Results 51 to 60 of about 1,430 (227)

Amenability Constants for Unconditional Sums of Banach Algebras

open access: yesMathematische Nachrichten, EarlyView.
ABSTRACT We study Johnson amenability for unconditional direct sums of Banach algebras. Given a family (Ai)i∈I$(A_i)_{i\in I}$ of Banach algebras and a Banach sequence lattice E$E$ on I$I$, the E$E$‐sum ⨁i∈IAiE${\bigl (\bigoplus _{i\in I} A_i\bigr)}_{\!E}$ carries a natural Banach algebra structure via coordinatewise multiplication.
Tomasz Kania, Jerzy Ka̧kol
wiley   +1 more source

Direct summand dari Å-Suplemented Module [PDF]

open access: yes, 2008
Suatu submodul N dari modul M dikatakan suatu supplement submdule dari suatu submodul L dari M jika N + L = M dan N adalah minimal pada hasil tambah ( sum ) ini.
Budi, Danial Setia
core  

On the Existential Theory of the Completions of a Global Field

open access: yesMathematische Nachrichten, EarlyView.
ABSTRACT We discuss the common existential theory of all or almost all completions of a global function field.
Philip Dittmann, Arno Fehm
wiley   +1 more source

On ADS modules with the summand sum property [PDF]

open access: yes
A module Mis called ADS, if for any decomposition M = KeL of M and any complement N of K in M, M = KeN. A module is said to have the summand sum property if the sum of any two direct summands is a direct summand.
Tasdemira, Ozguer
core   +1 more source

Novel Bernstein‐Kantorovich Type Operators

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, we introduce a novel class of Bernstein‐Kantorovich operators, denoted as Kβn,θ$$ {K}_{\beta}^{n,\theta } $$, parameterized by 0<β<1$$ 0<\beta <1 $$ and θ>0$$ \theta >0 $$. We first derive a recurrence formula that facilitates the computation of moments and central moments and provide explicit expressions for Kβn,θ(tm;x)$$ {K}_{\
Pembe Sabancigil, Nazim I. Mahmudov
wiley   +1 more source

Approximate Reachability for Feedback Linearizable Systems

open access: yesOptimal Control Applications and Methods, EarlyView.
The backwards reachable set for a dynamical system is the set of states for which there exists a constraint admissible trajectory that reaches a given terminal set. Conventional grid‐based approaches for computing these sets are intractable for many applications.
Vincent Liu   +2 more
wiley   +1 more source

A uniform Chevalley theorem for direct summands of polynomial rings in mixed characteristic [PDF]

open access: yes, 2022
We prove an explicit uniform Chevalley theorem for direct summands of graded polynomial rings in mixed characteristic. Our strategy relies on the introduction of a new type of differential powers that does not require the existence of a p-derivation on ...
De Stefani A.   +5 more
core   +2 more sources

Projective representations of quivers

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We prove that P1 →f P2 is a projective representation of a quiver Q=•→• if and only if P1 and P2 are projective left R-modules, f is an injection, and f (P 1)⊂P 2 is a summand.
Sangwon Park
doaj   +1 more source

Structural changes in the interannual variability of extreme autumn precipitation in eastern Spain and the weakening of synoptic forcing

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Total autumn precipitation in eastern Spain remains stable between 1950 and 2024, masking a substantial internal redistribution between ordinary and extreme rainfall. While torrential precipitation (Rp95) increases and ordinary precipitation (Ro) decreases, the extreme contribution index (Cext) shows a significant positive trend and a structural shift ...
Eduardo A. Agosta   +3 more
wiley   +1 more source

Modules Whose Direct Summands Are Fi-Extending [PDF]

open access: yes, 2017
WOS: 000438053300008A module M is called FI-extending if every fully invariant submodule of M is essential in a direct summand of M. It is not known whether a direct summand of an FI-extending module is also FI-extending.
TaşdEmir, Oktay, Karabacak, F.
core   +2 more sources

Home - About - Disclaimer - Privacy