Comparing Zagreb indices for connected graphs. - Batmend Horoldagva; Sang-Gu Lee (Discret. Appl. Math., 2010)

Complete characterization of graphs for direct comparing Zagreb indices. - Batmend Horoldagva; Kinkar Chandra Das; Tsend-Ayush Selenge (Discret. Appl. Math., 2016)

On ve-degree and ev-degree of graphs. - Batmend Horoldagva; Kinkar Chandra Das; Tsend-Ayush Selenge (Discret. Optim., 2019)

On reduced second Zagreb index. - Lkhagva Buyantogtokh; Batmend Horoldagva; Kinkar Chandra Das (J. Comb. Optim., 2020)

On the maximum size of stepwise irregular graphs. - Lkhagva Buyantogtokh; Enkhbayar Azjargal; Batmend Horoldagva; Shiikhar Dorjsembe; Damchaa Adiyanyam (Appl. Math. Comput., 2021)

On graphs with maximum average eccentricity. - Batmend Horoldagva; Lkhagva Buyantogtokh; Shiikhar Dorjsembe; Enkhbayar Azjargal; Damchaa Adiyanyam (Discret. Appl. Math., 2021)

Cactus Graphs with Maximal Multiplicative Sum Zagreb Index. - Chunlei Xu; Batmend Horoldagva; Lkhagva Buyantogtokh (Symmetry, 2021)

Graphs with maximum irregularity. - Shiikhar Dorjsembe; Lkhagva Buyantogtokh; Kinkar Chandra Das; Batmend Horoldagva (Comput. Appl. Math., 2022)

(n,m)-graphs with maximum exponential second Zagreb index. - Lkhagva Buyantogtokh; Batmend Horoldagva (Discret. Appl. Math., 2024)