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Almost-isometry between Teichmüller metric and length-spectra metric on moduli space
Teichm¨uller metric length-spectra metric almost isometry
2011/1/19
We prove an analogue of Farb-Masur’s theorem that the lengthspectra metric on moduli space is “almost isometric” to a simple model V(S) which is induced by the cone metric over the complex of curves. ...
Classification of self-dual codes of length 36
Classification self-dual codes of length 36
2011/2/28
A complete classification of binary self-dual codes of length 36 is given.
Classification of quaternary Hermitian self-dual codes of length 20
Classification quaternary Hermitian self-dual codes of length 20
2011/1/18
A classification of quaternary Hermitian self-dual codes of length 20 is given.Using this classification, a classification of extremal quaternary Hermitian self-dual codes of length 22 is also given.
A characterization of Büchi's integer sequences of length 3
Büchi's integer sequences math
2010/11/15
We give a new characterization of generalized B\"uchi sequences (sequences whose sequence of squares has constant second difference $(a)$, for some fixed integer $a$) of length 3 over the integers an...
Groups Whose Proper Subgroups are Hypercentral of Length at Most \leq w
hypercentral groups locally nilpotent groups
2010/3/1
Groups, all proper subgroups of which are hypercentral of length at most w and every proper subgroup of which is a Bn-group for a natural number n depending on the subgroup, are studied in this articl...