Callling All Rockhonds and Pebble Pups

Pebble Games and Complexity

Pebble Games and Complexity

Study on Pebble-Fluid Interaction Effect in Pebble Bed Reactors

INTRODUCTION In pebble bed reactors (PBRs), fuel pebbles containing TRISO particles continuously circulate within the core during operation, while the coolant fluid, either helium gas (in Pebble Bed Gas-cooled Reactors) or molten flibe salt (in Pebble Bed-Advanced High Temperature Reactors), continuously passes through the pebbles to transfer the heat generated by fission reactions out of the c...

Pebble Macro Tree Transducers with Strong Pebble Handling

Pebble Games and Linear Equations

We give a new, simplified and detailed account of the correspondence between levels of the Sherali–Adams relaxation of graph isomorphism and levels of pebble-game equivalence with counting (higher-dimensional Weisfeiler–Lehman colour refinement). The correspondence between basic colour refinement and fractional isomorphism, due to Tinhofer [22, 23] and Ramana, Scheinerman and Ullman [17], is re...

Interpolation, Preservation, and Pebble Games

Preservation and interpolation results are obtained for L1! and sublog-ics L L1! such that equivalence in L can be characterized by suitable back-and-forth conditions on sets of partial isomorphisms.