Boolean sublattices connected with minimization problems on matroids. - Masataka Nakamura (Math. Program., 1982)

Structural theorems for submodular functions, polymatroids and polymatroid intersections. - Masataka Nakamura (Graphs Comb., 1988)

A note on binary fundamental transversal matroids. - Masataka Nakamura (Graphs Comb., 1989)

Delta-polymatroids and an extension of Edmonds-Giles' TDI scheme. - Masataka Nakamura (IPCO, 1993)

An Extension of Elementary Bipartite Graphs to Matroid Pairs and its Characterization. - Masataka Nakamura (Discret. Appl. Math., 1994)

Integral Polyhedra Associated with Certain Submodular Functions Defined on 012-Vectors. - Kenji Kashiwabara; Masataka Nakamura; Takashi Takabatake (IPCO, 1999)

A single-element extension of antimatroids. - Masataka Nakamura (Discret. Appl. Math., 2002)

Excluded-minor characterizations of antimatroids arisen from posets and graph searches. - Masataka Nakamura (Discret. Appl. Math., 2003)

The forbidden minor characterization of line-search antimatroids of rooted digraphs. - Yoshio Okamoto; Masataka Nakamura (Discret. Appl. Math., 2003)

The affine representation theorem for abstract convex geometries. - Kenji Kashiwabara; Masataka Nakamura; Yoshio Okamoto (Comput. Geom., 2005)

A Realization of Low-Frequency Active RC Second-Order Band-Pass Circuit with Stable High Q. - Nobuyuki Masumi; Masataka Nakamura (IEICE Trans. Electron., 2005)

Characterizations of polygreedoids and poly-antimatroids by greedy algorithms. - Masataka Nakamura (Oper. Res. Lett., 2005)

The max-flow min-cut property of two-dimensional affine convex geometries. - Masahiro Hachimori; Masataka Nakamura (Discret. Math., 2008)

On the NBC-complexes and beta-invariants of abstract convex geometries. - Masataka Nakamura (Discret. Appl. Math., 2009)

Characterizations of the convex geometries arising from the double shellings of posets. - Kenji Kashiwabara; Masataka Nakamura (Discret. Math., 2010)

The Prime Stems of Rooted Circuits of Closure Spaces and Minimum Implicational Bases. - Masataka Nakamura; Kenji Kashiwabara (Electron. J. Comb., 2013)

The collapse of the Friendster network started from the center of the core. - Kazunori Seki; Masataka Nakamura (ASONAM, 2016)

The mechanism of collapse of the Friendster network: What can we learn from the core structure of Friendster? - Kazunori Seki; Masataka Nakamura (Soc. Netw. Anal. Min., 2017)