Papers by Andrzej Kurpiel
Demonstratio Mathematica, 1987
Colloquium Mathematicum, 1980
Demonstratio Mathematica, 1987
A conoept of m u l t i a d j o i n t func to r in t roduced here may be t r e a t e d as a g e n ... more A conoept of m u l t i a d j o i n t func to r in t roduced here may be t r e a t e d as a g e n e r a l i z a t i o n of a " f u n c t o r having a l e f t m u l t i a d j o i n t " i n the Bense of Diers [2 ] and s imul t aneous ly i t g e n e r a l i z e s a Gray ' s concept of " s p l i t f i b r a t i o n wi th smal l f i b r e s " [ 4 ] . The main i dea of our approach i s t h a t f o r a g iven f u n c t o r U t A—»-C and C-ob jec t X i n s t e a d of one " u n i v e r s a l arrow" w i t h domain X ( a d j o i n t n a s s ) or " the s e t u n i v e r s a l arrow" w i t h domain X ( d i s c r e t e m u l t i a d j o i n t n e s s [2 ] ) we c o n s i d e r a " sma l l ca tegory of u n i v e r s a l arrow" w i t h domain X being a c o r e f l e c t i v e subca tegory of a comma oategory ( X j U ) .
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Papers by Andrzej Kurpiel