Results 31 to 40 of about 1,618 (72)

Exact Sequences of Semimodules over Semirings [PDF]

, 2012
In this paper, we introduce and investigate a new notion of exact sequences of semimodules over semirings relative to the canonical image factorization.
Abuhlail, Jawad
core  

Processing Succinct Matrices and Vectors

, 2014
We study the complexity of algorithmic problems for matrices that are represented by multi-terminal decision diagrams (MTDD). These are a variant of ordered decision diagrams, where the terminal nodes are labeled with arbitrary elements of a semiring ...
A. Bertoni, A. Storjohann, B. Grenet, C. Damm, C. Mereghetti, C. Àlvarez, D. Eppstein, G. Malod, H. Caussinus, H. Galperin, H. Lenstra, I. Wegener, M. Beaudry, M. Fujita, M. Galota, M. Lohrey, M. Lohrey, P. Berman, R.E. Bryant, R.E. Ladner, S. Toda, W. Plandowski   +21 more
core   +1 more source

Universal quadratic forms and Northcott property of infinite number fields

Journal of the London Mathematical Society, Volume 110, Issue 5, November 2024.
Abstract We show that if a universal quadratic form exists over an infinite degree, totally real extension of the field of rationals Q$\mathbb {Q}$, then the set of totally positive integers in the extension does not have the Northcott property. In particular, this implies that no universal form exists over the compositum of all totally real Galois ...
Nicolas Daans, Vítězslav Kala, Siu Hang Man   +2 more
wiley   +1 more source

Ordered Quasi(BI)‐Γ‐Ideals in Ordered Γ‐Semirings

Journal of Mathematics, Volume 2019, Issue 1, 2019., 2019
In this paper, we have defined ordered quasi‐Γ‐ideals and ordered bi‐Γ‐ideals in ordered Γ‐semirings by defining the relation “≤” in ordered Γ semiring S as a ≤ b if a + x = b for any a, b, x ∈ S. By using this relation we have shown that ordered quasi‐Γ‐ideals and ordered bi‐Γ‐ideals in ordered Γ‐semirings are generalization of quasi‐ideals and bi ...
Ali N. A. Koam, Azeem Haider, Moin A. Ansari, Andrei V. Kelarev   +3 more
wiley   +1 more source

The universal tropicalization and the Berkovich analytification [PDF]

, 2016
Given an integral scheme X over a non-archimedean valued field k, we construct a universal closed embedding of X into a k-scheme equipped with a model over the field with one element (a generalization of a toric variety).
Giansiracusa, Jeffrey, Giansiracusa, Noah   +1 more
core  

Ordered Left Almost ⋇‐Semihypergroups Based on Fuzzy Sets

Journal of Mathematics, Volume 2024, Issue 1, 2024.
The concept of an involution or anti‐involution is a self‐inverse linear mapping that plays a prominent role in the theory of algebraic structures, particularly rings, hyperrings, ordered semigroups, and ordered semihypergroups. Nowadays, the study of involutions in ordered hyperstructures is a particular area of research in the field of hyperstructure
Nabilah Abughazalah, Naveed Yaqoob, Tareq Al-shami   +2 more
wiley   +1 more source

Simple Polynomial Reissner–Mindlin Shell Model and Its Application in Efficient Analysis of Complex Underground Structures

Advances in Civil Engineering, Volume 2024, Issue 1, 2024.
The isogeometric (IG) Reissner–Mindlin (R–M) shell model solves the problem of shear and membrane locking that besets the finite element (FE) R–M shell model of nonthick underground structures, but still faces complicated modeling and computation, especially for the multijoint structures.
Jingxu Chen, Jihui Huang, Yifeng Peng, Nicola Buratti   +3 more
wiley   +1 more source

The limit distribution of the maximum increment of a random walk with regularly varying jump size distribution

, 2009
In this paper, we deal with the asymptotic distribution of the maximum increment of a random walk with a regularly varying jump size distribution. This problem is motivated by a long-standing problem on change point detection for epidemic alternatives ...
Mikosch, Thomas, Račkauskas, Alfredas
core   +3 more sources

Gyroscopic Torques Generated by a Spinning Ring Torus

Advances in Mathematical Physics, Volume 2024, Issue 1, 2024.
The known publications related to the gyroscope theory consider only several geometries of the spinning rotors, like the disc, bars, rings, spheres, and others. The geometries of the spinning objects in engineering can have many designs that generate different values of inertial torques. A computing of inertial torques produced by the object’s rotating
Ryspek Usubamatov, John Clayton
wiley   +1 more source

The Tannakian Formalism and the Langlands Conjectures

, 2010
Let H be a connected reductive group over an algebraically closed field of characteristic zero, and let G be an abstract group. In this note we show that every homomorphism from the Grothendieck semiring of H to that of G which maps irreducible ...
Chevalley, David Kazhdan, Deligne, Michael Larsen, Steinberg, Yakov Varshavsky   +5 more
core   +1 more source