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 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1471—1871Download front and back covers
 On three-dimensional semi-terminal singularities Kento Fujita MSC numbers : Primary 14B05; Secondary 14E30 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1471—1483
 Birational rigidity is not an open property Ivan Cheltsov, Mikhail Grinenko MSC numbers : 14J45, 14E05, 14E07, 14E08 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1485—1526
 Laurent phenomenon for Landau--Ginzburg models of complete intersections in Grassmannians of planes Victor Przyjalkowski, Constantin Shramov MSC numbers : 14E05, 14M15 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1527—1575
 On contraction of algebraic points Fedor Bogomolov, Jin Qian MSC numbers : Primary 14H30; Secondary 11G32 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1577—1596
 Sharygin triangles and elliptic curves Igor V. Netay, Alexei V. Savvateev MSC numbers : 11D25, 14H45, 97G40 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1597—1617
 A simple proof of the non-rationality of a general quartic double solid Yuri Prokhorov MSC numbers : 14E08, 14J30, 14J45, 14J50 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1619—1625
 Birationally rigid complete intersections of codimension two Daniel Evans, Aleksandr Pukhlikov MSC numbers : 14E05, 14E07 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1627—1654
 Cylinders in del Pezzo surfaces with du Val singularities Grigory Belousov MSC numbers : 14E07, 14E25, 14J45 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1655—1667
 On commuting ordinary differential operators with polynomial coefficients corresponding to spectral curves of genus two Valentina N. Davletshina, Andrey E. Mironov MSC numbers : 37K20 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1669—1675
 Okounkov bodies and Zariski decompositions on surfaces Sung Rak Choi, Jinhyung Park, Joonyeong Won MSC numbers : Primary 14C20; Secondary 52A20 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1677—1697
 Second Chern numbers of vector bundles and higher adeles Denis V. Osipov MSC numbers : 14J60, 14J20 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1699—1718
 Efficiently computing torus charts in Landau--Ginzburg models of complete intersections in Grassmannians of planes Thomas Prince MSC numbers : 14J33, 14J45 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1719—1724
 The Bogomolov-Prokhorov invariant of surfaces as equivariant cohomology Evgeny Shinder MSC numbers : 14J26, 14L30, 55N91 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1725—1741
 Endomorphisms of projective bundles over a certain class of varieties Ekaterina Amerik, Alexandra Kuznetsova MSC numbers : 14J60, 14L30 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1743—1755
 Hilbert's Theorem 90 for non-compact groups Marat Rovinsky MSC numbers : 14C15, 14F20, 14F43, 20B27, 20C32 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1757—1771
 Singularities of divisors on flag varieties via Hwang's product theorem Evgeny Smirnov MSC numbers : Primary 14E30; Secondary 14M15 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1773—1778
 Minimal del Pezzo surfaces of degree 2 over finite fields Andrey Trepalin MSC numbers : 14J26, 14G15, 14G10, 11G25 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1779—1801
 Equivariant matrix factorizations and Hamiltonian reduction Sergey Arkhipov, Tina Kanstrup MSC numbers : 16G99, 14F05, 14F43 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1803—1825
 Integral Chow motives of threefolds with $K$-motives of unit type Sergey Gorchinskiy MSC numbers : 14C15, 14C35 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1827—1849
 Heegaard splittings of branched cyclic coverings of connected sums of lens spaces Tatyana Kozlovskaya MSC numbers : Primary 57M12, 57M25 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1851—1857
 The Jordan constant for Cremona group of rank 2 Egor Yasinsky MSC numbers : Primary 14E07; Secondary 14J26, 14J50, 20B25 Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1859—1871