"Spoilt Baby into Angry Young Man". Her theme is that the way children are brought up today is so sloppy and spineless that the result is the Angry Young Man. To prove her thesis she has assembled a series of statements, carefully indexed, made by angry adults. This attitude towards the young is a stage we all go through as we get older; let us be thankful that like the young, we also grow out ...

Abstract Multi-authenticated encryption is an important message transmission technique, which can send message in a secure and authentic way, and allows a group of signers to cooperatively produce a valid authenticated ciphertext so that only the specific recipient can recover the message and verify the signature. In 2008, Wu et al. proposed a convertible multi-authenticated encryption scheme. ...

Forward secrecy is one of the important properties of remote user authentication schemes to limit the effects of eventual failure of the entire system when the long-term private keys of one or more parties are compromised. Recently, Tsai et al. showed that Wang et al.’s dynamic ID-based remote user authentication scheme fails to achieve user anonymity and is vulnerable to user impersonation att...

in this paper, exp-function and (g′/g)expansion methods are presented to derive traveling wave solutions for a class of nonlinear space-time fractional differential equations. as a results, some new exact traveling wave solutions are obtained.

In this paper we establish a new existence result for the quasilinear elliptic problem $$\begin{aligned} -\mathrm{div}(A(x,u)|\nabla u|^{p-2}\nabla u) +\frac{1}{p} A_t(x,u)|\nabla u|^p + V(x)|u|^{p-2} u = g(x,u)\quad \text{ in } {\mathbb {R}}^N, \end{aligned}$$ with $$N\ge 2$$ , $$p>1$$ and $$V:{\mathbb {R}}^N\rightarrow {R}}$$ suitable measurable positive function, which generalizes modified S...