Tilting modules and exceptional sequences for leaf quotients of type A zig-zag algebras Elin Persson Westin Original Paper Open access 27 September 2019 Pages: 189 - 207
2-AB rings and 2-absorbing rings Hizem SanaSmach Sihem Original Paper 14 October 2019 Pages: 209 - 218
Regularity comparison of fiber cone and associated graded ring Mousumi MandalRamakrishna Nanduri Original Paper 23 November 2019 Pages: 219 - 229
Vanishing symmetric Kronecker coefficients Nicolas Ressayre Original Paper 17 October 2019 Pages: 231 - 246
A note on the Hard Lefschetz property of symplectic structures H. Andersen Original Paper 25 October 2019 Pages: 247 - 266
On the linear Weingarten spacelike submanifolds immersed in a locally symmetric semi-Riemannian space Jogli G. AraújoWeiller F. C. BarbozaMarco Antonio L. Velásquez Original Paper 25 October 2019 Pages: 267 - 282
Algebraic conditions for the positivity of sectional curvature Dan Gregorian Fodor Original Paper 23 September 2019 Pages: 283 - 295
Minimal degree equations for curves and surfaces (variations on a theme of Halphen) Edoardo BallicoEmanuele Ventura Original Paper 02 November 2019 Pages: 297 - 315
Primitivoids and inversions of plane curves Shyuichi IzumiyaNobuko Takeuchi Original Paper 04 November 2019 Pages: 317 - 334
Lifting degenerate simplices with a single volume constraint Lizhao Zhang Original Paper 05 November 2019 Pages: 335 - 353
Necessary conditions for the extendibility of a first-order flex of a polyhedron to its flex Victor Alexandrov Original Paper 09 November 2019 Pages: 355 - 368
Diameter, width and thickness of spherical reduced convex bodies with an application to Wulff shapes Marek Lassak Original Paper 16 November 2019 Pages: 369 - 379