Results 81 to 90 of about 225 (160)
On (3, 1)-absorbing primary ideals in commutative rings
Open MathematicsIn this paper, we introduce and study the class of (3, 1)-absorbing primary ideals in commutative rings. We establish several characterizations and examine their relationship with classical 1-absorbing primary ideals.
Abouhalaka Alaa, Kim Hwankoo
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The Number of Homomorphisms from a Finite Abelian Group to a Symmetric Group (II) [PDF]
application/pdfFor any finite abelian group A, we give the lower bound of ordp(|Hom(A, Sn)|), and determine the region of convergence of the p-adic power series 1 + Sigma(infinity)(n=1) vertical bar Hom(A, S-n)vertical bar X-n/ n!.2000 Mathematics ...
竹ケ原, 裕元 +2 more
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Zeros distribution and interlacing property for certain polynomial sequences
Open MathematicsIn this article, we first prove that the Hankel determinant of order three of the polynomial sequence {Pn(x)=∑k≥0P(n,k)xk}n≥0{\left\{{P}_{n}\left(x)={\sum }_{k\ge 0}P\left(n,k){x}^{k}\right\}}_{n\ge 0} is weakly (Hurwitz) stable, where P(n,k)P\left(n,k ...
Guo Wan-Ming
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Further results on enumeration of perfect matchings of Cartesian product graphs
Open MathematicsCounting perfect matchings is an interesting and challenging combinatorial task. It has important applications in statistical physics and chemistry. As the general problem is #P-complete, it is usually tackled by randomized heuristics and approximation ...
Wu Tingzeng, Zeng Xiaolin
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Permutation q-enumeration with the Schur row adder
, 2010 . We q-enumerate here, by the i-major index, the class of permutations of Sn with largest increasing subsequence of size n − k and increasing rst n − k entries. The result is obtained by a surprisingly straightforward use of the Schur row adder.
Adriano M. Garsia
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On two-parameter telephone polynomials and their structural properties
Nuclear Physics BIn this paper, we investigate the structural and analytic properties of the two-parameter telephone polynomials. Starting from the exponential generating function and the recurrence relation, we derive an explicit formula, an operational representation ...
Carlos M. da Fonseca +2 more
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Demonstratio MathematicaThis article investigates the stationary behavior of an incompressible non-Newtonian fluid flowing through a thin three-dimensional domain Qξ⊂R3 ${Q}^{\xi }\subset {\mathbb{R}}^{3}$ , where the viscosity follows a variable power-law model.
Amara Kaddouri +4 more
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Two-sided permutation statistics via symmetric functions
Forum of Mathematics, SigmaGiven a permutation statistic $\operatorname {\mathrm {st}}$ , define its inverse statistic $\operatorname {\mathrm {ist}}$ by . We give a general approach, based on the theory of symmetric functions, for finding the joint distribution of
Ira M. Gessel, Yan Zhuang
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On the critical exponents of generalized ballot sequences in three dimensions and large tandem walks. [PDF]
Aequ Math, 2022 Wallner M.
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