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Lesh, Richard; Bas, Sinem; Ader, Engin; ÖZEL, SERKAN; Sriraman, Bharath; Aygun, Berna; Turker, Belma (2011-07-15)
Towards Usable Solutions to Graphical Password Hotspot Problem
BIÇAKCI, KEMAL; ATALAY, NART BEDİN; Yuceel, Mustafa; Gurbaslar, Hakan; Erdeniz, Burak (2009-07-24)
Click based graphical passwords that use background images suffer from hot-spot problem. Previous graphical password schemes based on recognition of images do not have a sufficiently large password space suited for most In...
A generic identification theorem for L*-groups of finite Morley rank
Berkman, Ayse; Borovik, Alexandre V.; Burdges, Jeffrey; Cherfin, Gregory (Elsevier BV, 2008-01-01)
This paper provides a method for identifying "sufficiently rich" simple groups of finite Morley rank with simple algebraic groups over algebraically closed fields. Special attention is given to the even type case, and the ...
Nonlinear congruential pseudorandom number generators based on inversions have been introduced and analysed recently. These generators do not show the simple lattice structure of the widely used linear congruential generat...
Higher-Order Numerical Scheme for the Fractional Heat Equation with Dirichlet and Neumann Boundary Conditions
Priya, G. Sudha; Prakash, P.; Nieto, J. J.; Kayar, Z. (Informa UK Limited, 2013-06-01)
In this article, we consider a higher-order numerical scheme for the fractional heat equation with Dirichlet and Neumann boundary conditions. By using a fourth-order compact finite-difference scheme for the spatial variabl...
Nonlocal operators with local boundary conditions in higher dimensions
Aksoylu, Burak; Celiker, Fatih; Kilicer, Orsan (Springer Science and Business Media LLC, 2019-02-01)
We present novel nonlocal governing operators in 2D/3D for wave propagation and diffusion. The operators are inspired by peridynamics. They agree with the original peridynamics operator in the bulk of the domain and simult...
Monomial curve families supporting Rossi's conjecture
Arslan, Feza; Sipahi, Neslihan; Sahin, Nil (Elsevier BV, 2013-08-01)
In this article, we give a constructive method to form infinitely many families of monomial curves in affine 4-space with corresponding Gorenstein local rings in embedding dimension 4 supporting Rossi's conjecture. Startin...
On Lyapunov inequality in stability theory for Hill's equation on time scales
Atici, FM; Guseinov, GS; Kaymakcalan, B (Springer Science and Business Media LLC, 2000-01-01)
In this paper we obtain sufficient conditions for instability and stability to hold for second order linear Delta -differential equations on time scales with periodic coefficients.
A note on the importance of mass conservation in long-time stability of Navier-Stokes simulations using finite elements
Belenli, Mine Akbas; Rebholz, Leo G.; Tone, Florentina (2015-07-01)
We prove a long-time stability result for the finite element in space, linear extrapolated Crank-Nicolson in time discretization of the Navier-Stokes equations (NSE). From this result and a numerical experiment, we show th...
Conservation of an ecosystem through optimal taxation
Krishna, SV; Srinivasu, PDN; Kaymakcalan, B (Springer Science and Business Media LLC, 1998-05-01)
In this paper we study a harvesting problem in the presence of a predator and a tax. The objective is to maximize the monetary social benefit as well as prevent the predator from extinction, keeping the ecological balance....