Slow shocks are introduced to be the main dissipation sites in Petschek reconnection model, but they seldom observed interplanetary space. We report a slow shock pair bounding plasmoid/macro magnetic hole by Parker Solar Probe. The jump conditions across examined and confirmed satisfy Rankine-Hugoniot relations. flow speed preshock postshock regions of both match up with characteristics shocks....

Abstract We consider the interplay between persistent motion, which is a generic property of active particles, and recoil interaction causes particles to jump apart on contact. The exemplifies an contact inelastic generated by nature constituents. It inspired “shock” dynamics certain microorganisms, such as Pyramimonas octopus , always generates effective repulsion pair passive particles. Highl...

In this paper, we use the Riemann–Hilbert (RH) approach to examine integrable three-coupled Lakshmanan–Porsezian–Daniel (LPD) model, which describes dynamics of alpha helical protein with interspine coupling at fourth-order dispersion term. Through spectral analysis Lax pair, construct higher-order matrix RH problem for LPD when jump particular is a $$4\times 4$$ unit matrix, exact N-soliton so...

Let M be a manifold equipped (locally) with a pair of complementary foliations. In Catuogno, da Silva and Ruffino [4], it is shown that, up to a stopping time τ , a stochastic flow of local diffeomorphisms φt in M can be decomposed in diffeomorphisms that preserves this foliations. In this article we present techniques which allow us to extend the time of this decomposition. For this extension,...

The infinite Ramsey theorem is known to be equivalent to the statement ‘for every set X and natural number n, the n-th Turing jump of X exists’, over RCA0 due to results of Jockusch [5]. By subjecting the theory RCA0 augmented by the latter statement to an ordinal analysis, we give a direct proof of the fact that the infinite Ramsey theorem has proof-theoretic strength εω. The upper bound is ob...

Spatially homogeneous random walks in (Z+) 2 with non-zero jump probabilities at distance at most 1, with non-zero drift in the interior of the quadrant and absorbed when reaching the axes are studied. Absorption probabilities generating functions are obtained and the asymptotic of absorption probabilities along the axes is made explicit. The asymptotic of the Green functions is computed along ...

We show the existence of a subalgebra A ⊆ P(ω) that satisfies the following three conditions: • A is Borel (when P(ω) is identified with 2). • A is arithmetically closed (i.e., A is closed under the Turing jump, and Turing reducibility). • The forcing notion (A,⊆) modulo the ideal FIN of finite sets collapses the continuum to א0.

We present the results of novel, time-resolved, in situ HRTEM observations, molecular dynamics (MD) simulations, and disconnection theory that elucidate mechanism by which motion grain boundaries (GBs) polycrystalline materials are coupled through motion/reactions at/adjacent to GB triple junctions (TJs). focus on TJs composed a pair coherent twin (CTBs) Σ9 copper. As for all GBs, implies multi...