K$\omega$ -- Open-source library for the shifted Krylov subspace method of the form $(zI-H)x=b$

Takeo Hoshi, Mitsuaki Kawamura, Kazuyoshi Yoshimi +6

We develop K$\omega$, an open-source linear algebra library for the shifted Krylov subspace methods. The methods solve a set of shifted linear equations $(z_k I-H)x^{(k)}=b\, (k=0,1,2,.…