In a previous paper [4], we adapted Nitsche’s method for the approximation of the linear elastodynamic unilateral contact problem. The space semi-discrete problem was analyzed and some schemes (θ-scheme, Newmark and a new hybrid scheme) were proposed and proved to be well-posed under appropriate CFL conditons. In the present paper we look at the stability properties of the above-mentioned schem...

In general when considering cache coherence, write back schemes are the default. These schemes invalidate all other copies of a data block during a write. In this paper we propose several hybrid schemes that will switch between updating and invalidating on processor writes at runtime, depending on program conditions. We created our own cache simulator on which we could implement our schemes, an...

A new class of hybrid schemes and composite inner-outer iterative schemes in conjunction with Picard and Newton methods based on explicit approximate inverse arrowtype matrix techniques is introduced. Isomorphic methods in conjunction with explicit preconditioned schemes based on approximate inverse matrix techniques are presented for the efficient solution of arrow-type linear systems. Applica...

We propose new instantiations of chosen-ciphertext secure identitybased encryption schemes with wildcards (WIBE). Our schemes outperform all existing alternatives in terms of efficiency as well as security. We achieve these results by extending the hybrid encryption (KEM–DEM) framework to the case of WIBE schemes. We propose and prove secure one generic construction in the random oracle model, ...

The wavelet transform has proved its eeciency in removing spatial redundancy. In the framework of hybrid coding schemes, this paper studies the way to combine the wavelet transform and a block matching motion estimation technique. Diierent coding schemes are presented which diier through the data on which the motion estimation and motion compensation are respectively applied. Simulations result...

Flash memory devices commonly rely upon traditional address mapping schemes such as page mapping, block mapping or a hybrid of the two. Page mapping is more flexible than block or hybrid mapping without being restricted by block boundaries. However, its mapping table tends to grow large quickly as the capacity of flash memory devices does. To overcome this limitation, we propose novel mapping s...

| This paper presents hybrid control schemes which are used for practical stabilization of a diierentially driven mobile robot. The control schemes are shown to have desirable characteristics for a regulation scheme, i.e., have gains which are easy to tune, correspond to the physical geometry, and address the eeects of sensor noise. By taking into account the geometry and dynamics of the proble...

We provide several schemes to construct the continuous-variable SWAP gate and present a Hermitian generalized many-body continuous controlled-NOT gate. We introduce and study the hybrid controlled-NOT gate and controlledSWAP gate, and their physical realizations are discussed in trapped-ion systems. These continuous-variable and hybrid quantum gates may be used in the corresponding continuous-v...

Elliptic Curve Cryptography (ECC) can be used as a tool for encrypting data, creating digital signatures, and performing key exchanges. Regarding the encryption capability, the first schemes that appeared were either versions of already existing public-key algorithms (Massey-Omura and ElGamal) or new schemes specified ad hoc (MenezesVanstone). However, all the initial elliptic curve encryption ...

Recently, an increasing amount of papers proposing postquantum schemes also provide concrete parameter sets aiming for concrete post-quantum security levels. Security evaluations of such schemes need to include all possible attacks, in particular those by quantum adversaries. In the case of lattice-based cryptography, currently existing quantum attacks are mainly classical attacks, carried out ...