List of Articles Banach space Open Access Article Abstract Page Full-Text 1 - APPLICATION OF THE SINGULAR BOUNDARY VALUE PROBLEM FOR INVESTIGATION OF PISTON DYNAMICS UNDER POLYTROPIC EXPANSION PROCESS B. Mehri A. Zahedi Nejad Open Access Article Abstract Page Full-Text 2 - EXISTENCE OF FIXED POINTS OF CERTAIN CLASSES OF NONLINEAR MAPPINGS odwin Amechi Okeke Johnson O Olaleru