Whereas the olefin metathesis is recognized as a powerful tool to produce alkene, use of fluoroalkenes in metathesis-catalyzed reactions still remains major current challenge. Herein, we presented main developments that field both ring-closing and cross-metathesis, highlighting improvements these past years.

It is not difficult to derive place assimilation within the framework of previous theories such as classical generative theory, feature geometry, or underspecification theory. This is also true in Optimality Theory (Prince and Smolensky 1993). For instance, if there is a markedness constraint of the type *HETERORGANICCLUSTER, and faithfulness constraints for place of articulation are ranked bel...

Semi-discrete in time approximations of the velocity tracking problem are studied based on a pseudo-compressibility approach. Two different methods are used for the analysis of the corresponding optimality system. The first one, the classical penalty formulation, leads to estimates of order k + ε, under suitable regularity assumptions. The estimate is based on previously derived results for the...

Spatiotemporal dynamics are introduced in a standard Ramsey model of optimal growth which capital moves towards locations where the marginal productivity capita is relatively higher. We extend Pontryagin's maximum principle to account for transition governed by nonlinear partial differential equation emerging spatial flows. The potential heterogeneity as seen from point view an optimizing socia...

A central claim of Optimality Theory is that grammars may differ only in how conflicts among universal well-formedness constraints are resolved: a grammar is precisely a means of resolving such conflicts via a strict priority ranking of constraints. It is shown here how this theory of Universal Grammar yields a highly general Constraint Demotion principle for grammar learning. The resulting lea...

In this article, the free vibration behavior of nanoscale FG rectangular plates is studied within the framework of the refined plate theory (RPT) and small-scale effects are taken into account. Using the nonlocal elasticity theory, the governing equations are derived for single-layered FG nanoplate. The Navier’s method is employed to obtain closed-form solutions for rectangular nanoplates assum...