English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In what follows, the symbol X stands for a real Banach space with norm ‖ · ‖ and (normalized) duality mapping J. Moreover, “continuous” means “strongly continuous” and the symbol “→” (“⇀”) means strong (weak) convergence. The symbol R (R+) stands for the set (−∞,∞) ([0,∞)) and the symbols ∂D, int D, D denote the strong boundary, interior and closure of the set D, respectively. An operator T : X ⊃ D(T ) → Y, with Y another real Banach space, is bounded if it maps bounded subsets of D(T ) onto bounded sets of Y. It is compact if it is continuous and maps bounded subsets of D(T ) onto relatively compact sets of Y. It is called demicontinuous (completely continuous) if it is strong-weak (weakstrong) continuous on D(T ). For a multi-valued operator T : X → 2 and any set A ⊂ X, we set D(T ) = {x ∈ X : Tx 6= ∅} and TA = ⋃ {Tx : x ∈ A} and we always assume that D(T ) 6= ∅. An operator T : X ⊃ D(T ) → 2 is accretive if for every x, y ∈ D(T ) there exists j ∈ J(x− y) such that

$p$-regular mappings and alternative results for perturbations of $m$-accretive operators in Banach spaces