On Classical Solutions to the Mean Field Game System of Controls

In this paper, we consider a class of mean field games in which the optimal strategy of a representative agent depends on the statistical distribution of the states and controls. We prove some existence results for the forward-backward system of PDEs under rather natural assumptions. The main step of the proof consists of obtaining a priori estimates on the gradient of the cost function by Bernstein's method. Uniqueness is also proved under more restrictive assumptions. The last section contains some examples to which the previously mentioned existence (and possibly uniqueness) results apply

Impact of Governance, Legal System and Economic Freedom on Foreign Investment in the MENA Region

While there is substantial literature examining the flow of foreign investments into various regions of the world, there is still lack of research focus on foreign investment activities in the Middle East and North Africa (MENA). One objective of this paper is to remedy this neglect and extend previous empirical work by focusing on foreign investments in that region. The second objective is to focus on non-traditional determinants that have tended to be overlooked or underestimated in previous research. The paper will focus on factors such as governance, legal environment, and economic freedom and examine their impact on foreign investment activities in the MENA region

DuckyZip: Provably Honest Global Linking Service

DuckyZip is a provably honest global linking service which links short memorable identifiers to arbitrarily large payloads (URLs, text, documents, archives, etc.) without being able to undetectably provide different payloads for the same short identifier to different parties. DuckyZip uses a combination of Verifiable Random Function (VRF)-based zero knowledge proofs and a smart contract in order to provide strong security guarantees: despite the transparency of the smart contract log, observers cannot feasibly create a mapping of all short identifiers to payloads that is faster than $\mathcal{O}(n)$ classical enumeration

Eigenvalue-Based Spectrum SensingWith Two Receive Antennas

National audience"Le concept de la radio intelligente définit deux types d’utilisateurs: les utilisateurs primaires (UP) qui ont accès aux ressources spectrales d’une façon prioritaire et les utilisateurs secondaires (US) qui exploitent les opportunités de communication laissées vacantes parles UPs. Dans ce papier on s’int´eresse au probl`eme de d´etection des ressources spectrales libres en utilisant les distributions du nombre deconditionnement (NDC) de la matrice de covariance des signaux reus par l’US. Une nouvelle formule math´ematique est propos´ee pour ladistribution du NDC dans le cas d’absence des UPs permettant ainsi de d´evelopper un nouveau algorithme de d´etection. Les r´esultats dessimulations nous permettent de valider la formulation th´eorique et les hypoth`eses de bases.

An Analysis of the ProtonMail Cryptographic Architecture

ProtonMail is an online email service that claims to offer end-to-end encryption such that even [ProtonMail] cannot read and decrypt [user] emails. The service, based in Switzerland, offers email access via webmail and smartphone applications to over five million users as of November 2018. In this work, we provide the first independent analysis of ProtonMail\u27s cryptographic architecture. We find that for the majority of ProtonMail users, no end-to-end encryption guarantees have ever been provided by the ProtonMail service and that the Zero-Knowledge Password Proofs are negated by the service itself. We also find and document weaknesses in ProtonMail\u27s Encrypt-to-Outside feature. We justify our findings against well-defined security goals and conclude with recommendations

POTENTIALS OF CONTAINERS IN CREATING MODULAR ARCHITECTURAL SPACES

Containers are currently considered as one of the inventive trends of framing architectural objects. Container architecture is defined as the type of architecture that is characterised by the usage of steel containers as a structural elements and architectural envelope that can be presented as a part of architecture or a function that an activity can happen in it. Due to the specific dimensions that the container has, architects tend to use it to obtain modularity in their projects and the modular design strategies refer to using the containers as a standard unit to carry out the process, these containers are not only considered as a modular unit in design basis, but it is also used because of its structural strength, cheap cost, fast construction, its variety to change the function inside and its durability. Unfortunately, people are not aware of the importance of this type of material that can be used to obtain sustainability and reduce pollution and recycle the materials. Therefore, this paper aims to explore the container architecture by identifying different ways of creating architecture spaces that hosts different functions and activities not only in micro view but also in macro which means in large scale. In order to achieve the mentioned aim, the paper will start by presenting a literature review based on desk research, highlighting the previous reading about solving the problem. As a conclusion, it is important to have a clear detail about the potentials of containers and their different usage in life