Results 131 to 140 of about 523 (235)
Posets of h-vectors of standard determinantal schemes
Le Matematiche, 2015 We study the combinatorial structure of the poset H consisting of h-vectors of length s of codimension c standard determinantal schemes, defined by the maximal minors of a t × (t + c − 1) homogeneous, polynomial matrix.
Matey Mateev
doaj
On Some General Tornheim-Type Series
MathematicsIn this paper, we solve the open problem posed by Kuba by expressing ∑j,k≥1Hk(u)Hj(v)Hj+k(w)jrks(j+k)t as a linear combination of multiple zeta values. These sums include Tornheim’s double series as a special case.
Kwang-Wu Chen
doaj +1 more source
Convergence in $$s_{2}$$ s 2 -quasicontinuous posets [PDF]
, 2016 Xiaojun Ruan, Xiaoquan Xu
openalex +1 more source
Arrow Contraction and Expansion in Tropical Diagrams. [PDF]
Entropy (Basel), 2023 Matveev R, Portegies JW.
europepmc +1 more source
Bender–Knuth Billiards in Coxeter Groups
Forum of Mathematics, SigmaLet $(W,S)$ be a Coxeter system, and write $S=\{s_i:i\in I\}$ , where I is a finite index set. Fix a nonempty convex subset $\mathscr {L}$ of W. If W is of type A, then $\mathscr {L}$ is the set of linear extensions of a poset,
Grant Barkley +4 more
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Study on web pillar failure mechanism during auger mining and its associated risk assessment. [PDF]
Sci Rep, 2023 Jiang J +5 more
europepmc +1 more source
On General Alternating Tornheim-Type Double Series
MathematicsIn this paper, we express ∑n,m≥1ε1nε2mMn(u)Mm(v)nrms(n+m)t as a linear combination of alternating multiple zeta values, where εi∈{1,−1} and Mk(u)∈{Hk(u),H¯k(u)}, with Hk(u) and H¯k(u) being harmonic and alternating harmonic numbers, respectively.
Kwang-Wu Chen
doaj +1 more source
Hausdorff ’s theorem for posets that satisfy the finite antichain property [PDF]
, 1999 Uri Abraham, Robert Bonnet
openalex +1 more source
Forcing axioms and the complexity of non-stationary ideals. [PDF]
Mon Hefte Math, 2022 Cox S, Lücke P.
europepmc +1 more source