A TOPOLOGICAL PROPERTY OF THE SOLUTION SET OF AN INFINITE HORIZON, NONLINEAR INTEGRODIFFERENTIAL INCLUSION
THE SPECTRUM OF ANNIHILATION PLUS ORTHOGONAL CREATION
R-ENDOMORPHISMS FIXING ESSENTIAL IDEALS IN NEAR-RINGS
ON THE EXPONENTIAL SUM OVER r-FREE INTEGERS
THE CIRCLE SEMIGROUP OF A RING
ON β-CLASSES
FRACTALS AND NUMBER SYSTEMS IN REAL QUADRATIC NUMBER FIELDS