The Hidden Complexity of Distributed Systems

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Consider the wave equation with heterogeneous coefficients in the homogenization regime. At large times, the wave interacts in a nontrivial way with the heterogeneities, giving rise to effective dispersive effects. The main achievement of the present wor ...

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The design point that had been chosen for EU DEMO in 2016 is reviewed here and a modification is proposed with a lower aspect ratio. Previously the same aspect ratio, A, was chosen for EU DEMO as in major tokamak experiments including ITER (A = 3.1), and, ...

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Distributed systems designers typically strive to improve performance and preserve availability despite failures or attacks; but, when strong consistency is also needed, they encounter fundamental limitations. The bottleneck is in replica coordination, whi ...

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The Dolev-Reischuk bound says that any deterministic Byzantine consensus protocol has (at least) quadratic (in the number of processes) communication complexity in the worst case: given a system with n processes and at most f < n/3 failures, any solution t ...

Let k be a field, and let L be an etale k-algebra of finite rank. If a is an element of k(x), let X-a be the affine variety defined by N-L/k(x) = a. Assuming that L has at least one factor that is a cyclic field extension of k, we give a combinatorial desc ...

This paper presents a novel distributed approach for solving AC power flow (PF) problems. The optimization problem is reformulated into a distributed form using a communication structure corresponding to a hypergraph, by which complex relationships between ...

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The problem of Byzantine resilience in distributed machine learning, a.k.a., Byzantine machine learning, consists in designing distributed algorithms that can train an accurate model despite the presence of Byzantine nodes, i.e., nodes with corrupt data or ...

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The accurate investigation of many geophysical phenomena via direct numerical simulations is computationally not possible nowadays due to the huge range of spatial and temporal scales to be resolved. Therefore advances in this field rely on the development ...

The Hidden Complexity of Distributed Systems

Chattez avec Graph Search

A Spectral Ansatz for The Long-Time Homogenization of The Wave Equation

Planetary-Scale Byzantine Fault Tolerance

Re-design of EU DEMO with a low aspect ratio

Soft Robotics: A Route to Equality, Diversity, and Inclusivity in Robotics

Single-cell biology: what does the future hold?

Appropriations and Uses of Travel Time

Tri-axial H-Field Sensor with Frequency-shaped Response in the band 400 MHz - 6 GHz

Building Strongly-Consistent Systems Resilient to Failures, Partitions, and Slowdowns

Analytic Approximation of In-Body Path Loss for Implanted Antennas

Byzantine consensus is Θ(n^2): the Dolev-Reischuk bound is tight even in partial synchrony!

NORM TORI OF ETALE ALGEBRAS AND UNRAMIFIED BRAUER GROUPS

Hypergraph-Based Fast Distributed AC Power Flow Optimization

Functional data analysis with rough sample paths?

Confirming the high pressure phase diagram of the Shastry-Sutherland model

Byzantine Machine Learning: A Primer

Between digital and territorial turns: A forking path

Roadmap on Machine learning in electronic structure

Data-driven and Safe Networked Control with Applications to Microgrids

Toward Mobile Distributed Ledgers

Exploiting Marginal Stability in Slow-Fast Quasilinear Dynamical Systems