Let C be a nonempty closed convex subset of a uniformly convex and 2-uniformly smooth Banach space E and let Π<Subscript> C </Subscript> be a sunny nonexpansive retraction from E onto C. Let the mappings <InlineEquation ID="IEq4"> <EquationSource Format="TEX">$${T, S: C \to E}$$</EquationSource> </InlineEquation> be γ <Subscript>1</Subscript>-strongly accretive, μ <Subscript>1</Subscript>-Lipschitz continuous and γ <Subscript>2</Subscript>-strongly accretive, μ...</subscript></subscript></subscript></subscript></equationsource></inlineequation></subscript>

We study the behavior of the critical price of an American put option near maturity in an exponential Lévy model. In particular, we prove that in situations where the limit of the critical price is equal to the strike price, the rate of convergence to the limit is linear if and only if the...

Nemirovski’s analysis (SIAM J. Optim. 15:229–251, <CitationRef CitationID="CR15">2005</CitationRef>) indicates that the extragradient method has the O(1/t) convergence rate for variational inequalities with Lipschitz continuous monotone operators. For the same problems, in the last decades, a class of Fejér monotone projection and...</citationref>