Abstract:We prove the long time existence and uniqueness of solution to a parabolic Monge-Ampère type equation on compact Hermitian manifolds. We also show that the normalization of the solution converges to a smooth function in the smooth topology as t approaches infinity which, up to scaling, is the solution to a Monge-Ampère type equation. This gives a parabolic proof of the Gauduchon conjecture based on the solution of Székelyhidi, Tosatti and Weinkove to this conjecture.2010 Mathematics Subject Classification. 53C… Show more
“…The (n − 1)-plurisubharmonic flow is in some aspects similar to the flow considered in this paper, since its definition depends on the choice of a background metric. But in contrast to (1), (17) does not necessarily preserve the balanced condition if the background metric is non-Kähler.…”
We introduce a new geometric flow of Hermitian metrics which evolves an initial metric along the second derivative of the Chern scalar curvature. The flow depends on the choice of a background metric, it always reduces to a scalar equation and preserves some special classes of Hermitian structures, such as balanced and Gauduchon metrics. We show that the flow has always a unique short-time solution and we provide a stability result when the background metric is Kähler with constant scalar curvature (cscK). The main theorem is obtained by proving a general result about stability of parabolic flows on Riemannian manifolds which is interesting in its own right and in particular implies the stability of the classical Calabi flow near cscK metrics.
“…The (n − 1)-plurisubharmonic flow is in some aspects similar to the flow considered in this paper, since its definition depends on the choice of a background metric. But in contrast to (1), (17) does not necessarily preserve the balanced condition if the background metric is non-Kähler.…”
We introduce a new geometric flow of Hermitian metrics which evolves an initial metric along the second derivative of the Chern scalar curvature. The flow depends on the choice of a background metric, it always reduces to a scalar equation and preserves some special classes of Hermitian structures, such as balanced and Gauduchon metrics. We show that the flow has always a unique short-time solution and we provide a stability result when the background metric is Kähler with constant scalar curvature (cscK). The main theorem is obtained by proving a general result about stability of parabolic flows on Riemannian manifolds which is interesting in its own right and in particular implies the stability of the classical Calabi flow near cscK metrics.
“…Ever since then, it is now a well-established practice to design parabolic geometric flows as an alternative way to solve fully non-linear elliptic equations (see e.g. [10,19,23,24,34,35,48,49,55,56,57,72,73]).…”
Our recent work about fully non-linear elliptic equations on compact manifolds with a flat hyperkähler metric is hereby extended to the parabolic setting. This approach will help us to study some problems arising from hyperhermitian geometry.
“…The proof in [27] makes careful use of the specific form of this first order term term L(x, ∇u). See also [17,10,26,38] for related follow-up work.…”
We consider the complex Monge-Ampère equation with an additional linear gradient term inside the determinant. We prove existence and uniqueness of solutions to this equation on compact Hermitian manifolds.
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