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Sparse grid
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<p>Sparse grids are numerical techniques to represent, integrate or interpolate high <a href="/facts/Dimension/0ktmUyac">dimensional</a> functions. They were originally developed by the <a href="/facts/Russia/jfkCwyxn">Russian</a> <a href="/facts/Mathematician/eaFSR8Fx">mathematician</a> Sergey A. Smolyak, a student of <a href="/facts/Lazar_Lyusternik/18VNmBIq">Lazar Lyusternik</a>, and are based on a sparse tensor product construction. Computer algorithms for efficient implementations of such grids were later developed by <a href="/facts/Michael_Griebel/3zLxXEFX">Michael Griebel</a>, <a href="/facts/Christoph_Zenger/IMqrMe60">Christoph Zenger</a>, and Dirk Pflüger. </p>