic integral operators.
G. Karapetyan, H. A. Petrosyan
semanticscholar   +3 more sources

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