Partition-and-Recur (PAR) method is a simple and useful formal method. It can be used to design and testify algo-rithmic programs. In this paper, we propose that PAR method is an effective formal ...

The study of alternating sign matrices (ASMs) occupies a central position in enumerative combinatorics, linking intricate algebraic methods with models from statistical physics. ASMs are square ...

ABSTRACT: Partition-and-Recur (PAR) method is a simple and useful formal method. It can be used to design and testify algo-rithmic programs. In this paper, we propose that PAR method is an effective ...

Abstract: Combinatorics is the modern mathematics that studies discrete objects, and the problems studied include counting problems, existential problems, enumeration, algorithm problems and ...

借助**sympy.combinatorics.partitions.IntegerPartition().next_lex()**方法，我们可以利用sympy.combinatorics.partitions.IntegerPartition().next_lex ...

For a description of fundamental algorithms of finitely presented groups we often make use of Handbook of Computational Group Theory. Finitely presented groups are constructed by factoring a free ...

This unit serves as an introduction to combinatorics, developing fundamental aspects of a diverse range of topics in discrete mathematics such as enumeration, extremal graph theory, Ramsey theory and ...