IC/96/47 United Nations Educational Scientific and Cultural Organization and International Atomic Energy Agency INTERNATIONAL CENTRE FOR THEORETICAL PHYSICS ON CURVES OVER FINITE FIELDS WITH MANY RATIONAL POINTS

IC/96/6 United Nations Educational Scientific and Cultural Organization and International Atomic Energy Agency INTERNATIONAL CENTRE FOR THEORETICAL PHYSICS ON APPROXIMATE DIFFERENTIABILITY OF FUNCTIONS WITH BOUNDED DEFORMATION

IC/96/132 United Nations Educational Scientific and Cultural Organization and International Atomic Energy Agency INTERNATIONAL CENTRE FOR THEORETICAL PHYSICS DERIVATION OF DICHROMATED GELATIN HOLOGRAMS FROM AGFA 8E75HD PLATES AND FABRICATION OF HOLOGRAPHIC FABRY-PEROT ETALON

The characteristics of diffraction efficiency and resolution of dichromated gelatin films derived from Agfa 8E75 HD plates by modified preparing and processing methods are presented. Using these films, fabricating of holographic Fabry-Perot etalon has been demonstrated and characteristic fringes of the Fabry-Perot effect have been observed.

International Centre for Theoretical Physics General Exact Solutions of Einstein Equations for Static Perfect Fluids with Spherical Symmetry International Atomic Energy Agency United Nations Educational, Scientific and Cultural Organization

IC/98/108 United Nations Educational Scientific and Cultural Organization and International Atomic Energy Agency THE ABDUS SALAM INTERNATIONAL CENTRE FOR THEORETICAL PHYSICS RANDOM FIXED POINTS OF SET-VALUED MAPS

Some random fixed point theorems for set-valued random operators under very mild conditions are established. Some recent results of O'Regan ([Proc. Amer. Math. Soc. 126 (1998), 3045-3053] and [Computers Math. Applic. 35 (1998), 27-34]) are improved significantly. The discussion in this paper underlines, in addition to generality, the unifying aspects of our result.

IC/96/44 United Nations Educational Scientific and Cultural Organization and International Atomic Energy Agency INTERNATIONAL CENTRE FOR THEORETICAL PHYSICS A NOTE ON THE EXISTENCE OF INFINITELY MANY RADIALLY SYMMETRIC SOLUTIONS OF A QUASILINEAR ELLIPTIC PROBLEM

The existence of infinitely many classical radially symmetric solutions of the quasilinear elliptic problem f{u) + h(\x\) in BR, u = 0 on dBR) F(s) f is established assuming that the quotient (where F(s) = / f(£)d£ and A(s) = A(s) Jo rs 2 / £a(£)<^) exhibits an oscillatory behaviour at infinity, ./o MIRAMARE TRIESTE March 1996 1 Permanent Address: Department of Mathematics, University of Nigeri...