QUAESTIONES MATHEMATICAE
Volume 28, number 1 March 2005
CONTENTS
Vertex coverings by coloured induced graphs - Frames and Umbrellas
W. Goddard and M.A. Henning 1 Stratified L-uniform convergence spaces
G. Jager and M.H. Burton 11 On the duality problem for weakly compact, strictly singular operators
M. Gonzalez 37 Stability of asymptotic properties of Hille-Yosida operators under perturba-
tions and retarded differential equations
L. Maniar 39 Bounded quotients of frames
T. Dube 55 On the way to Frolicher Lie groups
P.P. Ntumba and T.A. Batubenge 73 Julias Lemma and concave schlicht functions
K.-J. Wirths 95 Diophantine equations involving general Meixner and Krawtchouk polynomials
Th. Stoll and R.F. Tichy 105 A positive note on a counterexample by Arens
G. Buskes and R. Page 117 The m-convergence theory in fuzzy topological spaces
Qingguo Li 123