64 citations · 452 across the 47 of their papers we have counts for
11 papers · 1 filter
Bulk Phase Transition and Edge Behavior in Temporally Correlated Random Matrices
Masato Hisakado, Takuya Kaneko
We study long-range correlated Wigner-type matrices built from row-independent stationary Gaussian sequences. For exponentially decaying (AR(1)) correlations, the bulk spectral den…
A Cascade of Volterra-Operator BBP Transitions in a Correlated Wigner Matrix
Masato Hisakado
We study a Wigner-type random matrix in which the off-diagonal correlation between entries is generated by a random factor shared among all entries in a given row and column, with…
Deformation of semi-circle law for the correlated time series and Phase transition
Masato Hisakado, Takuya Kaneko
We study Wigner-type random matrices constructed from financial time series with temporal correlations. We characterize the deformed spectral law through its moments and observe be…
Structural Properties of the Asymmetric Barabási-Albert Model in the Lattice Limit
Kazuaki Nakayama, Masato Hisakado, Shintaro Mori
The Asymmetric BA model extends the Barabási-Albert scale-free network model by introducing a parameter . As varies, the model transitions through different network structur…
Annealing of Ant Colony Optimization in the infinite-range Ising model
Shintaro Mori, Taiyo Shimizu, Masato Hisakado +1
Ant colony optimization (ACO) leverages the parameter to modulate the decision function's sensitivity to pheromone levels, balancing the exploration of diverse solutions with t…
Deformation of Marchenko-Pastur distribution for the correlated time series
Masato Hisakado, Takuya Kaneko
We study the eigenvalue of the Wishart matrix, which is created from a time series with temporal correlation. When there is no correlation, the eigenvalue distribution of the Wisha…