نتایج جستجو برای: r3
تعداد نتایج: 3639 فیلتر نتایج به سال:
Let F3(n;m) be a random 3-SAT formula formed by selecting uniformly, independently, and with replacement, m clauses among all 8 n3 possible 3-clauses over n variables. It has been conjectured that there exists a constant r3 such that for any > 0, F3(n; (r3 )n) is almost surely satisfiable, but F3(n; (r3 + )n) is almost surely unsatisfiable. The best lower bounds for the potential value of r3 ha...
We introduce snowballs, which are compact sets in R3 homeomorphic to the unit ball. They are 3-dimensional analogs of domains in the plane bounded by snowflake curves. For each snowball B a quasiconformal map f : R3 → R3 is constructed that maps B to the unit ball.
The light-driven inward chloride ion-pumping rhodopsin Nonlabens marinus rhodopsin-3 (NM-R3), from a marine flavobacterium, belongs to a phylogenetic lineage distinct from the halorhodopsins known as archaeal inward chloride ion-pumping rhodopsins. NM-R3 and halorhodopsin have distinct motif sequences that are important for chloride ion binding and transport. In this study, we present the cryst...
In this paper, we are concerned with the following fractional Schrödinger-Poisson system: (−∆s)u + u + λφu = µf(u) +|u|p−2|u|, x ∈R3 (−∆t)φ = u2, x ∈R3 where λ,µ are two parameters, s,t ∈ (0,1] ,2t + 4s > 3 ,1 < p ≤ 2∗ s and f : R → R is continuous function. Using some critical point theorems and truncation technique, we obtain the existence and multiplicity of non-trivial solutions with ...
We prove that k-trace operators of SO(6)R irreps with Young tableau partitions {r1, r2, r3}, constructed out of k chiral primaries in the twenty dimensional SO(6)R irrep, lead to quasi primary fields with protected conformal dimensions under certain conditions. If r1, r2, r3 are all even, r1 + r2 + r3 = 2k and the field is a spacetime scalar, then the conformal dimension 2k is unrenormalized. I...
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