1 citations · 1 across the 3 of their papers we have counts for
6 papers
Sesqui-regular graphs with smallest eigenvalue at least
Qianqian Yang, Brhane Gebremichel, Masood Ur Rehman +2
Koolen et al. showed that if a graph with smallest eigenvalue at least has large minimal valency, then it is -integrable. In this paper, we will focus on the sesqui-regular…
Fractional order magnetic resonance fingerprinting in the human cerebral cortex
Viktor Vegh, Shahrzad Moinian, Qianqian Yang +1
Mathematical models are becoming increasingly important in magnetic resonance imaging (MRI), as they provide a mechanistic approach for making a link between tissue microstructure…
Embedding theory of lattices and its application for -integrable lattices
Qianqian Yang, Kiyoto Yoshino
For a positive integer , a lattice is said to be -integrable if is isometric to a sublattice of for some integer . Conway and Sloane f…
Recent progress on graphs with fixed smallest eigenvalue
Jack H. Koolen, Meng-Yue Cao, Qianqian Yang
We give a survey on graphs with fixed smallest eigenvalue, especially on graphs with large minimal valency and also on graphs with good structures. Our survey mainly consists of th…
On the integrability of strongly regular graphs
Jack H. Koolen, Masood Ur Rehman, Qianqian Yang
Koolen et al. showed that if a connected graph with smallest eigenvalue at least has large minimal valency, then it is -integrable. In this paper, we will prove that a lowe…
On graphs with smallest eigenvalue at least -3 and their lattices
Jack H. Koolen, Jae Young Yang, Qianqian Yang
In this paper, we show that a connected graph with smallest eigenvalue at least -3 and large enough minimal degree is 2-integrable. This result generalizes a 1977 result of Hoffman…