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22 papers · 1 filter
Fano manifolds and stability of tangent bundles
Akihiro Kanemitsu
We determine the stability/instability of the tangent bundles of the Fano varieties in a certain class of two orbit varieties, which are classified by Pasquier in 2009. As a conseq…
Josephson Effect and Charge Distribution in Thin BiTe Topological Insulators
Martin P. Stehno, Prosper Ngabonziza, Hiroaki Myoren +1
Thin layers of topological insulator materials are quasi-two-dimensional systems featuring a complex interplay between quantum confinement and topological band structure. To unders…
Systematic study of the peak energy of the broad-band Gamma-Ray Burst
Daisuke Katsukura, Takanori Sakamoto, Makoto S. Tashiro +1
We have performed a systematic study of Gamma-Ray Bursts (GRBs), which have various values in the peak energy of the spectrum of the prompt emission, , observe…
Geodesic Folding of Tetrahedron
Seri Nishimoto, Takashi Horiyama, Tomohiro Tachi
In this work, we show the geometric properties of a family of polyhedra obtained by folding a regular tetrahedron along regular triangular grids. Each polyhedron is identified by a…
Alternating knots with large boundary slope diameter
Masaharu Ishikawa, Thomas W. Mattman, Kazuya Namiki +1
We show that, for an alternating knot, the ratio of the diameter of the set of boundary slopes to the crossing number can be arbitrarily large.
Sparse Modeling in Quantum Many-Body Problems
Junya Otsuki, Masayuki Ohzeki, Hiroshi Shinaoka +1
This review paper describes the basic concept and technical details of sparse modeling and its applications to quantum many-body problems. Sparse modeling refers to methodologies f…