8 citations · 9 across the 3 of their papers we have counts for
3 papers
math.FA2008★ 8 cited
On extensions of d.c. functions and convex functions
Libor Vesely, Ludek Zajicek
We show how our recent results on compositions of d.c. functions (and mappings) imply positive results on extensions of d.c. functions (and mappings). Examples answering two natura…
math.FA2007
Quotients of continuous convex functions on nonreflexive Banach spaces
P. Holicky, O. Kalenda, L. Vesely +1
On each nonreflexive Banach space X there exists a positive continuous convex function f such that 1/f is not a d.c. function (i.e., a difference of two continuous convex functions…
math.FA2006★ 1 cited
Delta-semidefinite and delta-convex quadratic forms in Banach spaces
N. Kalton, S. V. Konyagin, L. Vesely
A continuous quadratic form ("quadratic form", in short) on a Banach space is: (a) delta-semidefinite (i.e., representable as a difference of two nonnegative quadratic forms) i…