We discuss recent results on constructing approximating schemes based on averaged values of the approximated function f over linear segments. In particular, we describe interpolation and integration formulae of high algebraic degree of precision that use weighted integrals of f over non-overlapping subintervals of the real line. The quadrature formula of this type of highest algebraic degree of precision is characterized.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-bc72-0-2, author = {Borislav Bojanov}, title = {Interpolation and integration based on averaged values}, journal = {Banach Center Publications}, volume = {72}, year = {2006}, pages = {25-47}, zbl = {1116.41003}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc72-0-2} }
Borislav Bojanov. Interpolation and integration based on averaged values. Banach Center Publications, Tome 72 (2006) pp. 25-47. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc72-0-2/