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Showing 2006Show all
3 papers · 1 filter
math.AP2006★ 3 cited
Dirichlet forms and degenerate elliptic operators
A. F. M. ter Elst, Derek W. Robinson, Adam Sikora +1
It is shown that the theory of real symmetric second-order elliptic operators in divergence form on $\Ri^d$ can be formulated in terms of a regular strongly local Dirichlet form ir…
math.AP2006
Positivity and strong ellipticity
A. F. M. ter Elst, Derek W. Robinson, Yueping Zhu
We consider second-order partial differential operators in divergence form on $\Ri^d$ with a positive-semidefinite, symmetric, matrix of real -coefficients and es…
math.AP2006
Second-order operators with degenerate coefficients
A. F. M. ter Elst, Derek W. Robinson, Adam Sikora +1
We consider properties of second-order operators on $\Ri^d$ with bounded real symmetric measurable coefficients. We assume…