Volume of Pyramids and Cones

Mathematics 2

Mathematics 1

On finite 2-groups all of whose subgroups are mutually isomorphic

Finite 2-groups all of whose proper subgroups have commutator groups of order ≤ 2.

On finite 2-groups all of whose maximal subgroups are mutually isomorphic

Finite 2-groups all of whose proper subgroups have commutator groups of order ≤ 2.

Second-metacyclic p-groups for odd primes

A class of nonabelian nonmetacyclic finite 2-groups

Second-metacyclic finite 2-groups

A lines-points relation formula for symmetric block design

Group theory and Polya-Redfield theorem

A classification of finite 2-groups with some non-metacylic subgroups and with all second maximal subgroups being metacyclic

Symmetric block designs (61,16,4) admitting an automorphism of order 15

The unique symmetric block design (61, 16, 4) admitting an automorphism of order 15 operating standardly

The unique symmetric block design (61,16,4) admitting an automorphism of order 15 operating standardly

On biplanes (56, 11, 2) with automorphism groups of order four

On symmetric block designs (40, 13, 4) with automorphisms of order 13

Biplanes (56, 11, 2) with involutory automorphism fixing 14 points

BIPLANES AND THEIR AUTOMORPHISMS

Biplanes (56, 11, 2) with Automorphism Group Z2xZ2 Fixing Some Point

BIPLANES (56, 11, 2) WITH AUTOMORPHISMS OF ORDER 4 FIXING SOME POINT