Recommended by Lech G ´ orniewicz We prove a result on points of coincidence and common fixed points for three self-mappings satisfying generalized contractive type conditions in cone metric spaces. We deduce some results on common fixed points for two self-mappings satisfying contractive type conditions in cone metric spaces. These results generalize some well-known recent results.

The paper studies coincidence points of parameterized set-valued mappings (multifunctions), which provide an extended framework to cover several important topics in variational analysis and optimization that include the existence solutions generalized equations, implicit function fixed-point theorems, optimal value functions parametric optimization, etc. Using advanced machinery differentiation...

In this paper we address a special case of "sloppy" quantum estimation procedures which happens in the presence intertwined parameters. A collection parameters are said to be when their imprinting on probe that mediates procedure, is performed by set linearly dependent generators. Under circumstance individual values can not recovered unless one tampers with encoding process itself. An example ...