Results 91 to 100 of about 1,381 (158)

(m,n)-Semirings and a Generalized Fault-Tolerance Algebra of Systems

Journal of Applied Mathematics, 2013
We propose a new class of mathematical structures called (m,n)-semirings (which generalize the usual semirings) and describe their basic properties. We define partial ordering and generalize the concepts of congruence, homomorphism, and so forth, for (m ...
Syed Eqbal Alam, Shrisha Rao, Bijan Davvaz   +2 more
doaj   +1 more source

Toric ideals of matching polytopes and edge colorings

Mathematika, Volume 72, Issue 2, April 2026.
Abstract In this paper, we investigate the maximal degree of minimal generators of the toric ideal of the matching polytope of a graph. It is known that the toric ideal associated with a bipartite graph is generated by binomials of degree at most 3.
Kenta Mori, Ryo Motomura, Hidefumi Ohsugi, Akiyoshi Tsuchiya   +3 more
wiley   +1 more source

A note on power invariant rings

International Journal of Mathematics and Mathematical Sciences, 1981
Let R be a commutative ring with identity and R((n))=R[[X1,…,Xn]] the power series ring in n independent indeterminates X1,…,Xn over R. R is called power invariant if whenever S is a ring such that R[[X1]]≅S[[X1]], then R≅S. R is said to be forever-power-
Joong Ho Kim
doaj   +1 more source

The alternating central extension for the positive part of Uq(slˆ2)

Nuclear Physics B, 2019
This paper is about the positive part Uq+ of the quantum group Uq(slˆ2). The algebra Uq+ has a presentation with two generators A,B that satisfy the cubic q-Serre relations. Recently we introduced a type of element in Uq+, said to be alternating.
Paul Terwilliger
doaj   +1 more source

A 2-Categorical Analysis of the Tripos-to-Topos Construction

, 2011
We characterize the tripos-to-topos construction of Hyland, Johnstone and Pitts as a biadjunction in a bicategory enriched category of equipment-like structures.
Frey, Jonas
core  

Minuscule reverse plane partitions via quiver representations

, 2018
A nilpotent endomorphism of a quiver representation induces a linear transformation on the vector space at each vertex. Generically among all nilpotent endomorphisms, there is a well-defined Jordan form for these linear transformations, which is an ...
Garver, Alexander, Patrias, Rebecca, Thomas, Hugh   +2 more
core   +1 more source

On D(n; q) quotients of large girth and hidden homomorphism based cryptographic protocols [PDF]

Annals of computer science and information systems, 2022
Vasyl Ustimenko, Michał Klisowski
doaj   +1 more source

Periodic solutions for second-order even and noneven Hamiltonian systems

Boundary Value Problems
In this paper, we consider the second-order Hamiltonian system x ¨ + V ′ ( x ) = 0 , x ∈ R N . $$ \ddot{x}+V^{\prime}(x)=0,\quad x\in \mathbb{R}^{N}. $$ We use the monotonicity assumption introduced by Bartsch and Mederski (Arch. Ration. Mech. Anal.
Juan Xiao, Xueting Chen
doaj   +1 more source

Controlling LEF growth in some group extensions. [PDF]

J Algebr Comb (Dordr)
Bradford H.
europepmc   +1 more source

Adjoint <i>L</i>-functions, congruence ideals, and Selmer groups over GL n. [PDF]

Res Number Theory
Fong HL.
europepmc   +1 more source