in this paper, we prove a common fixed point theorem for six mappings (two set valued and four single valued mappings) without assuming compatibility and continuity of any mapping on non complete metric spaces. to prove the theorem, we use a non compatible condition, that is, weak commutativity of type (kb). we show that completeness of the whole space is not necessary for the existence and uni...

Indiana exports reached $3.98 billion in the third quarter of 2000. That represents a 14.8% increase when compared to the third quarter of 1999. Over the first three quarters of 2000 Indiana exports totaled $12.3 billion, about $2 billion more than sales during the same period in 1999. If this pace continues in the final quarter, Indiana exports would exceed $16 billion for the year — the highe...

Option (NASDAQEUROPE: OPIN), the leading innovator in the wireless communications market, today announced its consolidated second quarter results for the three months ended June 30th, 2002. Our results are reported in EURO and are prepared in accordance with United States generally accepted accounting principles (US GAAP). Highlights for the second quarter of 2002: • Revenues for the second qua...

Phase retarders usually present a strong frequency dependence. We discuss the design and characterization of a terahertz achromatic quarter-wave plate. This wave plate is made from six birefringent quartz plates precisely designed and stacked together. Phase retardation has been measured over the whole terahertz range by terahertz polarimetry. This achromatic wave plate demonstrates a huge freq...