A parametrical study on secondary flow in sharp open-channel bends: experiments and theoretical modelling
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In this article, we study the problem (sometimes called the Berger-Nirenberg problem) of prescribing the curvature on a Riemann surface (that is on an oriented surface equipped with a conformal class of Riemannian metrics). ...
We study the problem of prescribing the curvature on Riemann surfaces. We extend some results that are classical in the compact case to the non compact case. ...
We study conditions under which a point of a Riemannian surface has a neighborhood that can be parametrized by polar coordinates. The point under investigation can be a regular point or a conical singularity. We also study the regularity of these polar coo ...
