In an article recently published in Thermochimica Acta, Ray Rogers claims that certain results and observations from procedures that he performed on Shroud samples “prove that the radiocarbon sample was not part of the original cloth of the Shroud of Turin.” While I welcome the relative increase in publicity regarding the authenticity and study of the Shroud of Turin which his article generated...

in this paper, we establish and prove the existence of best proximity points for multivalued cyclic $f$- contraction mappings in complete metric spaces. our results improve and extend various results in literature.

recently, choudhury and metiya [fixed points of weak contractions in cone metric spaces, nonlinear analysis 72 (2010) 1589-1593] proved some fixed point theorems for weak contractions in cone metric spaces. weak contractions are generalizations of the banach's contraction mapping, which have been studied by several authors. in this paper, we introduce the notion of $f$-weak contractions and als...