Results 131 to 140 of about 278,852 (350)

FIXED-POINT THEOREMS FOR NONCOMPACT MAPPINGS IN HILBERT SPACE [PDF]

, 1965
Felix E. Browder
openalex   +1 more source

Unique fixed point theorems in partially ordered metric spaces. [PDF]

Heliyon, 2020
Seshagiri Rao N, Kalyani K.
europepmc   +1 more source

Artificial Room‐Temperature Ferromagnetism of Bulk van der Waals VSe2

Advanced Science, EarlyView.
Artificial room‐temperature vdW ferromagnetism of bulk VSe2 has been presented via nano‐crystallization. By constructing the MFM junction with nano‐crystallized VSe2, vdW ferromagnetism has been spatially resolved with a ferromagnetic hysteresis curve.
Jinhyoung Lee, Gunhyoung Kim, Hyunho Seok, Hyunbin Choi, Hyeonjeong Lee, Seokchan Lee, Geonwook Kim, Hyunho Kim, Seowoo Son, Sihoon Son, Dongho Lee, Hosin Hwang, Hyelim Shin, Sujeong Han, Geumji Back, Alexina Ollier, Yeon‐Ji Kim, Lei Fang, Gyuho Han, Goo‐Eun Jung, Youngi Lee, Hyeong‐U Kim, Kenji Watanabe, Takashi Taniguchi, Wonjun Shin, Suraj Cheema, Andreas Heinrich, Won‐Jun Jang, Taesung Kim   +28 more
wiley   +1 more source

An Extention of Angelov’s Fixed Point Theorem in Uniform Spaces [PDF]

Results in Nonlinear Analysis, 2018
In this paper we establish an existence result for fixed points of mapping in a uniform space, which extends some previous theorems of V. G. Angelov [1].
Ljubomir P. Georgiev
doaj  

A proof of the Abian-Brown fixed point theorem. [PDF]

, 1961
P. H. Doyle
openalex   +1 more source

Fixed point theorems for nonlinear contractive mappings in ordered b-metric space with auxiliary function. [PDF]

BMC Res Notes, 2020
Seshagiri Rao N, Kalyani K, Mitiku B.
europepmc   +1 more source

Quantum Geometric Engineering of Dual Hall Effects in 2D Antiferromagnetic Bilayers via Interlayer Magnetic Coupling

Advanced Science, EarlyView.
Precise tuning of interlayer magnetic coupling in two‐dimensional bilayers enables control over altermagnetic and PT‐symmetric antiferromagnetic phases. This dual‐phase platform yields two intrinsic Hall responses: a Berry curvature–driven linear anomalous Hall effect and a quantum metric–induced second‐order nonlinear anomalous Hall effect ...
Zhenning Sun, Tao Wang, Hao Jin, Xinru Li, Yadong Wei, Jian Wang   +5 more
wiley   +1 more source

The fixed point index and asymptotic fixed point theorems for $k$-set-contractions [PDF]

, 1969
Roger D. Nussbaum
openalex   +1 more source

Biohybrid Computing with Proteinoids and Algae

Advanced Science, EarlyView.
We developed a novel biohybrid computing system by combining proteinoid microspheres with algae. The biological mixture creates spontaneous electrical oscillations. These oscillations can perform simple logic operations, such as AND, OR, NAND, and NOR gates. Environmental factors like temperature and pH affect how the system works.
Panagiotis Mougkogiannis, Andrew Adamatzky   +1 more
wiley   +1 more source

An elementary proof of the fixed-point theorem of Browder and Kirk. [PDF]

, 1969
K. Goebel
openalex   +1 more source