On necessary conditions for scalars

Some Results on Necessary Conditions for Tow Quasidifferentiable Optimization Problems

On Necessary Conditions for Nonlipschitz Optimization Problems

In this paper, we establish a nessary condition for nonlipschitz constrained optimization problems in terms of Fréchet subdifferentials and normal cones in Asplund spaces.

On necessary conditions for almost global stability

In this work we prove the necessity of the existence of a density function for a globally asymptotically stable dynamical system.

On Necessary Conditions for Secure Distributed Computation

What assumptions are required to achieve an unconditionally secure distributed circuit evaluation in a fully connected network? This question was addressed with respect to the allowed number of malicious players [BGW, CCD, RB], given that every channel is unconditionally secure. In this paper we investigate whether the security of all channels is also a necessary condition. [BGW, CCD] showed ho...

New Necessary Conditions for

In this paper, we obtain several nonexistence results for abelian Hadamard diier-ence sets. In particular, we prove that there are no Hadamard diierence sets in abelian groups G = Z 2 Z 2 P , where jPj = p 2 , is odd and p is a prime congruent to 1(mod 4). Also we give a detailed proof for a connection between certain reversible Hadamard diierence sets and projective three-weight codes which wa...