Optical spectropolarimetry of the normal thermonuclear supernova SN2019np from -14.5 to +14.5 days relative B-band maximum detected an intrinsic continuum polarization, p(cont), 0.21+-0.09% at first epoch. Between -11.5 +05, p(cont) remained about 0 and by day was again significant 0.19+-0.10%. Not considering epoch, dominant axis SiII(6355A) roughly constant, staying close until both rotated i...

The sectional category of a subgroup inclusion H↪G can be defined as the corresponding map between Eilenberg–MacLane spaces. We extend characterization topological complexity aspherical spaces given by Farber, Grant, Lupton and Oprea to context inclusions investigate it means Adamson cohomology theory.

0. Introduction 1. L-Betti numbers for CW -complexes of finite type 2. Basic conjectures 3. Low-dimensional manifolds 4. Aspherical manifolds and amenability 5. Approximating L-Betti numbers by ordinary Betti numbers 6. L-Betti numbers and groups 7. Kähler hyperbolic manifolds 8. Novikov-Shubin invariants 9. L-torsion 10. Algebraic dimension theory of finite von Neumann algebras 11. The zero-in...