凉山彝族自治州位于四川西南川滇交界处,地处青藏高原东南部边缘和云贵高原与四川盆地的过渡地带.地貌复杂多样,海拔最高接近6000米,最低不到500米,因此气候差异特别明显.特殊的地理位置和独特的自然条件孕育了繁多的杜鹃花种,是野生杜鹃花属植物开发利用的资源宝库.
This paper concerns about the regularity conditions of weak solutions to the magnetic Bénard fluid system in R3.We show that a weak solution(u,b,θ)(·,t)of the 3D magnetic Bénard fluid system defined in[0,T),which satisfies some regularity requirement as(u
In this paper,a class of nonhomogeneous Schr?dinger-Poisson systems with strong singularity are considered.Combining with the variational method and Nehari method,we obtain a positive solution for this system which improves the recent results in the liter
A graph Γ is said to be symmetric if its automorphism group Aut(Γ)acts transitively on the arc set of Γ.We show that if Γ is a finite connected heptavalent symmetric graph with solvable stabilizer admitting a vertex-transitive non-abelian simple group G o
We provide some exact formulas for the projective dimension and regularity of edge ideals associated to some vertex-weighted oriented cyclic graphs with a common vertex or edge.These formulas are functions in the weight of the vertices,and the numbers of
We study the quadratic quotients of the incidence category of the Young lattice defined by the zero relations corresponding to adding two boxes to the same row,or to the same column,or both.We show that the last quotient corresponds to the Koszul dual of
We describe all degenerations of the variety(3)ot?3 of Jordan algebras of di-mension three over C.In particular,we describe all irreducible components in(3)ot?3.For every n we define an n-dimensional rigid“marginal”Jordan algebra of level one.Moreover,we
We introduce the notions of a four-angle Hopf quasimodule and an adjoint quasiaction over a Hopf quasigroup H in a symmetric monoidal category C.If H possesses an adjoint quasiaction,we show that symmetric Yetter-Drinfeld categories are trivial,and hence