E-LIB Suche - Ergebnisse für: Sun, Longfa

1

On a universal inequality for approximate phase isometries:

Dai, Duanxu ; Que, Haixin ; Sun, Longfa.
Acta Mathematica Scientia. 44 (2024) 3 - p. 823-838 , 2024

Link: https://doi.org/10.1007/..

2

On extension of isometries between the positive unit sphere..:

Sun, Longfa ; Zhang, Yipeng ; Sun, Yinghua.
Indian Journal of Pure and Applied Mathematics. , 2024

Link: https://doi.org/10.1007/..

3

On Extension of Norm-Additive Maps Between the Positive Uni..:

Sun, Longfa ; Sun, Yinghua
Results in Mathematics. 79 (2024) 3 - p. , 2024

Link: https://doi.org/10.1007/..

4

More on stability of two functional equations:

Sun, Longfa ; Dong, Yunbai
Ukrains'kyi Matematychnyi Zhurnal. 75 (2023) 6 - p. 859-868 , 2023

Link: https://doi.org/10.37863..

5

A note on the Turn$${\check{s}}$$ek theorem:

Sun, Longfa ; Sun, Yinghua ; Guo, Yan.
Indian Journal of Pure and Applied Mathematics. , 2023

Link: https://doi.org/10.1007/..

6

More on Stability of Two Functional Equations:

Sun, Longfa ; Dong, Yunbai
Ukrainian Mathematical Journal. , 2023

Link: https://doi.org/10.1007/..

7

On Perturbed Isometries Between the Positive Cones of Certa..:

Sun, Longfa ; Sun, Yinghua ; Wang, Shenghua
Results in Mathematics. 78 (2023) 2 - p. , 2023

Link: https://doi.org/10.1007/..

8

Stability of $$\varepsilon $$-isometries and their symmetri..:

Sun, Longfa
Aequationes mathematicae. 97 (2022) 2 - p. 355-375 , 2022

Link: https://doi.org/10.1007/..

9

On phase-isometries between the positive cones of continuou..:

Sun, Longfa ; Sun, Yinghua ; Dai, Duanxu
Annals of Functional Analysis. 14 (2022) 1 - p. , 2022

Link: https://doi.org/10.1007/..

10

Hyers–Ulam stability of $$\varepsilon $$-isometries between..:

Sun, Longfa
Results in Mathematics. 77 (2021) 1 - p. , 2021

Link: https://doi.org/10.1007/..

11

A note on the stability of isometries on the positive cones..:

Sun, Longfa
Indian Journal of Pure and Applied Mathematics. 52 (2021) 1 - p. 265-273 , 2021

Link: https://doi.org/10.1007/..

12

On non-linear $$\varepsilon$$-isometries between the positi..:

Sun, Longfa
Annals of Functional Analysis. 12 (2021) 4 - p. , 2021

Link: https://doi.org/10.1007/..

13

Stability of symmetric $$\varepsilon $$-isometries on wedge:

Sun, Longfa
Indian Journal of Pure and Applied Mathematics. 52 (2021) 1 - p. 11-21 , 2021

Link: https://doi.org/10.1007/..

14

On the Symmetrizations of $$\varepsilon$$-Isometries on Pos..:

Sun, Longfa
Functional Analysis and Its Applications. 55 (2021) 1 - p. 75-79 , 2021

Link: https://doi.org/10.1134/..

15

A note on stability of non-surjective $$\varepsilon$$-isome..:

Sun, Longfa
Indian Journal of Pure and Applied Mathematics. 52 (2021) 4 - p. 1085-1092 , 2021

Link: https://doi.org/10.1007/..