Direction of vorticity and a new regularity criterion for the NavierStokes equations
 
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309

The time fractional diffusion equation and the advectiondispersion equation
 
F. Huang and F. Liu

317

Stochastic stability of linear systems with semiMarkovian jump parameters
 
Zhenting Hou, Jiaowan Luo and Peng Shi

331

A convolution back projection algorithm for local tomography
 
Challa S. Sastry and P. C. Das

341

Queueing systems for multiple FBMbased traffic models
 
Mihaela T. Matache and Valentin Matache

361

Impulsive control of rumours with two broadcasts
 
Selma Belen, C. Yalcin Kaya and C. E. M. Pearce

379

Duality for linear multiplicative programs
 
Carlton H. Scott and Thomas R. Jefferson

393

Bifurcation phenomena for an oxidation reaction in a continuously stirred tank reactor. III The inhibiting effect of an inert species
 
M. I. Nelson

399

On Euler midpoint formulae
 
Lj. Dedic, M. Matic and J. Pecaric

417

Growth estimates for solutions of nonlinear secondorder difference equations
 
Stevo Stevic

439
